Fall 2008: National Cooperative Highway Research Program: Compilation of Public Opinion Data on Tolls and Road Pricing
Fall 2008: Caltrans: I-680 SOUTHBOUND EXPRESS LANE PROJECT (Widening/Rehabilitation/HOV/HOT)
December 2008: Transportation for Tomorrow - National Surface Transportation Policy and Revenue Study Commission
September 2007: Metropolitan Transportation Commission HOT Lanes Study Final Report
September 2007: Metropolitan Transportation Commission HOT Lanes Study Final Report Appendices
August 2006: University of Minnisota: MnPass Attitudinal Study Final Report
November 2003: Washington State Department of Transportation: SR 167 HOT Lanes Pilot Project Analysis
November 2003: Deloitte Research: Combating Gridlock: How Pricing Road Use Can Ease Congestion
December 2000: Cal Poly San Luis Obispo: Continuation Study to Evaluate the Impacts of the SR 91 Value-Priced Express Lanes