TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 97: Guide to Effective Freeway Performance Measurement: Final Report and Guidebook examines the effective use of freeway performance measures in operating a freeway system and in meeting the information nee
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2178 contains 19 papers that explore freeway incidents and secondary crashes; a heuristic ramp-metering coordination strategy; estimating freeway traffic density with loop detector and probe vehicle data; casc
TRB’s Transportation Research Record, Journal of the Transportation Research Board, No. 2229 includes 12 papers that explore reliability benefits of ramp metering; quantification of nonrecurrent congestion delay caused by freeway accidents and analysis of causal factors; spatiotemporal patterns o
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 399: Real-Time Traveler Information Systems explores the needs and expectations of travelers, the current status of a variety of traveler information systems in the United States, available and emerging data sources, and busine
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 432: Recent Roadway Geometric Design Research for Improved Safety and Operations reviews and summarizes roadway geometric design literature completed and published from 2001 through early 2011, particularly research that i
