2006PDFTech ReportFHWA-JPO-06-061Agreement No. 500013Advanced traveler information systemsIntelligent transportation systemsHighway traffic controlEmergency communication systemsWeatherEvaluation and assessment United States.Transportation Equity Act for the 21st Century (TEA-21)Traveler information systems (ATIS)Evaluation/program assessmentVariable message signs (VMS)Closed circuit television (CCT)Roadway weather information systems (RWIS)Vehicle rollover warning systemsTraffic flow detection systemsHighway advisory radio (HAR)PennsylvaniaUnited States. Dept. of TransportationPennsylvania Turnpike CommissionDMJM+HARRISCortelazzi, LouReagle, Edward C.Corey, Daniel G.DMJM+HARRISPennsylvania Turnpike CommissionUnited States. Federal Highway ...