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

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

Innovate 680

Serving communities in central and southern Contra Costa County, Interstate 680 (I-680) is a backbone corridor for the Bay Area. It extends south to Silicon Valley and north to Fairfield, while providing access to scenic recreational areas, popular retail hubs, and thriving business centers. I-680 is critical to the region’s prosperity as it provides for the movement of goods and services throughout the Bay Area and beyond. Thousands of homes and businesses rely heavily on this corridor for day-to-day travel.