U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
| Project Information | ||
| Project ID: | FHWA-PROJ-10-0016 | |
| Project Name: | Signal Phase and Timing (SPAT) with an Intersection Collision Model (101-FH3) Small Business Innovation Research (SBIR) Phase 1 | |
| Project Status: | Completed | |
| Start Date: | March 10, 2010 | |
| End Date: | September 10, 2010 | |
| Contact Information | ||
| Last Name: | Gibson | |
| First Name: | David P | |
| Telephone: | 202-493-3271 | |
| E-mail: | david.gibson@dot.gov | |
| Office: | Office of Operations Research and Development | |
| Team: | Trans Enabling Technologies Team [HRDO-10] | |
| Program: | Small Business Innovation Program (SBIR) (2% of Adjusted CA) | |
| Project detail | ||
| Project Description: | Harmonia has developed an index of Traffic EXperimental Analytical Simulation (TEXAS) documentation, documented global variables and subroutines in Simulated Processing (SIMPRO), and added newly developed subroutines into the TEXAS documentation database. Harmonia has developed the Enhanced Traffic EXperimental Analytical Simulation (eTEXAS), a Java Application Programming Interface for the TEXAS Model. We have set up SIMPRO for compilation using free and open source software and modified the TEXAS source code to accomplish the central step of reorganizing TEXAS as a simulation library for programmatic invocation by the Connected Vehicle program or other applications. We have also implemented Java interfaces to the simulation for portability for the Society of Automotive Engineers (SAE) J2735 messages, Variable Message Signs messages, Signal Controller Messaging System (SCMS) messages, and obtaining vehicle updates. In addition, we have developed a graphical user interface for Delta Time (DT) simulation and a simplified Java version of Bonneson's dilemma zone Control Systems (D-CS) algorithm for validation of eTEXAS. Harmonia has also created a project Web site to host the free and open source eTEXAS project, which includes source code, documentation materials, and developer community facilities. | |
| Goals: |
The key project objective is to determine whether signal phase and timing (SPAT) can be simulated with an intersection collision model.
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| Product Type: | Software | |
| Test Methodology: | Test the approach using the Traffic EXperimental Analytical Simulation (TEXAS) intersection simulation model. | |
| Partners: | U.S. Department of Transportation: Research and Innovative Technology Administration (RITA); Role(s): Other stakeholder | |
| Expected Benefits: | Signal phase and timing information can smooth traffic flow towards the signalized intersection and possibly reduce the potential for yellow- and red-light running. | |
| Deliverables: | Name: Enhanced Traffic EXperimental Analytical Simulation (eTEXAS) Simulation Model Product Type(s): Software Description: Signal phase and timing (SPAT) simulation model. Publication URL(s): http://code.google.com/p/etexas/ | |
| Project Findings: | The tentative answer is that signal phase and timing (SPAT) can be simulated with an intersection collision model, and that the combined model might be useful for safety and operations research. | |
| FHWA Topics: | Road Operations and Congestion--Congestion Mitigation | |
| TRT Terms: | Traffic Signal Phases Operations Research Collisions Intersections Dilemma Zone Highway Traffic Control Traffic Signal Timing |
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| FHWA Disciplines: | Operations Safety |
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| Subject Areas: | Operations and Traffic Management Research Safety and Human Factors |
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