An autonomous vehicle is parked for its test drive in Singapore Wednesday, Aug. 24, 2016. The world’s first self-driving taxis, operated by nuTonomy, an autonomous vehicle software startup, will be picking up passengers in Singapore starting Thursday, Aug. 25. The service will start small — six cars now, growing to a dozen by the end of the year.

Yong Teck Lim / AP

An autonomous vehicle is parked for its test drive in Singapore Wednesday, Aug. 24, 2016. The world’s first self-driving taxis, operated by nuTonomy, an autonomous vehicle software startup, will be picking up passengers in Singapore starting Thursday, Aug. 25. The service will start small — six cars now, growing to a dozen by the end of the year.