Hangzhou put 15 humanoid robots on traffic duty in May. They direct cars and spot violations, but enforcement stays with human officers.

But at a busy intersection in the eastern Chinese city of Hangzhou, the 1.88-m (6-foot-2-inch) robot can spot a helmetless e-bike rider, issue a polite warning and swing its…

A Chinese technology company is testing robot traffic officers in Hangzhou to automate repetitive road-monitoring duties. Reuters reported that the machines can detect helmetless…