BART’s extension to Antioch from the previous terminal at the Pittsburg/Bay Point station has officially opened in California’s San Francisco Bay Area. The new service is not an extension of BART’s (Bay Area Rapid Transit) regular wide-gauge, electrified service. Instead, it’s a standard gauge line operated by diesel multiple unit trains, with a cross-platform transfer to conventional BART equipment at a transfer point next to Pittsburg/Bay Point. The 10-mile line runs mainly down the center of highway 4, with an intermediate stop at Pittsburg Center. More information

— Ed Perkins, editor