United States Department of Transportation
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Traffic Optimization for Signalized Corridors (TOSCo): Phase 2 Modeling & Benefits Estimation – SH105 Final Report
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2022-06-30
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[PDF-20.14 MB]
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Edition:Final Report
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Abstract:This report summarizes the potential mobility and environmental benefits associated with implementing the Traffic Optimization for Signalized Corridor (TOSCo) System in simulation on the State Highway 105 corridor in Conroe, Texas. In this study, researchers integrated the TOSCo infrastructure and vehicle algorithms into a microscopic simulation model to simulate TOSCo performance under normal operating conditions. The researchers estimated potential mobility and environmental benefits under different market penetration levels during both the A.M. and P.M. peak periods. The researchers found that the TOSCo system reduces the stop delay and the number of stops on an intersection and corridor basis. The simulated version of the TOSCo system reduced total delay per vehicle at some intersections along the SH105 corridor without heavy turning movements. Intersections on the SH105 corridor with heavy turning movements and lots of weaving did experience some increases in total delay with increased TOSCo MPR. TOSCo also reduced fuel usage at most intersections, but increased fuel usage at intersections with queue spillback issues. Overall TOSCo reduced stops, stop delay, and relieved congestion-based queueing at several intersections on SH105. TOSCo simulation efforts later in Phase 2 of the project were on FM1960 in Houston, Texas because of the transition of the deployment corridor to FM 1960.
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