BART-SFO Airport Extension

The Bay Area Rapid Transit (BART) was an installation of 8.7‐mile double heavy rail track extension from BART’s Colma Station through the Cities of South San Francisco and San Bruno, and along the Caltrain right‐of‐way to the City of Millbrae. An east‐west aerial “Y” stub (located 1.5 miles north of Millbrae BART Station) was connected to the San Francisco International Airport (SFO).

DEENSCORP was retained by Bay Area Transit Consultants (BART’s General Design Firm) to provide Traffic Engineering services in preparing three separate Traffic Operation and Circulation Analysis Reports for the following multi-modal BART stations: Millbrae, San Bruno, and South San Francisco.

DEENSCORP performed the study to analyze the future capacity, station access roads and parking configurations of the multi-modal stations as well as the overall traffic operations on US 101 and the adjacent roadways due to new BART Stations patrons. Circulation analysis reports were prepared to identify mitigations and improve the LOS, traffic capacity and movements on the roadway crossings during BART line constructions.

DEENSCORP also prepared a Traffic Handling Plan Report for an 8-mile long cut-and-cover BART Line construction with over 11 major roadway crossings. Tasks included LOS analyses for over 150 traffic signals along road crossings and roadway lane closure analysis for these roadways. Recommended various roadway operations and temporary signal timings during construction.

Client: Bay Area Rapid Transit (BART) Consultants

Location: Millbrae, CA / San Bruno, CA/ San Francisco, CA