事发上海南北高架！3车相撞致拥堵！网友行车记录仪拍到完整经过

Group 1 - A three-vehicle accident occurred on January 17 at the exit ramp of the South-North Elevated Road towards the Lupu Bridge, causing traffic congestion [1][3] - The accident involved a silver SUV that was struck by a black SUV, which allegedly accelerated without signaling, leading to a collision that caused the silver SUV to overturn [1][3] - Emergency services, including police, firefighters, and medical personnel, responded to the scene, confirming that there were no injuries reported [1][3] Group 2 - The incident was captured on a dashcam, showing that the silver SUV made a leftward maneuver that affected the black SUV's driving, potentially provoking the black SUV driver to accelerate [3] - The investigation into the responsibility for the accident is still ongoing [3]