Two trailblazing ride-hailing services are heading toward uncharted territory as they seek regulatory approval to transport passengers around the clock throughout one of the most densely populated U.S. cities in vehicles that will have no one sitting in the driver’s seat.
If Cruise, a subsidiary of General Motors, and Waymo, a spinoff from Google, reach their goal before year's end, San Francisco would become the first U.S. city with two totally driverless services competing against Uber, Lyft and traditional taxis — all of which depend on people to control the automobiles.
