At around 12:00 on March 20, 2022, Chen Moumou (wearing a safety helmet and an informal safety helmet) drove a two-wheeled electric vehicle along Huanghe Street, Shapotou District, Zhongwei City from south to north to the intersection of Huanghe Street and Hengtong Road When turning left at the intersection, he collided with Chang XX driving a Ning E small car while driving east to west along the Hengtong route, causing Chen XX to be injured and the vehicle damaged in a road traffic accident.