San Francisco Trains Still Run on '90s Tech, Floppy Disks Control Subways
• San Francisco's train system still uses floppy disks from 1998 to run automatic train control system • Planning to overhaul system began in 2018, will take over a decade to complete • Floppy disks load software for central servers when trains enter subway • Aging system is hard to maintain, risks failure over time • Goal is to have single train control system for entire rail system