Bay Area Heatwave Triggers Phantom Trains on BART, Worsening Delays

A Bay Area heatwave hits BART with a substation fire, HVAC failures, and an unusual control-system glitch that creates phantom train occupancies on the tracks, forcing slower speeds and reroutes. Green Line service was halted and Peninsula routes disrupted as riders faced long waits and bus substitutions; officials say extreme heat can trigger false occupancies and aging infrastructure is a contributing factor, with the Daly City substation slated for replacement to prevent future outages.