This disclosure relates generally to roadways and, more particularly, to barriers for roadways to manage traffic of vehicles.
Barriers for roadways (e.g., highways, bridges, and other roads) are used to manage traffic of vehicles, such as to establish lanes, protect motorists and other people (e.g., pedestrians, constructions workers, etc.) against crashes or other impacts, and/or other purposes.
Some barriers are fixed and/or permanent (e.g., such that they remain substantially stationary and/or are integrated into road infrastructures).
Others are movable barriers configured to be transferred between different locations by transfer vehicles (e.g., lifting and moving them), such as for lane management (e.g., reconfiguring lanes, such as for peak traffic times (e.g., “rush hour”), etc.), roadwork (e.g., construction sites to build or repair roads), etc.
While they are certainly useful and have evolved, existing barriers have some issues. For example, movable barriers may sometimes deflect too much upon being impacted by vehicles, be expensive, etc. Some barriers may also pose particular risks for motorists and others (e.g., “catapulting” or “vaulting” of vehicles when impacted).
For these and/or other reasons, there is a need to improve barriers for roadways.
According to various aspects, this disclosure relates to a barrier for a roadway (e.g., a highway, bridge, or other road), which can be used to manage vehicular traffic, such as to establish lanes, protect motorists and other people (e.g., pedestrians, constructions workers, etc.) against crashes or other impacts, and/or other purposes, and which may be configured to enhance its use and performance, such as by better protecting the motorists and others when impacted by vehicles (e.g., reducing deflection by deflecting less or substantially not deflecting; mitigating risks of “catapulting” or “vaulting” of vehicles; and/or otherwise improving protection provided by the barrier), facilitating transportation, installation and/or transfer of the barrier at the roadway, and/or enhancing other aspects of the barrier.
For example, according to one aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another, wherein at least three of the barrier modules differ in height.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. The barrier modules differ in height. A transition from a tallest one of the barrier modules to a shortest one of the barrier modules occurs over transition ones of the barrier modules.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. The barrier modules differ in height. Terminal ones of the barrier modules implement a crash cushion configured to deform when impacted by a vehicle. Main ones of the barrier modules are shorter than the terminal ones of the barrier modules. Transition ones of the barrier modules are configured to transition between the terminal ones of the barrier modules and the main ones of the barrier modules.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. At least three of the barrier modules differ in height. The barrier is configured to be transferred between different locations at the roadway by a transfer vehicle.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. The barrier modules differ in height. A transition from a tallest one of the barrier modules to a shortest one of the barrier modules occurs over transition ones of the barrier modules. The barrier is configured to be transferred between different locations at the roadway by a transfer vehicle.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. The barrier modules differ in height. Terminal ones of the barrier modules implement a crash cushion configured to deform when impacted by a vehicle. Main ones of the barrier modules are shorter than the terminal ones of the barrier modules. Transition ones of the barrier modules are configured to transition between the terminal ones of the barrier modules and the main ones of the barrier modules. The barrier is configured to be transferred between different locations at the roadway by a transfer vehicle.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. The barrier modules differ in height. The barrier is configured to be transferred between different locations at the roadway by a transfer vehicle. Each of the barrier modules comprises a conveyor-engaging part configured to be engaged by a conveyor of the transfer vehicle. The conveyor-engaging part of at least one of the barrier modules is at least partly inclined relative to a longitudinal direction of the barrier.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. The barrier modules differ in height. The barrier is configured to be transferred between different locations at the roadway by a transfer vehicle. Each of the barrier modules comprises an overhang configured to be engaged by a conveyor of the transfer vehicle. The overhang of at least one of the barrier modules is at least partly inclined relative to a longitudinal direction of the barrier.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. A given one of the barrier modules is adjustable to adjust a height of the given one of the barrier modules.
According to another aspect, this disclosure relates to a barrier for a roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another. A given one of the barrier modules comprises an adjustment system configured to move parts of the given one of the barrier modules relative to one another to adjust a height of the given one of the barrier modules.
According to another aspect, this disclosure relates to a transfer vehicle for transferring a barrier for a roadway between different locations at the roadway. The barrier comprises a plurality of barrier modules hingedly connected to one another The transfer vehicle comprises a frame, a powertrain configured to generate power for the transfer vehicle, a conveyor configured to admit the barrier modules at a first one of the different locations at the roadway and transfer the barrier modules towards and release the barrier modules at a second one of the different locations at the roadway as the transfer vehicle travels at the roadway, and a control system configured to control the conveyor to transfer respective ones of the barrier modules differing in height.
These and other aspects of this disclosure will now become apparent to those of ordinary skill upon review of a description of embodiments that follows in conjunction with accompanying drawings.
A detailed description of embodiments is provided below, by way of example only, with reference to accompanying drawings, in which:
It is to be expressly understood that the description and drawings are only for purposes of illustrating certain embodiments and are an aid for understanding. They are not intended to be and should not be limiting.
As further discussed below, in various embodiments, the barrier 10 may be configured to enhance its use and performance, such as by better protecting motorists and others when impacted by vehicles (e.g., reducing deflection by deflecting less or substantially not deflecting; mitigating risks of “catapulting” or “vaulting” of vehicles; and/or otherwise improving protection provided by the barrier 10), facilitating transportation, installation and/or transfer of the barrier 10 at the roadway 13, and/or enhancing other aspects of the barrier 10.
The barrier 10 comprises a plurality of barrier modules 121-12N connected to one another. This allows a length of the barrier 10 to be set as desired for the roadway 13. The barrier 10 has a longitudinal direction LB, a heightwise direction HB, and a widthwise direction WB. Similarly, each of the barrier modules 121-12N has a longitudinal direction LM, a heightwise direction HM, and a widthwise direction WM.
In this embodiment, as shown in
The longitudinal direction LM of each of the barrier module 12x defines a length LX of each of the barrier module 12x. The length LX of the barrier modules 12x may be defined from a pin 43 of the hinge 16 of the barrier module 12x to the pin 43 of the hinge 16 of adjacent barrier module 12j.
The length LX of the barrier modules 12x may comprise any suitable value. For example, in one embodiment, the length LX of the barrier module 12x may be at least 1 meter (m) (about 3.3 feet (ft)). In another embodiment, the length LX of the barrier module 12x may be at least 1.15 m (about 3.8 ft). In yet another embodiment, the length LX of the barrier module 12x may be at least 1.2 m (about 3.9 ft). The aforementioned values of the length LX of the barrier modules 12x may improve transportation of the barrier modules 121-12N (e.g. may optimize the space occupied by the barrier modules 121-12N when placed in a flatbed truck or other transport vehicles).
More particularly, in this embodiment, the barrier 10 is a movable barrier configured to be transferred between different locations L1, L2 at the roadway 13 by a transfer vehicle 20, such as for lane management (e.g., reconfiguring lanes, such as for peak traffic times (e.g., “rush hour”), etc.), roadwork (e.g., construction sites to build or repair roads), etc.
For example, in this embodiment, the transfer vehicle 20 comprises a conveyor 22 to admit the barrier modules 121-12N at the location L1 at the roadway 13 and transfer them towards and release them at the location L2 at the roadway 13 as the transfer vehicle 20 travels at the roadway 13, as shown in
Each barrier module 12x of the barrier modules 121-12N comprises a base portion 30, an upper portion 32, and an intermediate portion 34 between its base portion 30 and its upper portion 32.
In this embodiment, the upper portion 32 of the barrier module 12x is wider than the intermediate portion 34 of the barrier module 12x. This may facilitate transfer of the barrier module 12x by the transfer vehicle 20 and/or enhance protection when the barrier module 12x is impacted.
More particularly, in this embodiment, the upper portion 32 of the barrier module 12x comprises a conveyor-engaging part 33 configured to be engaged by the conveyor 22 of the transfer vehicle 20 to lift and move the barrier module 12x. Specifically, in this embodiment, the conveyor-engaging part 33 of the upper portion 32 of the barrier module 12x is an overhang. The overhang 33 is also configured to engage an impacting vehicle 19 that impacts the barrier module 12x and impede movement of the impacting vehicle 19 upwards over the overhang 33. In this case, the upper portion 32 of the barrier module 12x is T-shaped to form the overhang 33.
Also, in this embodiment, the base portion 30 of the barrier module 12x is wider than the intermediate portion 34 and the upper portion 32 of the barrier module 12x. This enhances stability of the barrier module 12x, while minimizing damage to the impacting vehicle.
The widthwise direction WM of the barrier module 12x defines a width WX of the barrier module 12x. The width WX of the barrier module 12x may be defined as the width of the base portion 30 of the barrier module 12x.
The width WX of the barrier modules 12x may have any suitable value. For example, in one embodiment, the width WX of the barrier module 12x may be at least 18 inches. In another embodiment, the width WX of the barrier module 12x may be at least 24 inches.
The barrier module 12x comprises a body 36. In this embodiment, the body 36 of the barrier module 12x includes concrete 38 (e.g., a concrete casting). In this example, the concrete 38 forms at least part of a periphery of the body 36 of the barrier module 12x.
Also, in this embodiment, the body 36 of the barrier module 12x comprises a brace 40 connected to the concrete 38. As shown in
In some embodiments, the body 36 of the barrier module 12x may be configured without a brace. In such embodiments, the body 36 of the barrier module 12x may comprise fiber filled concrete (e.g., synthetic fibers, glass fibers, metallic fibers).
The barrier module 12x comprises a connector 41 configured to connect the barrier module 12x to the adjacent barrier module 12j. As shown in
In this example of implementation, as shown in
In another example of implementation, as shown in
In this embodiment, the brace 40 of the barrier module 12x is secured to the connector 41 of the barrier module 12x. For instance, in this embodiment, each of respective ones of the bracing members 421-42B of the barrier module 12x comprises a threaded opening 51 to receive a threaded fastener 53 to fasten the bracing members 421-42B to the connector 41 of the barrier module 12x.
In an another embodiment, each of respective ones of the bracing members 421-42B of the barrier module 12x comprises a threaded end 107 to be received by a fastener 116 to fasten the bracing members 421-42B of the barrier module 12x to the connector 41 of the barrier module 12x.
The body 36 of the barrier module 12x may be implemented in any other way in other embodiments.
For example, in some embodiments, with additional reference to
In various examples of implementation, the substance 52 may be a liquid (e.g., water), sand, gravel, concrete (e.g., poured-in-place concrete), foam (e.g. solid foam), or any other suitable substance (e.g., to add mass, provide cushioning upon impact, etc.).
In some embodiments, the substance 52 may be a first substance and the barrier module 12x may comprise a second substance 152 contained in the container 50.
In order to facilitate transportation, the shell 60 of the container 50 of the body 36 of the barrier module 12x may be empty during transport and the substance 52 may be introduced into the hollow interior of 54 of the body 36 of the barrier module 12x after transportation of the barrier module 12x.
In some cases, a removable filler cap 26 releasably covers an opening in the barrier module 12x is provided to allow the substance 52 to be introduced into the hollow interior 54 of the body 36. The substance 52 may be introduced into the hollow interior 54 of the body 36 of the barrier module 12x in any suitable manner (e.g., using a conveyor, a pump, gravitational force etc.). A drain 28 may be provided to allow the body 36 to be emptied. Additionally, or alternatively, the opening in the barrier module 12x may be configured for emptying the substance 52 contained inside the hollow interior 54 of the body 36. The container 50 of the body 36 of the barrier module 12x may be disassembled to facilitate introducing and/or emptying the substance 52 into the hollow interior 54 of the body 36. The container 50 of the body 36 of the barrier module 12x may be emptied in any suitable manner (e.g. by gravitational force or with any other method such as by water jet, by jet of compressed air, by jet of steam, by suction, by vibration, or by any other force such as by shocks or physical force.)
The container 50 may comprise one or more ports to facilitate connection of conduits to the body 36 of the container 50, the conduits configured to introduce jets of water, air or steam into the body 36 of the container 50, to name a few non-limiting examples.
The container 50 of the body 36 of the barrier module 12x may be implemented in any suitable way.
In this embodiment, the shell 60 of the container 50 comprises polymeric material 59. For instance, the polymeric material 59 may include polyethylene (high, medium or low density), acrylonitrile butadiene styrene (abs), polystyrene, polypropylene, polyurethane (PU), ethylene-vinyl acetate (EVA), nylon, polyester, vinylester, polyvinyl chloride, polycarbonate, and/or any other thermoplastic or thermosetting polymer, or any other suitable polymer. In some examples, the polymeric material 59 may be reinforced (e.g., composite material). For example, the polymeric material 59 may be fiber-reinforced polymeric material comprising fibers disposed in a polymeric matrix. For instance, in some embodiments, the polymeric matrix may include any suitable polymeric resin, such as a thermoplastic or thermosetting resin, like epoxy, polyethylene, polypropylene, acrylic, thermoplastic polyurethane (TPU), polyether ether ketone (PEEK) or other polyaryletherketone (PAEK), polyethylene terephthalate (PET), polyvinyl chloride (PVC), poly(methyl methacrylate) (PMMA), polycarbonate, acrylonitrile butadiene styrene (ABS), nylon, polyimide, polysulfone, polyamide-imide, polyurethane, or any other suitable resin, and the fibers may include carbon fibers, glass fibers, polymeric fibers such as aramid fibers (e.g., Kevlar fibers), boron fibers, silicon carbide fibers, metallic fibers, ceramic fibers, etc.
In other embodiments, the shell 60 of the container 50 may comprise metallic material. For instance, in some embodiment, the shell 60 of the container 50 may be made of steel, aluminum or other suitable metal.
In some cases, the shell 60 of the container 50 may be configured to be thin (i.e., walls of the shell 60 of the container 50 may be configured to be thin). In some instances, including instances where the shell 60 of the container 50 is configured to be thin, the shell 60 of the container 50 may comprise reinforcements as will be discussed below.
In this example of implementation, the container 50 is molded. More particularly, in this example, the container 50 is rotomolded or otherwise molded to create its hollow interior 54. In other examples of implementation, the container 50 may include portions formed separately and assembled together (e.g., by being bonded, welded, forged, mechanically fastened, etc.). In yet other examples of implementation, such as where the shell 60 of the container 50 is metallic, it may be welded, forged, punched, hydroformed or made using any other metal forming process.
In this example of implementation, a mass of the shell 60 of the container 50 comprising the metallic material may represent between 15% and 50% of the mass of the barrier module 12x includes concrete 38 (e.g., a concrete casting) at equal volume.
In this embodiment, at least part of the connector 41 of the barrier module 12x is integrally formed with the container 50 of the barrier module 12x. For instance, in this embodiment, at least part of the connector 41 of the barrier module 12x is integrally rotomolded with the container 50 of the barrier module 12x during rotomolding of the container 50. In this example, at least part of each of the connecting members 551, 552 of the connector 41 of the barrier module 12x is integrally rotomolded with the container 50 of the barrier module 12x.
In another embodiment, as shown in
One or more other components may be connected to the container 50 of the body 36 of the barrier module 12x in various embodiments.
For example, in this embodiment, the brace 40 is connected to and extends inside the container 50 of the body 36 of the barrier module 12x. In some cases, the brace 40 may be at least partly embedded in the substance 52 contained in the container 50.
The brace 40 of the barrier module 12x may be secured to the connector 41 of the barrier module 12x. For instance, the brace 40 comprises the threaded opening 51 to receive the threaded fastener 53 to fasten the brace 40 of the barrier module 12x to the connector 41 of the barrier module 12x.
The brace 40 may comprise a metallic material. In this example, the brace 40 comprises the bracing members 421-42B spaced from one another. In this case, respective ones of the bracing members 421-42B are elongate in the longitudinal direction of the barrier 10. More particularly, in this example, the bracing members 421-42B include the tie rods 1241, 1242.
Also, in this embodiment, the barrier module 12x comprises reinforcements 49x connected to the container 50. The reinforcements 49x may be mounted on lateral sides 44x of the container 50.
For example, in one embodiment, the barrier module 12x may comprise a first reinforcement 491 connected to the container 50 of the barrier module 12x and mounted on a first lateral side 441 of the container 50. The barrier module 12x may comprise a second reinforcement 492 connected to the container 50 of the barrier module 12x and mounted on a second lateral side 442 of the container 50.
In yet another embodiment, the reinforcements 49x may be mounted inside the container 50. For instance, the first reinforcement 491 may be mounted on the lateral side 441 of the container 50 and the second reinforcement 492 may be mounted inside the container 50. In yet another example of implementation of this embodiment, as shown in
As shown in
The guardrail 47 may comprise a recess 48. Each of the lateral sides 441, 442 of the container 50 may comprise a projection 46x projecting into the recess 48 of the guardrail 47. In one embodiment, the recess 48 of the guardrail 47 may be a first recess 481 and the projection 46 of each of the lateral sides 441, 442 of the container 50 may be a first projection 461. In this embodiment, each of the lateral sides 441, 442 of the container 50 may comprise a second projection 462 projecting into a second recess 482 of the guardrail 47.
The guardrail 47 may have a variety of suitable profiles including, for example, those shown in
In some embodiments, the guardrail 47 of barrier module 12x may overlap a guardrail 47 of the adjacent barrier module 12j, as shown in
The barrier 10 may be configured to enhance its use and performance in various embodiments. Examples of this will now be described.
1. Reduced Deflection when Impacted
In some embodiments, the barrier 10 may reduce deflection, by deflecting less or substantially not deflecting, when impacted by vehicles, in some cases while facilitating installation and/or transfer the barrier 10 between the different locations L1, L2 at the roadway 13, such as by the transfer vehicle 20.
For example, in some embodiments, with additional reference to
While having such reduced deflection, the barrier 10 may provide ease of installation and/or mobility at the roadway 13. For instance, in some embodiments, the pin 43 of the hinge 16 may be installable manually, i.e., without using any mechanized tool such as a hydraulic cylinder, an actuator, a hydraulic hammer, a pneumatic hammer, or any other machine, to join the connector 41 of the barrier module 12x and the connector 41 of the adjacent barrier module 12j. In some cases, one or more nonmechanized tools such as a hammer or screwdriver may be used to install the pin 43 of the hinge 16. Thus, in some cases, the hinge 16 may be viewed as a “quick-connect” hinge. This is in contrast with conventional movable barriers which have limited deflection but require a hydraulic cylinder, an actuator, a hydraulic hammer, a pneumatic hammer, and/or another machine to install their hinge's pin.
As shown in
For example, in some embodiments, a ratio of a maximal dimension Dmax of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x over a minimal dimension Dmin of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x may be limited. For instance, in some embodiments, the ratio of the maximal dimension Dmax of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x over the minimal dimension Dmin of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x may be no more than 1.8, in some cases no more than 1.6, in some cases no more than 1.4, and in some cases even less.
Also, in some embodiments, and an aspect ratio of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x may be limited. This aspect ratio refers to a ratio of the maximal dimension Dmax of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x over an orthogonal dimension of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x that is orthogonal (i.e., normal) to the maximal dimension Dmax of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x (which may be the minimal dimension Dmin of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x). For instance, in some embodiments, the aspect ratio of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x may be no more than 1.8, in some cases no more than 1.6, in some cases no more than 1.4, and in some cases even less.
Furthermore, in some embodiments, a ratio of a maximal dimension Dmax of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x over a dimension Dpin of a cross-section P of the pin 43 of the connector 41 of the barrier module 12x may be limited. For instance, in some embodiments, the ratio of the maximal dimension Dmax of the cross-section C of the opening 56 of the connector 41 of the barrier module 12x over the dimension Dpin of the cross-section P of the pin 43 of the connector 41 of the barrier module 12x may be less than 2, no more than 1.8, in some cases no more than 1.6, in some cases no more than 1.4, in some cases no more than 1.15, in some cases no more than 1.05, and in some cases even less. Accordingly, the pin 43 of the connector 41 may closely fit within the opening 56 of the connector 41 of the barrier module 12x.
The opening 56 of the connector 41 of the barrier module 12x may have any suitable shape. In some embodiments, the opening 56 of the connector 41 may be circular. In this embodiment, the opening 56 of the connector 41 of the barrier module 12x is noncircular. More particularly, in this embodiment, the opening 56 of the connector 41 of the barrier module 12x is elongated. In this example, the opening 56 of the connector 41 of the barrier module 12x is oblong. For instance, in this case, the opening 56 of the connector 41 of the barrier module 12x is a slot.
In some cases, the shape of the opening 56 of the upper part of the hinge may be different from the shape of the opening 56 of the lower part of the hinge. For example, as shown in
In some embodiments, as shown in
In some embodiments, as shown in
In some other embodiments, as shown in
The insert 62 is secured to any given one of the connecting members 55x of the connector 41 of the barrier module 12x. In one embodiment, the insert 62 may be secured to the connecting member 551. In another example of implementation, the insert 62 may be secured to the connecting member 552. In yet another example, the insert 62 may be secured to each of the connecting members 551, 552, as shown in
In one example of implementation, the cross-section C of the opening 56 of the connector 41 of the barrier module 12x comprising the first insert 621 may be different from a cross-section C of the opening 100 of the connector 41 of the barrier module 12x comprising the second insert 622. For example, the cross-section C of the opening 56 of the connector 41 of the barrier module 12x may be smaller than the cross-section C of the opening 100 of the connector 41 of the barrier module 12x. This may help minimize the splaying and rotation of the barrier module 12x while also facilitating transportation by the conveyor 22.
In yet another example of implementation, the insert 62 may extend to and be secured to both the connecting members 551, 552.
As shown in
The insert 62 may be affixed to the connecting member 55x in any suitable manner. In this embodiment, the insert 62 is permanently affixed to the connecting member 55x (i.e., affixed to the connecting member 55x such that it cannot be readily removed from the connecting member 55x without damaging or otherwise impairing integrity of the insert 62 and/or the connecting member 55x). For example, in one embodiment, the insert 62 of the connector 41 of the barrier module 12x may be thermally affixed to the connecting member 55x. For instance, the insert 62 may be welded to the connecting member 55x.
In some embodiments, as shown in
As shown in
In one embodiment, as shown in
In this embodiment, the insert 62 of the connector 41 of the barrier module 12x is disposed such that its projection 66 is compressed by the pin 43 of the hinge 16 when the barrier module 12x and the adjacent barrier module 12j are pressed towards one another and is not compressed by the pin 43 of the hinge 16 when the barrier module 12x and the adjacent barrier module 12j are pulled away from one another. This may help to avoid the insert 62 and its attachment (e.g., welding) to the connecting member 55x being loaded when the hinge 16 is under tensile loading.
Also, in this embodiment, the insert 62 of the connector 41 of the barrier module 12x is welded to the connecting member 55x of the connector 41. More particularly, in this embodiment as shown in
In another embodiment, as shown in
In yet another embodiment, as shown in
With reference to
The frictional members 106 may comprise any suitable material. For instance, the frictional members 106 may comprise elastomeric material 142 (e.g., rubber). In other cases, the frictional members 106 may comprise a metallic material 127 (e.g., steel or other suitable metal). In some cases, a surface 111 of the frictional member 106 may comprise a different material than a remainder of the frictional members 106 (i.e., the material of the surface 111 may be different than the metallic material 127). In one example, the surface 111 of the frictional members 106 may comprise a layer of material 132 which may at least partly cover the metallic material 127 of the frictional members 106. The layer of material 132 may be configured to mechanically attach to the surface 17 of the roadway 13. For example, the layer of material 132 may at least partly comprise diamond (e.g., diamond particles) such that a microstructure of the material 132 may be suitable for mechanically engaging the frictional members 106 to the surface 17 of the roadway 13.
The frictional members 106 may be configured to be secured to the barrier module 12x in any suitable fashion. For example, the frictional members 106 may be mechanically fastened to the body 36 of the barrier module 12x with screws, bolts or other mechanical fasteners. Accordingly, the frictional members 106 may comprise one or more openings 133 configured to receive one or more fasteners 134. Correspondingly, the body 36 of the barrier module 12x may also comprise one or more openings 136 configured to receive the one or more fasteners 134. Thus, the one or more openings 133 of the frictional members 106 may align with respective ones of the one or more openings 136 of the body 36 of the barrier module 12x.
In some embodiments, the body 36 of the barrier module 12x may comprise a plurality of recesses 137 for at least partly receiving respective ones of the frictional members 106. As shown in the illustrated embodiments of
In some embodiments, as shown in
For example, in one embodiment, at least part of the add-on mass 70 may be disposed in the upper portion 32 of the barrier module 12x above a top 29 of the body 36 of the barrier module 12x, as shown in
For example, in another embodiment, at least part of the add-on mass 70 may be disposed in the base portion 30 of the barrier module 12x below a bottom 31 of the body 36 of the barrier module 12x, as shown in
The add-on mass 70 may further comprise frictional members 206 configured to increase the friction between the add-on mass 70 and the roadway 13 such that the barrier module 12x may further resist deflection upon impact from the impacting vehicle 19. The frictional members 206 may be configured similarly to the frictional members 106 discussed above.
In yet another embodiment, the add-on mass 70 may be a first add-on mass 701 and the barrier module 12x may comprise a second add-on mass 702 connected to the body 36 of the barrier module 12x to increase the weight of the barrier module 12x. For example, as shown in
In yet another example, as shown in
In another embodiment, the add-on mass 70 may comprise a drain 68 to drain water on the roadway 13. As shown in
The drain 68 of the add-on mass 70 may allow for adjustment of a height of a center of gravity of the barrier module 12x.
The add-on mass 70 may be implemented in any suitable way. For example, in some embodiments, the add-on mass 70 may comprise concrete 138 (e.g., concrete casting).
In some other embodiments, the add-on mass 70 comprises a container 150 configured to contain a substance 252. The container 150 has a hollow interior 154.
In various examples of implementation, the substance 252 may be a liquid (e.g., water), sand, gravel, concrete (e.g., poured-in-place concrete), foam (e.g. solid foam), or any other suitable substance (e.g., to add mass, provide cushioning upon impact, etc.).
In some embodiments, the substance 252 may be a first substance 252i and the container 150 may comprise a second substance 252j contained in the container 150.
The container 150 of the add-on mass 70 may be implemented in any suitable way.
In this embodiment, the container 150 comprises polymeric material 159. For instance, the polymeric material 159 may include polyethylene, (high, medium or low density), acrylonitrile butadiene styrene (abs), polystyrene, polypropylene, polyurethane (PU), ethylene-vinyl acetate (EVA), nylon, polyester, vinylester, polyvinyl chloride, polycarbonate, and/or any other thermoplastic or thermosetting polymer, or any other suitable polymer. In some examples, the polymeric material 59 may be reinforced (e.g., composite material). For example, the polymeric material 59 may be fiber-reinforced polymeric material comprising fibers disposed in a polymeric matrix. For instance, in some embodiments, the polymeric matrix may include any suitable polymeric resin, such as a thermoplastic or thermosetting resin, like epoxy, polyethylene, polypropylene, acrylic, thermoplastic polyurethane (TPU), polyether ether ketone (PEEK) or other polyaryletherketone (PAEK), polyethylene terephthalate (PET), polyvinyl chloride (PVC), poly(methyl methacrylate) (PMMA), polycarbonate, acrylonitrile butadiene styrene (ABS), nylon, polyimide, polysulfone, polyamide-imide, polyurethane, or any other suitable resin, and the fibers may include carbon fibers, glass fibers, polymeric fibers such as aramid fibers (e.g., Kevlar fibers), boron fibers, silicon carbide fibers, metallic fibers, ceramic fibers, etc.
In this example of implementation, the container 150 is molded. More particularly, in this example, the container 150 is rotomolded or otherwise molded to create its hollow interior 154. In other examples of implementation, the container 150 may include portions formed separately and assembled together (e.g., by being bonded, welded, mechanically fastened, etc.)
The add-on mass 70 may be affixed to the body 36 of the barrier module 12x in any suitable manner. For example, the add-on mass 70 may be affixed to the body 36 of the barrier module 12x with mountings 112. For example, the mountings 112 may comprise reinforcing steel (i.e. rebar), cement anchors, chemical anchors or any other type of suitable mountings.
In some embodiments, as shown in
For example, in some embodiments, the limiter 80 may be configured to limit pivoting of the barrier module 12x relative to the adjacent barrier module 12j to no more than an angle allowing the barrier 10 to be transferred by the conveyor 22 of the transfer vehicle 20.
In some embodiments, the limiter 80 may be configured to limit pivoting of the barrier module 12x relative to the adjacent barrier module 12j to no more than 24°, in some cases to no more than 22°, in some cases to no more than 20°, and in some cases even less (e.g. no more than 10°, in some case no more than 5°, in some cases no more than 3° and in some cases no more than 1°).
The limiter 80 may be implemented in any suitable way in various embodiments. It may comprise one or more parts, which may include any suitable material, such as metallic material, elastomeric material, concrete, wood, or another suitable material. In some embodiments, the limiter may include any suitable combination of materials.
For example, in some embodiments, as shown in
As shown in
The limiter 80 is configured to be in the locked state when the barrier module 12x and the adjacent barrier module 12j are stationary on the roadway and the limiter 80 is configured to be in the unlocked state when the barrier module 12x and the adjacent barrier module 12j are engaged by the transfer vehicle 20 for transfer between the different locations L1, L2 on the roadway 13. The limiter 80 is configured to acquire the unlocked state in response to engaging the conveyor 22 of the transfer vehicle 20 and to acquire the locked state in response to disengaging the conveyor 22 of the transfer vehicle 20.
In one embodiment, the limiter 80 may comprise a locking member 84 configured to engage the body 36 of the barrier module 12x and the body 36 of the adjacent barrier module 12j when the limiter 80 is in the locked state and to disengage the body 36 of the barrier module 12x and the body 36 of the adjacent barrier module 12j when the limiter 80 is in the unlocked state. The locking member 84 is configured to engage the body 36 of the barrier module 12x in the base portion 30 of the barrier module 12x and the body of the adjacent barrier module 12j in the base portion 30 of the adjacent barrier module 12j when the limiter 80 is in the locked state.
The body 36 of each of the barrier modules 12x, 12j comprises a void 85, as shown in
The body 36 of the barrier module 12x may comprise a reinforcement 87 defining at least part of the void 85 of the body 36 of the barrier module 12x. The reinforcement 87 may be comprised of any suitable material. For example, the reinforcement 87 may comprise a metallic material.
The locking member 84 is disposed in the void 85 of the body 36 of the barrier module 12x and the body of the adjacent of the barrier module 12j when the limiter 80 is in the locked state. The locking member 84 is movable relative to the void 85 of the body 36 of the barrier module 12x and the body 36 of the adjacent of barrier module 12j when the limiter 80 changes between the locked state and the unlocked state. The locking member 84 clears the void 85 of the body 36 of the barrier module 12x and the void 85 of the body 36 of the adjacent barrier module 12j when the limiter 80 is in the unlocked state.
The limiter 80 may comprise a biasing member 82 configured to bias the limiter 80 in the locked state. For example, the biasing member 82 may comprise a spring 83. The biasing member 82 is configured to bias the locking member 84 into engagement with the body 36 of the barrier module 12x and the body 36 of the adjacent barrier module 12j.
In one embodiment, the limiter 80 may comprise an actuator 88 configured to change the limiter 80 between the locked state and the unlocked state. As shown in
As shown in
In another example of implementation, the body 36 of the barrier modules 12x, 12j may comprise a channel 114. The channel 114 may be located in the void 85 of the body 36 of the barrier modules 12x, 12j. The locking member 84 is configured to engage the channel 114 of the body 36 of the barrier modules 12x, 12j when the limiter 80 is in the locked state. The locking member 84 is configured to disengage the channel 114 of the body 36 of the barrier modules 12x, 12j, when the limiter 80 is in the unlocked state.
In some embodiments, as shown in
More particularly, in this embodiment, the barrier module 12x comprises a blocking member 92 that is connected to the body 36 of the barrier module 12x and extends into the recess 90 of the roadway 13 to protect against a moment M tending to tip over of the body 36 of the barrier module 12x when the barrier 10 is impacted by the impacting vehicle 19. As such, the blocking member 92 extends into the recess 90 to protect against tipping over of the body 36 of the barrier module 12x. For instance, in this example, the blocking member 92 of the barrier module 12x is configured to engage a blocking portion 93 of the recess 90 of the roadway 13 when the barrier 10 is impacted. This may help to minimize or avoid deflection of the barrier 10.
In one embodiment, the blocking member 92 is disposed on an impact side 121 of the barrier module 12x such that the moment M causes a non-impact side 125 of the barrier module 12x to rotate into the roadway 13 such that the impact side 121 of the barrier module 12x tends to rotate rather than tending to tip over.
In one embodiment, as shown in
In another embodiment, as shown in
In some embodiments, a material 15 of the body 36 of the barrier module 12x contacts and is different from a material 21 of the blocking member 92 of the barrier module 12x. For instance, the material 15 of the body 36 of the barrier module 12x is concrete and the material 21 of the blocking member 92 of the barrier module 12x is a metallic material.
As shown in the illustrated embodiment of
In this embodiment, the limiter 80 includes the plurality of limiting elements 180 of the barrier module 12x and the plurality of limiting elements 180 of the adjacent barrier module 12j.
In this embodiment, the limiting elements 180 of the barrier module 12x are movable towards the limiting elements 180 of the adjacent barrier module 12j such that at least one of the plurality of limiting elements 180 of the barrier module 12x is configured to contact at least one of the plurality of limiting elements 180 of the adjacent barrier module 12j when the barrier module 12x and the adjacent barrier module 12j pivot relative to one another, as the barrier 10 is impacted or transferred, to stop their relative motion (as shown in
In other embodiments, the limiting elements 180 may be secured to the barrier module 12x or the adjacent barrier module 12j in any suitable fashion other than by being integrally formed therewith. For example, the plurality of limiting elements 180 may be mechanically fastened to the body 36 of the barrier module 12x or the adjacent barrier module 12j with screws, bolts or other mechanical fasteners.
The limiter 80 may be implemented in any suitable way in various embodiments. It may comprise one or more parts, which may include any suitable material, such as metallic material, elastomeric material, concrete, wood, or another suitable material. In some embodiments, the limiter 80 may include any suitable combination of materials.
In some embodiments, as shown in
The force-exerting system 69 of the barrier module 12x may be implemented in any suitable way in various embodiments.
For example, in some embodiments, as shown in
The force-exerting system 69 comprises at least part of a vacuum pump 75 to create the vacuum 74. The force-exerting system 69 also comprises a coupling 72 configured to be connected to the vacuum pump 75 to create the vacuum 74.
In certain embodiments, the force-exerting system 69 is configured to reduce air pressure between barrier module 12x and the surface 17 of the roadway by at least 3 psi, in some cases at least 6 psi, in some cases at least 8 psi, and in some cases at least 10 psi.
In certain embodiments, the force-exerting system 69 may be configured such that if the vacuum 74 between the barrier module 12x and the surface 17 of the roadway is broken, the vacuum 74 between the adjacent barrier module 12j and the surface 17 of the roadway remains unaffected. For example, the vacuum 74 may be provided only between alternating barrier modules 121-12n and the surface 17 of the roadway.
In some embodiments, as shown in
For example, in one embodiment, the magnetic member 76 of the force-exerting system 69 may comprise an electromagnet 77. In this embodiment, the magnetic member 71 of the surface 17 of roadway 13 would comprise a ferromagnetic material 78. As such, the magnetic force is generated by the magnetic interaction between the electromagnet 77 comprised by the magnetic member 76 of the force-exerting system 69 and the ferromagnetic material 78 of the magnetic member 71 of the roadway 13. In one embodiment, the ferromagnetic material 78 of the magnetic member 71 of the surface 17 of the roadway 13 may be comprised of a steel mass 79.
In another embodiment, the magnetic member 76 of the force-exerting system 69 may comprise the ferromagnetic material 78 and the magnetic member 71 of the surface 17 of the roadway 13 may comprise the electromagnet 77.
The force-exerting system 69 may be configured such that the loss of nongravitational downward force Fd on the barrier module 12x generated by the magnetic interaction between the magnetic member 76 of the force-exerting system 69 and the magnetic member 71 of the roadway 13 does not affect the nongravitational downward force Fd on the barrier module 12j.
In some embodiments, as shown in
Each of the shields 1311-1314 comprises material 118 that has greater impact resistance (e.g., is stiffer, stronger, and/or more ductile, etc.) than material of the body 36 of the barrier module 12x. In this embodiment, the body 36 of the barrier module 12x comprises concrete 38 and thus each of the shields 1311-1314 protects the concrete 38 and its material 118 is more resistant to impact than the concrete 38. For example, in this embodiment, the material 118 of each of the shields 1311-1314 is metallic material (e.g., steel). The material 118 of each of the shields 1311-1314 may be polymeric material (e.g., polycarbonate, high-density polyethylene, etc.), composite material (e.g., fiber-reinforced polymeric material), or any other suitable material in other embodiments.
In certain embodiments, the material 118 of each of the shields 1311-1314 may have a modulus of elasticity of at least 100 MPa, in some cases at least 1000 MPa, in some cases at least 50 GPa, in some cases at least 100 GPa, and in some cases at least 200 GPa. The material 118 of each of the shields 1311-1314 may have a hardness in some cases of at least Shore 10D, in some cases at least Shore 40D, in some cases at least Shore 60D, or in some cases at least Shore 80D. Other values and ranges for the modulus of elasticity and the hardness of the material 118 of each of the shields 1311-1314 are possible.
In this embodiment, the shields 1311-1314 are corner shields disposed at respective ones of lower corners 1351-1354 of the body 36 of the barrier module 12x. The shields 1311-1314 may be disposed elsewhere about the body 36 of the barrier module 12x in other embodiments (e.g., extend along substantial parts of edges of the body 36 of the barrier module 12x, disposed about areas of the body 36 of the barrier module 12x likely to engage the conveyor 22 of the transfer vehicle 20). For example, in the illustrated embodiment of
The shields 1311-1314, 1315 may be affixed to the body 36 of the barrier module 12x in any suitable way. In this embodiment, the shields 1311-1314, 1315 are affixed to the body 36 of the barrier module 12x during molding of the concrete 38 into the body 36 of the barrier module 12x. The shields 1311-1314, 1315 are placed in a mold in which the concrete 38 is poured to form the body 36 of the barrier module 12x and retain the shields 1311-1314, 1315 therewith. In one example of implementation of this embodiment, the shield 1315 may be integrated with the brace 40.
In other embodiments, the shields 1311-1314 may be affixed to the body 36 of the barrier module 12x after molding of the concrete 38 into the body 36 of the barrier module 12x, such as by bending them about the body 36, adhesively bonding them to the body 36, chemically fastening them to the body 36 with chemical anchors, mechanically fastening them to the body 36 with screws or other mechanical fasteners, etc.
In some embodiments, the barrier module 12x may at least partly comprise a material 91 configured to optimise friction force between an impacting vehicle 19 and the barrier module 12x. This may minimize barrier deflection when the barrier 10 is impacted by an impacting vehicle 19 and thus may increase performance of the barrier 10 in accordance with evaluation criteria of the MASH test no. 3-11. In one example of implementation of this embodiment, the body 36 of the barrier module 12x comprises lateral surfaces 1021, 1022 which may include the material 91. The material 19 may comprise any suitable material. For example, the material 91 may comprise ultra-high molecular weight polyethylene (UHMW), high density polyethylene (HDPE), polytetrafluoroethylene (PTFE) such as Teflon®.
2. Mitigating Risks of Excessive Upward Movement of Impacting Vehicle
In some embodiments, as shown in
For example as shown in
In one embodiment, the reinforcement 35i, 35j of the barrier module 12x projects into an area of traffic flow of the roadway 13.
In another embodiment, the reinforcement 35j, 35j of the barrier module 12x may comprise a guardrail 104. The barrier module 12x may comprise a bracket 105 connecting the guardrail 104 to the body 36 of the barrier module 12x.
In some embodiments, respective ones of the barrier modules 121-12N may be taller to reduce potential for impacting vehicles to pass over them. For example, in some embodiments, a height of the barrier module 12x may be any suitable value, in some cases at least 32 inches, or in some case at least 42 inches.
In some examples of implementation, as shown in
For example, in one embodiment, the heightener 110 may be connected to the body 36 of the barrier module 12x in the base portion 30 of the barrier module 12x. In another embodiment, the heightener 110 may be connected to the body 36 of the barrier module 12x in the upper portion 32 of the barrier module 12x.
3. Enhanced Crash Cushion at End of Barrier
In some embodiments, as shown in
For example, in some embodiments, the barrier module 12x is taller than downstream ones of the barrier modules 121-12N. For instance, in some embodiments, a ratio of a height of barrier module 12x over a height of the downstream ones of the barrier modules 121-12N is at least 1.1, in some cases at least 1.2, in some cases at least 1.3, and in some cases even greater. In other embodiments, the barrier module 12x is the same height as the downstream ones of the barrier modules 121-12N.
In this embodiment, the barrier module 12x comprises an end member 120 connected to its body 36. In this example, a front surface 123 of the end member 120 of barrier module 12x is straight in a heightwise direction HB of the barrier module 12x.
The end member 120 may comprise a rigid material 122 that is more rigid than the polymeric material 259 of the body 36 of the barrier module 12x. For example, the rigid material 122 may be a metallic material.
The end member 120 of the barrier module 12x is configured to collapse about a bumper 18 of the impacting vehicle 19 that impacts the end member 120 of the barrier module 12x. The body 36 of the barrier module 12x is configured to collapse about the bumper 18 of the impacting vehicle 19.
In one embodiment, the body 36 of the barrier module 12x comprises a brace 140 extending to the end member 120 of the barrier module 12x. As shown in
In another embodiment, as shown in
In another example of implementation, as shown in
The number of barrier modules 12x forming the crash cushion 119 may vary depending on the speed of traffic flow and the particular application. For example, in some cases 2 barrier modules 12x may be provided, in some other cases 12 barrier modules 12X may be provided. Any suitable number of barrier modules 12X may be provided to form the crash cushion 119.
In some embodiments, a weight of the content of the container 450 of the first barrier module 12x may be different from a weight of the content of the container 450 of the second barrier module 12j.
For example, the weight of the content of the container 450 of the first barrier module 12x may be less than the weight of the content of the container 450 of the second barrier module 12j.
A quantity of the substance 452 contained in the container 450 of the first barrier module 12x may be different from a quantity of the substance 452 contained in the container 450 of the second barrier module 12j.
The rigidity of the container 450 may be adjusted by the substance contained in the container (e.g., liquid, concrete, sand, air, foam, etc.). The rigidity may be adjusted in order to pass the MASH requirements for crash cushions. The rigidity of the container 450 may be adjusted as a function of its application. For example, the substance 452 contained in the container 450 may be concrete, sand or gravel and the barrier modules 121-12N may be used a barrier. In another example, the substance 452 contained may be water or foam and the barrier modules 121-12N may be used as a crash cushion.
The container 450 may be modified as a function of its application. For example, the container 450 of the barrier modules 121-12N initially functioning as a crash cushion may be modified such that the barrier modules 121-12N may to function as a barrier 10. For example, the container 450 may be modified to implement include the brace 40 including a plurality of bracing members 421-42B (including the tie rods 1241, 1242) or connecting members 55x or other components.
The substance 452 contained in the container 450 may also adjust other characteristics of the container 450 (e.g., density, location of the center of gravity, weight).
The barrier modules 121-12N forming the crash cushion 119 are configured to be engaged by the conveyor 22 of the transfer vehicle 20 to lift and move the barrier modules 121-12N.
In some embodiments, as shown in
Notably, the respective ones of the barrier modules 121-12N differing in height may be several ones of the barrier modules 121-12N, i.e., at least three of the barrier modules 121-12N. In some embodiments, the respective ones of the barrier modules 121-12N may be at least four of the barrier modules 121-12N, in some cases at least five of the barrier modules 121-12N, in some cases at least six of the barrier modules 121-12N, in some cases at least seven of the barrier modules 121-12N, and in some cases even more of the barrier modules 121-12N.
In this embodiment, terminal barrier modules 121-127 implement the crash cushion 119, main barrier modules 1213-12N are located aft (i.e., downstream) of the terminal barrier modules 121-127, and transition barrier modules 128-1212 are shorter than the terminal barrier modules 121-127 and taller than the main barrier modules 1213-12N to form a transition 145 between the terminal barrier modules 121-127 and the main barrier modules 1213-12N. Accordingly, the transition 145 from a tallest one of the barrier modules 121-12N (i.e., a tallest one of barrier modules 121-127) to a shortest one of the barrier modules 1213-12N (i.e., a shortest one of barrier modules 1213-12N) occurs over the transition barrier modules 128-1212.
Moreover, in some embodiments, the transition 145 from a tallest one of the barrier modules 121-12N (i.e., one of barrier modules 121-127) to a shortest one of the barrier modules 1213-12N (i.e., one of barrier modules 1213-12N) occurs over a plurality of meters. For example, in some embodiments, the transition 145 may occur over at least 3 m, in some cases over at least 4 m, in some cases over at least 5 m, in some cases over at least 6 m, in some cases over at least 7 m, in some cases over at least 8 m, in some cases over at least 9 m, and in some cases over at least 10 m.
A width WT of the transition 145 may have any suitable value. For example, in one embodiment, the width WT of the transition 145 may be at least 18 inches. In another embodiment, the width WT of the transition may be at least 24 inches.
In some embodiments, as shown in
In some cases, the respective ones of the barrier modules 121-12N differing in height may gradually vary in height. As such, the respective ones of the barrier modules 121-12N may linearly vary in height.
For example, in some embodiments, a ratio of the height of a taller one of the barrier modules 121-12N over the height of a shorter one of the barrier modules 121-12N that is adjacent to the taller one of the barrier modules 121-12N may be no more than 1.1 in some cases no more than 1.05, and in some cases no more than 1.03. This ratio may have other suitable values.
In yet another example, in some embodiments, a ratio of the height of a tallest one of the barrier modules 121-127 over the height of a shortest one of the barrier modules 1213-12N may be at least 1.1, in some cases at least 1.15, in some cases at least 1.2, in some cases at least 1.25, in some cases at least 1.3, and in some cases even more. This ratio may have other suitable values.
The barrier modules 121-12N may be configured such that a given barrier module 12x of the barrier modules 121-12N is adjustable to adjust the height of the given barrier module 12x. More particularly, the given barrier module 12x may comprise an adjustment system 143 configured to move parts 144, 146 of the given barrier module 12x relative to one another to adjust the height of the given barrier module 12x. The adjustment system 143 will be described below with respect to the given barrier module 12x, however it should be appreciated that any number of barrier modules 121-12N may comprise the adjustment system 143.
In one example of implementation of this embodiment, as shown in
In this case, as shown in 77A, 77B and 77C, the adjustment system 143 is configured to move the parts 144, 146 of the given barrier module 12x relative to one another in a plurality of predetermined positions Px to adjust the height of the given barrier module 12x. As shown in in
In this example of implementation, as shown in
As shown in
In another example of implementation of this embodiment, as shown in
In this case, the adjustment system 143 is configured to move the part 144 of the given barrier module 12x relative to the part 146, and the position of the part 144 may not be adjusted between predetermined positions but rather in a continuous range of essentially infinite positions.
In this example of implementation, the adjustment system 143 comprises a plurality of openings 147 spaced apart in a lengthwise direction LM of the given barrier module 12x. The openings 147 are configured to receive fasteners 148 to secure the parts 144, 146 of the given barrier modules 12x to one another to adjust the height of the given barrier module 12x. Accordingly, the openings 147 are fastening openings 149.
In some embodiments, the body 36 of one or more of the terminal barrier modules 121-127 includes the polymeric material 259 and the body 36 of one or more of the main barrier modules 1213-12N includes concrete 38. For example, in some cases, the body 36 of each of the terminal barrier modules 121-127 includes the polymeric material 259 and the body 36 of each of the main barrier modules 1213-12N includes concrete 38.
In other embodiments, the body 36 of one or more of the barrier modules 121-12N includes a metallic material 101. For example, in some cases, the body 36 of each of the barrier modules 121-12N includes the metallic material 101. The metallic material 101 may comprise any suitable metallic material such as steel, aluminum or other suitable metal.
In some embodiments, the body 36 of a first one of the barrier modules 121-12N includes a first material and the body 36 of a second one of the barrier modules 121-12N includes a second material different form the first material. For instance, in some embodiments, the second material may be harder than the first material. In one example of implementation of once such embodiment, the body 36 of the first one of the barrier modules 121-12N may be concrete 38 and the body 36 of the second one of the barrier modules 121-12N may be the polymeric material 259. Additionally, in some embodiments, the body 36 of a third one of the barrier modules 121-12N may include a third material which is different from the first material and the second material.
In yet another example of implementation of this embodiment, the body 36 of a first one of the transition barrier modules 127-1212 may comprise a first material and the body 36 of a second one of the transition barrier modules 127-1212 may comprise a second material. For instance, the body 36 of the first one of the transition barrier modules 127-1212 may comprise concrete 38 and the body 36 of the second one of the transition barrier modules 1212 may comprise the metallic material 101.
Additionally, in some embodiments, one or more of the transition barrier modules 128-1212 may comprise a ballast 103 to adjust a mass of one or more of the transition barrier modules 128-1212. For example, in this embodiment, each of the transition barrier modules 128-1212 may comprise the ballast 103.
In one example of implementation of this embodiment, as shown in
In various examples of implementation, the substance 352 may be a liquid (e.g., water), sand, gravel, concrete (e.g., poured-in-place concrete), foam (e.g. solid foam), or any other suitable substance. In other examples of implementation, the ballast 103 of one or more of the transition barrier modules 128-1212 comprises a metallic add-on mass 370, as shown in
In yet other embodiments, the given one of the barrier modules 12x may have any shape configured to reduce a tendency for the impacting vehicle 19 to vault or snag.
For example, a given barrier module 12x adjacent the transition 145 (e.g., the transition barrier module 127 shown in
In some embodiments, as shown in
More particularly, in some embodiments, the conveyor-engaging part 33 of at least one of the barrier modules 121-12N may be at least partly inclined relative to a longitudinal direction LB of the barrier 10.
In other embodiments, as shown in
Accordingly, in some embodiments, the conveyor-engaging part 33 of at least one of the barrier modules 121-12N is horizontal relative to a longitudinal direction LB of the barrier 10.
The transition 145 may be implemented in any other suitable way in other embodiments.
For example, in some embodiments, the height of the transition barrier modules 128-1211 may correspond to the height of one of the terminal barrier modules 121-126 or the main barrier modules 1212-12N, and the conveyor-engaging part 33 of each of the transition barrier modules 128-1212 is configured to be positioned to form the transition 145 between the terminal barrier modules 121-127 and the main barrier modules 1213-12N.
For instance, in some embodiments, as shown in
With additional reference to
The powertrain 72 is configured to generate power for the transfer vehicle 20, including motive power for the wheels 164 to propel the transfer vehicle 20 on the roadway 13. To that end, the powertrain 156 comprises a power source (e.g., a primer mover) that includes one or more motors. For example, in some embodiments, the power source of the powertrain 156 may comprise an internal combustion engine, an electric motor (e.g., powered by a battery), or a combination of different types of motor (e.g., an internal combustion engine and an electric motor). The powertrain 156 can transmit power from the power source to one or more of the wheels 164 in any suitable way (e.g., via a transmission, a differential, a shaft engaging (i.e., directly connecting) a motor and a given one of the wheels 164, etc.).
The steering system 163 is configured to steer the transfer vehicle 20 on the roadway 13. In this embodiment, the steering system 163 is configured to turn front ones and/or rear ones of the wheels 164 to change their orientation relative to the frame 155 of the transfer vehicle 20 in order to cause the transfer vehicle 20 to move in a desired direction.
The cabin 165 is configured to be occupied by one or more occupants of the transfer vehicle 20. In this embodiment, the cabin 165 comprises a user interface 166 configured to interact with one or more occupants of the vehicle and comprising an input portion that includes one or more input devices (e.g., a set of buttons, levers, dials, etc., a touchscreen, a microphone, etc.) allowing an occupant of the transfer vehicle 20 to input commands and/or other information into the transfer vehicle 20 and an output portion that includes one or more output devices (e.g., a display, a speaker, etc.) to provide information to an occupant of the transfer vehicle 20. The output portion of the user interface 166 may comprise an instrument panel (e.g., a dashboard) which provides indicators (e.g., a speedometer indicator, a tachometer indicator, etc.) related to operation of the transfer vehicle 20.
In some embodiments, to control the conveyor 22 to transfer the respective ones of the barrier modules 121-12N differing in height, the control system 157 is configured to move the conveyor 22 vertically relative to the surface 17 of the roadway 13, (i.e., along the double arrow shown in
More particularly, in this embodiment, the control system 157 comprises an actuator 158 configured to move the conveyor 22 and the controller 160 is configured to control the actuator 158 based on information regarding the barrier 10 that is indicative of heights of given ones of the barrier modules 121-12N.
In some embodiments, the actuator 158 comprises a linear actuator such as an electromechanical linear actuator. In other embodiments, the actuator 158 may be implemented in any other suitable way. For instance, in other embodiments, the actuator 158 may comprise a fluidic actuator, such as a hydraulic or pneumatic actuator, or may comprise a motor, such as an electric motor, or other rotary actuator.
In one example of implementation of this embodiment shown in
Additionally or alternatively, in some embodiments, to move the conveyor 22 vertically relative to the surface 17 of the roadway 13, the control system 157 may be configured to move the conveyor 22 vertically relative to the frame 155.
In some embodiments, the controller 160 is configured to receive at least part of the information regarding the barrier 10 from a user, such as via the user interface 166 of the transfer vehicle 20.
In some embodiments, the controller 160 is configured to receive at least part of the information regarding the barrier 10 from one or more sensors 161 in order to control the actuator 158 based on the information indicative of the height of each of respective ones of the barrier modules 121-12N.
In some examples, the control system 157 may comprise at least one of the one or more sensors 161. Additionally or alternatively, the barrier 10 may comprise at least one of the one or more sensors 161. Thus, the control system 157 and/or the barrier 10 may comprise given ones of the one or more sensors 161.
The one or more sensors 161 configured to sense information regarding the barrier 10 (e.g., an absolute height of each of respective ones of the barrier modules 121-12N, a relative position of each of respective ones of the barrier modules 121-12N to the conveyor 22, frame 155 or other datum of the transfer vehicle 20). The one or more sensors 161 may include any suitable sensing device. For example, in some embodiments, the one or more sensors 161 may comprise: one or more passive sensors such as a camera, a sound sensor, a light sensor, etc.; one or more active sensors such as a lidar (light detection and ranging), a radar sensor, an ultrasonic sensor, etc.; and/or any other sensing device.
The one or more sensors 161 may also be configured to sense information other than information indicative of the height of each of respective ones of the barrier modules 121-12N. For example, the one or more sensors 161 may be configured to sense information regarding a position of each of respective ones of the barrier modules 121-12N on the roadway 13. In yet another example, the one or more sensors 161 may be configured to sense information indicative of whether respective ones of the barrier modules 121-12N are engaged by the conveyor 22 of the transfer vehicle. In yet another example, the one or more sensors 161 may configured to sense information indicative of whether a given barrier module 12x is an end one of the barrier modules 121-12N.
In this embodiment, the controller 160 is a processing apparatus that comprises an interface 167, a processing entity 168, and memory 170, which are implemented by suitable hardware and software.
The interface 167 comprises one or more inputs and outputs (e.g., an input/output interface) allowing the controller 160 to receive input signals from and send output signals to other components to which the controller 160 is connected (i.e., directly or indirectly connected), including the actuator 158, and possibly other components such as the user interface 167 of the transfer vehicle 20 and the one or more sensors 161. The controller 160 may communicate with other components of the transfer vehicle 20 via a vehicle bus (e.g., a Controller Area Network (CAN) bus or other suitable vehicle bus). Connections between the interface 167 and other components may be wired or wireless (e.g., Bluetooth, WiFi, RFID, cellular, etc.).
The processing entity 168 comprises one or more processors for performing processing operations that implement functionality of the controller 160. A processor of the processing entity 168 may be a general-purpose processor executing program code stored in the memory 170. Alternatively, a processor of the processing entity 168 may be a specific-purpose processor comprising one or more preprogrammed hardware or firmware elements (e.g., application-specific integrated circuits (ASICs), electrically erasable programmable read-only memories (EEPROMs), etc.) or other related elements.
The memory 170 comprises one or more memory elements for storing program code executed by the processing entity 168 and/or data (e.g., maps, vehicle parameters, etc.) used during operation of the processing entity 168. A memory element of the memory 170 may be a semiconductor medium (including, e.g., a solid-state memory), a magnetic storage medium, an optical storage medium, and/or any other suitable type of memory. A memory element of the memory 170 may include a read-only memory (ROM) element and/or a random-access memory (RAM) element, for example.
In some embodiments, the controller 160 may be associated with (e.g., comprise and/or interact with) one or more other control units of the transfer vehicle 20. For example, in some embodiments, the controller 160 may comprise and/or interact with a powertrain control unit of the powertrain 156, such as an engine control unit (ECU), a transmission control unit (TCU), etc.
In some embodiments, as shown in
At step 910, the control system 157 receives information regarding the barrier 10 that is indicative of the heights of given ones of the barrier modules 121-12N.
In some embodiments, the information may be preprogrammed during a provisioning phase of the conveyor 22 moving the barrier modules 121-12N from the first location L1 to the second location L2 at the roadway 13. For example, the operator of the transfer vehicle 20 may input this information via the user interface 166 of the transfer vehicle 20. In another example, an off-site operator may input this information at a distance from the transfer vehicle 20 (e.g., over a data network such as the internet, a local area network, a wireless network, a combination of such networks or still other forms of data networks).
In such embodiments, the information may be indicative of the length of the barrier 10, including a length of each of one or more segments thereof. For example, the information indicative of the length of the barrier 10 may include information indicative of a length of the crash cushion 119 including terminal barrier modules 121-127, a length of the transition 145 including the transition barrier modules 128-1212, and a length of a main segment including the main barrier modules 1213-12N. Additionally or alternatively, the information may be indicative of a slope of the transition 145 of the barrier 10, for example, including the slope of the barrier modules 121-12N. In some cases, the information indicative of the slope of the barrier 10 may comprise information indicative of a slope of the inclined part 58 of the barrier modules 121-12N.
In other such embodiments, the information may be indicative of a number of barrier modules 121-12N in the barrier 10, for example, the number of the terminal barrier modules 121-127, the transition barrier modules 128-1212 and the main barrier modules 1213-12N. The information may also be indicative of a length of respective ones of the barrier modules 121-12N in the barrier 10, for example, a length of respective ones of the terminal barrier modules 121-127, the transition barrier modules 128-1212 and the main barrier modules 1213-12N.
In other embodiments, the control system 157 receives the information indicative of the heights of the barrier modules 121-12N from the one or more sensors 161. In such cases, the information may be received over a data network (e.g., the internet, a local area network, a wireless network, a combination of such networks or still other forms of data networks).
At step 920, the control system 157 is configured to control the transfer vehicle 20, including by adjusting the conveyor 22, based on the information regarding the barrier 10 to transfer the barrier modules 121-12N between the first location L1 to the second location L2 at the roadway 13.
Adjusting the conveyor 22 may include causing the actuator 158 to move the conveyor 22 of the transfer vehicle 20 vertically relative to the surface 17 of the roadway 13 such that the conveyor 22 may engage the conveyor-engaging part 33 of the barrier modules 121-12N differing in height.
In some embodiments, the control system 157 is configured to regulate a speed of the transfer vehicle 20 prior to, during, and after engagement of the conveyor-engaging part 33 of the barrier modules 121-12N differing in height and the conveyor 22 such that the barrier modules 121-12N may be transferred between the first location L1 to the second location L2 at the roadway 13 based on the motion of the transfer vehicle 20.
In embodiments in which the information is preprogrammed during the provisioning phase described above, the speed of the transfer vehicle 20 may also be preprogrammed during the provisioning phase.
In embodiments in which the control system 157 receives the information being indicative of the height of the barrier modules 121-12N from the one or more sensors 161 as described above, the speed of the transfer vehicle 20 may be regulated as the information is received from the one or more sensors 161.
In yet other embodiments, the speed of the transfer vehicle 20 may be regulated by the operator of the transfer vehicle 20.
The control system 157 may operate in any other suitable way, including by controlling the conveyor 22 and/or the transfer vehicle 20 in any other suitable way, in other embodiments.
4. Hybrid Barrier Module
In some embodiments, as shown in
In this embodiment, the concrete 38 of the body 36 of the barrier module 12x may constitute no more than half of the weight of the barrier module 12x, in some cases less than half of the weight of the barrier module 12x, and in some cases no more than one-third of the weight of the barrier module 12x.
The first container 2501 overlies a first lateral surface 611 of the concrete 38 of the body 36 of the barrier module 12x. The second container 2502 of the barrier module 12x overlies a second lateral surface 612 of the concrete 38 of the body 36 of the barrier module 12x that is opposite to the first lateral surface 611 of the concrete 38 of the body 36 of the barrier module 12x.
In some embodiments, a brace 240 of the body 36 may be connected to the concrete 38 of the body 36 of the barrier module 12x. The brace 240 may be at least partly embedded in the concrete 38.
In various examples of implementation, the substance 552 may be a liquid (e.g., water), sand, gravel, concrete (e.g., poured-in-place concrete), foam (e.g. solid foam), or any other suitable substance (e.g., to add mass, provide cushioning upon impact, etc.). In this embodiment, the brace 40 of the barrier module 12x is at least partly embedded in the substance 552 contained in the containers 2501, 2502.
In this example of implementation, the containers 2501, 2502 are molded. More particularly, in this example, the containers 2501, 2502 are rotomolded or otherwise molded to create a hollow interior 254. In other examples of implementation, the containers 2501, 2502 may include portions formed separately and assembled together (e.g., by being bonded, welded, mechanically fastened, etc.)
5. Additional Implementations
The shell 60 of the container 50 of the body 36 of the barrier module 12x may be implemented in various other ways in other embodiments.
In some embodiments, as shown in
More particularly, in this embodiment, the subshells 1201-1203 of the shell 60 of the barrier module 12x are fastened together via fasteners 124 (e.g., bolts, screws, or other threaded fasteners). In other embodiments, the subshells 1201-1203 of the shell 60 of the barrier module 12x may be secured by other suitable means such as welding or forging. In this example, a top one of the subshells 1201-1203, namely the subshell 1201, forms a lid of the barrier module 12x, a bottom one of the subshells 1201-1203, namely the subshell 1203, can facilitate emptying the substance 52 from the barrier module 12x, and an intermediate one of the subshells 1201-1203, namely the subshell 1202, forms a bulk of the barrier module 12x.
In this example of implementation, each of the subshells 1201-1203 is metallic (e.g., cast, forged, punched, hydroformed, or otherwise formed into shape).
In one example of implementation, an interlocking flange 129 may be included in the subshell 1201 and/or the subshell 1203 in order to facilitate assembly/dissasembly.
An opening 126 in the barrier module 12x is provided to allow the substance 52 to be introduced into the hollow interior 54 of the shell 60. The opening 126 may comprise a variety of suitable shapes (e.g., circular, rectangular, oval shape, etc.). The opening 126 may comprise any suitable size. In some embodiments, a plurality of openings may be provided.
In some embodiments, the opening 126 may be sealed to create an internal pressure build-up in the substance 52 contained in the shell 60 when the barrier module 12x is impacted by an oncoming vehicle.
In some embodiments, the shell 60 of the barrier module 12x and a shell 60 of adjacent barrier modules 12j may be connected to another. The shell 60 of the barrier module 12x and the shell 60 of the adjacent barrier module 12j may be connected to one another in any suitable fashion (e.g., mechanical fasteners such as for example bolts, interlocking flanges or guide pins).
The subshells 1201-1203 of the shell 60 of the barrier module 12x maybe fastened together in any other suitable fashion. For example, in one embodiment, the subshells 1201-1203 may be welded together.
Transportation of the shell 60 of the barrier module 12x may be optimized. For example, a recess may be provided in the subshells 1201-1203 in order to allow the barrier module 12x to be stacked on another barrier module 12N, as previously described.
The container 50 of the body 36 of the barrier module 12x may be implemented in various other ways in other embodiments.
In some embodiments, as shown in
In some embodiments, the container 50 of the body 36 of the barrier module 12x may comprise areas configured to receive counterweights to adjust the mass of the barrier module 12x. The counterweights may also adjust a location of the mass center of the barrier module 12x.
The barrier 10 (e.g., its barrier modules 121-12N) may be implemented in various other ways in other embodiments.
For example, in other embodiments, the barrier 10 may be fixed and/or permanent (e.g., such that it remains substantially stationary and/or is integrated into an infrastructure of the roadway 13). One or more features of the barrier 10 described herein when the barrier 10 is movable may be implemented when the barrier 10 is fixed and/or permanent.
Certain additional elements that may be needed for operation of some embodiments have not been described or illustrated as they are assumed to be within the purview of those of ordinary skill in the art. Moreover, certain embodiments may be free of, may lack and/or may function without any element that is not specifically disclosed herein.
Any feature of any embodiment discussed herein may be combined with any feature of any other embodiment discussed herein in some examples of implementation.
In case of any discrepancy, inconsistency, or other difference between terms used herein and terms used in any document incorporated by reference herein, meanings of the terms used herein are to prevail and be used.
Although various embodiments have been illustrated, this was for purposes of describing, but should not be limiting. Various changes, modifications and enhancements may be made.
Filing Document | Filing Date | Country | Kind |
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PCT/CA2021/050846 | 6/21/2021 | WO |
Number | Date | Country | |
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Parent | PCT/US2020/066126 | Dec 2020 | US |
Child | 18267803 | US |