Use of Flashing Yellow Operations to Improve Safety at Signals with Protected-Permissive Left Turn (PPLT)Operations : Project Summary

Project summary.PDFBooklet/Pamphlet0-6568-P1Flashing traffic signalsTraffic control devicesTraffic signal hardwareTraffic signalsYellowYellow interval (Traffic signal cycle)Traffic safetyTexasTexas. Dept. of Transportation. Research and Technology Implementation OfficeQi, YiChen, XiaomingWang, YubianYuan, PeinaYu, Leipersad, Khali R.Texas Southern UniversityUniversity of Texas at Austin. Center for Transportation ResearchTexas. Dept. of TransportationUnited States. Federal Highway AdministrationNTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLSNTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control DevicesNTL-SAFETY AND SECURITY-Highway SafetyUS Transportation CollectionThe 2009 edition of the federal MUTCD suggests the use of the flashing yellow arrow (FYA) indication in lieuof the green ball indication for permissive left-turn signals in the presence of separate signal heads. Currently,there are no clear guidelines on how to implement FYA with Protected-Permissive Left Turn (PPLT) operationsin Texas. The objective of this research was to develop guidelines for the implementation of the FYA with PPLToperations that are suitable for statewide application in Texas