Robotaxi passengers in China became stranded on busy roads after their driverless cars came to a sudden halt in heavy traffic.A "system malfunction" caused more than 100 Apollo Go vehicles to stall in the city of Wuhan, according to local police.While no injuries had been reported, it did cause traffic chaos in some cases.Videos on social media showed cars stopped in the middle of multi-lane roads with their hazard lights on obstructing traffic.Uber and Lyft announce robotaxi trials for LondonRideshare companies Uber and Lyft are planning to bring self-driving cars to the streets of London in the first half of…