Video: 5G self-driving buses, without driver seat, hit the road in Zhengzhou, China

BEIJING — Buses circling a 1.53 km route in the Chinese city of Zhengzhou are offering a sneak peek at what the combination of 5G telecommunications and self-driving technology is likely to bring.

Chinese manufacturer Yutong Bus has dispatched four electric self-driving buses in an open-road trial project on “Intelligent Island” in the city’s Longzi Lake. The buses, called Xiaoyu, are at Level 4 on the autonomous scale, which means they can drive themselves without any human intervention under certain conditions.

Two staff members are aboard to provide explanations and hit the emergency brake button if necessary.

The Xiaoyu runs at 20 kph and can travel 200 km on a charge with the air conditioning on. It has eight seats — and no steering wheel. Yutong says the buses are able to change lanes, avoid obstacles, overtake other vehicles, stop at bus stations, apply emergency braking and drive through intersections.

Cooperation with telecom companies China Unicom and China Mobile has brought superfast 5G networking to the island, while the adoption of what is known as “vehicle to everything” communications technology enables remote monitoring and other capabilities, Yutong said. The company has developed a cloud platform for autonomous driving, which involves highly accurate three-dimensional maps and real-time monitoring of the buses and road conditions.

During a test run, the bus suddenly stopped when pedestrians and vehicles moved into its lane 20 to 30 meters ahead — a reminder of why it is important for passengers to fasten their seat belts. Asked whether the programmed distance to the next car up ahead was too far, Peng Nengling, vice president of the Yutong Group Intelligent Network Research Institute, said, “Safety is given higher priority than efficiency.”

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