Travel Demand Model

Travel Demand Model Both the Measure C Growth Management Program and the State congestion management legislation require the Authority to develop and maintain a Countywide computerized travel demand forecasting model. The Countywide Model uses information on current and future population and employment, transit ridership, expected roadway improvements, and observed travel behavior to forecast traffic on

Comprehensive Transportation Project List

Comprehensive Transportation Project List To support its planning, programming and modeling efforts, the Contra Costa Transportation Authority maintains a database of transportation projects called the Comprehensive Transportation Project List, or CTPL. This database lists transportation projects for which jurisdictions and agencies are seeking federal or State funding.  The Authority has used the CTPL to create

Environmental Impact Report for 2017 CTP

Environmental Impact Report for 2017 CTP On September 20, 2017, CCTA certified the Final Environmental Impact Report (EIR) for the 2017 Countywide Transportation Plan (CTP). The Draft EIR was released on June 16, 2017. The comment period on the Draft EIR was open until August 1, 2017. On September 1, 2017, CCTA distributed to all

Countywide Bicycle and Pedestrian Plan

Countywide Bicycle and Pedestrian Plan The Contra Costa Transportation Authority has long encouraged walking and bicycling as a way to support our communities and our environment and as alternatives to driving alone. Supporting more walking and bicycling can improve the quality and vibrancy of our neighborhoods and business districts, extend the range and usefulness of

A group of people standing in front of a tunnel

Caldecott Tunnel Fourth Bore

On Friday, November 15, 2013, CCTA and project partners Caltrans, Metropolitan Transportation Commission, and Alameda County Transportation Commission cut the ribbon on the Caldecott Fourth Bore, signifying the successful completion of a monumental engineering feat – and the long-awaited start of smoother traffic flow along a critical corridor for 160,000 motorists each day.

Growth Management Program (GMP)

Growth Management Program (GMP) Measure C (1988), and Measure J (2004) contain two key components: first, a half-cent sales tax program that generates in aggregate $3 billion in new revenues for transportation improvement projects and programs; and second, a Growth Management Program (GMP) that is designed to help Contra Costa County plan for and accommodate

Measure C

Measure C Measure C, Contra Costa County’s transportation sales tax measure, passed in 1988. It provided for a half-cent on the dollar sales tax for twenty years (through March 2009), to pay for an ambitious list of transportation projects and programs included in a voter-approved Expenditure Plan (attached). The measure was estimated to generate $1

Measure J

Measure J In November 2004, Contra Costa County voters approved Measure J with a 71% vote. The measure provided for the continuation of our county’s half-cent transportation sales tax for 25 more years beyond the original expiration date of 2009. As with Measure C (the original 1988 transportation sales tax measure), the tax revenues will

State Route 4 Operational Improvements (I-680 to Bailey Road)

State Route 4 Operational Improvements (I-680 to Bailey Road) The State Route 4 (SR4) Freeway Performance Initiative (FPI)/Corridor Study Management Plan (CSMP) and the SR4 Integrated Corridor Analysis (ICA) identifi ed several elements to improve operations on SR4. The SR4 Operation Improvements Project includes a continuation of a High Occupancy Vehicle (HOV) lane on eastbound

State Route 4 Balfour Road Interchange (Phase 1)

State Route 4 Balfour Road Interchange (Phase 1) The Contra Costa Transportation Authority (CCTA) is constructing a new Balfour Road Interchange at Highway 4. The Balfour Road and Highway 4 intersection is currently signalized, resulting in traffic backups during peak commute times. This project will replace the at-grade intersection with a new interchange at this location. This is the final phase of

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