Waymo vehicles are cruising on Philadelphia streets this summer, potentially setting the stage for a fully autonomous rideshare service here. Why it matters: Self-driving taxis have already been rolled out in several cities — Atlanta,

Philadelphia is one of more than 10 cities where human autonomous-technology experts will be taking Waymos on summer “road trips,” allowing the cars “to get to know the city,” spokesperson Sandy Karp said in a statement. The testing fleets are closed to the public.