Washington officials and Los Angeles officials announced steps toward fully automated subway service in their respective cities. In Washington, a proposal was advanced to allow computers to operate a subway line, while Los Angeles officials pursued a new line designed for complete driverless operation. Both moves are being taken as a response to the increasing presence of automated vehicles such as robotaxis. While most mass‑transit systems across the United States still rely on human operators, a growing number of cities are evaluating fully driverless options.