Research implementation of the SMART SIGNAL system on Trunk Highway (TH) 13.

Final report.PDFTech ReportMN/RC 2013-06(C) 89261 (G) 178Traffic signal control systemsData collectionTraffic dataArterial highwaysSignalized intersectionsPerformance measurementMinnesotaMinnesota. Dept. of Transportation. Research Services SectionLiu, Henry X.Zheng, JianfengHu, HengSun, JieUniversity of Minnesota. Dept. of Civil EngineeringNTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic FlowNTL-INTELLIGENT TRANSPORTATION SYSTEMS-Arterial ManagementNTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control DevicesUS Transportation CollectionIn our previous research, the SMART-SIGNAL (Systematic Monitoring of Arterial Road Traffic and Signals)system that can collect event-based traffic data and generate comprehensive performance measures has beensuccessfully developed by the University of Minnesota. In this research, a new set of interfaces are developed forSMART-SIGNAL system including new prototypes of data collection unit (DCU) and refined web-based userinterface. To collect high resolution event-based traffic data including both vehicle detector actuation event andsignal phase change event, two types of DCUs are designed, the TS-1 DCU and TS-2 DCU for correspondingtraffic signal cabinet. TS-1 DCU connects with TS-1 cabinet using pin to pin interface, and the TS-2 DCUinterfaces directly with SDLC bus within TS-2 cabinet. The DCUs uses high performance microcontroller modules,and are compact and easy to install. Both DCUs are designed to be vender independent add-on module for trafficcabinet, and can be used as flexible solution to enhance data collection by agencies. The refined web-based userinterface features various performance measures to public users, such as Level of Service (LOS), queue length,travel time and intersection delays. The new set of interfaces have been deployed with the SMART-SIGNALsystem at 13 intersections along Trunk Highway (TH) 13 in Burnsville, MN