A nuTonomy self-driving taxi drives on the road in its public trial in Singapore August 25, 2016. REUTERS/Edgar Su/File Photo

A nuTonomy self-driving taxi drives on the road in its public trial in Singapore August 25, 2016. REUTERS/Edgar Su/File Photo

A nuTonomy self-driving taxi undergoes a public trial in Singapore on August 25, 2016. Photo: Reuters/Edgar Su/File Photo

September 23, 2016 12:55 AM (UTC+8)