This is the final report for the continuation phase of a Caltrans and U.S. DOT-sponsored study to evaluate the impacts of the value-priced express lanes located in the median of the Riverside Freeway (State Route 91) in Orange County, CA. The express lanes have been in service since December 27, 1995. The overall objective of the study was to develop information and insights for understanding changes in traffic, travel behavior, and the public's reactions to market-based road pricing and other innovative features of this unique facility. The study findings are based on an extensive compilation of field observations, surveys, and other sources assembled during more than five years, including about a year and a half prior to the facility's opening. These data sets are themselves an important study product. Many of these data may be found on-line at
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.