Safe and Efficient Pedestrian Accommodation at Coordinated Signalized Intersections

015944362016Final ReportPDFTech ReportMathematical modelsPedestrian movementPedestrian phaseSignalized intersectionsSoftwareTraffic signal control systemsTraffic signal timingTraffic simulationHighwaysOperations and Traffic ManagementPedestrians and BicyclistsPedestrian timing accommodationSignal coordinationTransition methodsUnited StatesNevadaUniversity of Nevada, Reno. Solaris University Transportation CenterTian, ZongGholami, AliUniversity of Nevada, Reno. Solaris University Transportation CenterUniversity of Nevada, Reno. Department of Civil and Environmental EngineeringUnited States. Dept. of Transportation. Research and Innovative Technology AdministrationUS Transportation CollectionThe purpose of this research is to study how pedestrian crossing timing should be considered in coordinated signal operations. A practical guideline needs to be developed to determine when accommodation (A) of pedestrian timing into coordination is preferable over non-accommodating (NA). With this guideline, practitioners input cycle length (C), volume (v), required pedestrian timing (RPT), and other signal parameters. The guideline will lead to a recommendation on whether A or NA should be used based on arterial vehicle delay. As part of the guideline development, a mathematical model was developed and validated by simulating 3,456 scenarios in VISSIM traffic simulation. Then, a software tool was created based on the mathematical model, named PeTASC (Pedestrian Timing Accommodation into Signal Coordination). A link is provided to download this free software. PeTASC can be used as a reference for an appropriate pedestrian timing design. This software can help practitioners design a better coordination plan and as a result, reduce arterial delay.78