This system also encouraged the engineers who worked for BART not only to oversee the design and construction of system,but also to learn the skills required to run and manage this complex transportation system.
Contracts for deign and construction of the railroad infrastructure were awarded to a consortium large engineering firms known as Parsons, Brinkerhoff, Tudor, and Bechtel (PBTB). PBTB began construction on the system in ]January of 1967, The trans-bay tube was started in November of that year. Also in 1967, a contract was awarded to Westinghouse to design and build the ATC.