FILE - In this Dec. 13, 2016, file photo, a skylight is reflected in the rear window of a Waymo driverless car during a Google event in San Francisco. The latest challenge for the autonomous vehicle industry: How to assure passengers that the car they are getting in is virus free, even if it doesn't have a driver. An executive with Waymo said Wednesday, June 17, 2020 that the coronavirus pandemic forced it to put its limited ride service in the Phoenix area on hold to make sure human backup drivers and passengers were safe. (AP Photo/Eric Risberg, File)
A Waymo driverless car operates during a Google event in San Francisco. The company said it would continue to work with other manufacturers after signing an exclusive partnership with Volvo to make a Show more

Volvo and Waymo explore their own route for self-driving taxis