Studies
- Central-East Southwest Arterial & Freeway Ramp Metering Study, 2003 [ZIP-12.6 MB
- Contra Costa Paratransit Improvement Study, March 2004 [PDF - 3.3 MB]
- East-Central Traffic Management Study, August 2001 [PDF-678 KB]
- I-680 Investment Options Analysis, May 2003 [PDF-2.4 MB]
- SR4 East Widening Noise Abatement Decision Report, October 2008 [PDF - 9.8 MB]
- SR4 East Widening Supplemental Noise Study, July 2008 [PDF-10.5 MB]
- SR 24 Transit Capacity Study, January 2006 [PDF - 5.1 MB]
- Richmond Parkway Upgrade Project, February 2008
- I-680 HOV/Express Bus Access Study, June 2010