Phone numbers are seen on taxis on a street in Hanoi

Phone numbers are seen on taxis on a street in Hanoi

Taxis on a street in Hanoi on February 2, 2015. Competition for the rider market is heating up as ride-sharing company Grab introduces a new car-pooling service. Photo: Reuters/Kham

May 11, 2017 1:35 PM (UTC+8)