"Fewer than ten" Waymo cars are operating in Manhattan and "parts of Downtown Brooklyn," a company spokesperson told Crain's. The vehicles are in town for testing and, at least for now, are being operated by humans.

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.