Claims
- 1. In a laboratory simulation of traffic including an actual traffic signal controller and a computer for simulating traffic flow at an intersection, a controller interface device for adapting traffic signal controller input signals generated by said computer for use by said traffic signal controller comprising means for receiving computer-generated signals representative of desired traffic signal controller input signals, means for converting said computer-generated signals into electrical signals, means for directing said electrical signals into said traffic signal controller, means for receiving the response of said traffic signal controller to said electrical signals, and means for sending said response of said traffic signal controller back into said computer.
- 2. A controller interface device as in claim 1 wherein said response of said traffic signal controller is converted to computer readable format.
- 3. In the method of simulating traffic flow at an intersection having a traffic signal control device by running a traffic simulation program in a computer, the improvement which comprises providing such a traffic signal control device, providing means for sending computer-generated control signals to said traffic signal control device, providing means for sending the response of said traffic signal control device to said computer-generated signals back to said computer, and integrating said response of said traffic signal control device into said traffic simulation program.
- 4. The method of claim 3 further including converting said computer-generated signals into electrical signals before sending them back into said traffic signal control device.
- 5. The method of claim 4 further including converting said response of said traffic signal control device to said computer-generated signals into computer readable format.
STATEMENT OF GOVERNMENT INTEREST
The present invention may be made or used by or for the Government of the United States without the payment of any royalties thereon or therefor.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5646853 |
Takahashi et al. |
Jul 1997 |
|