Core Viewpoint - The Ministry of Transport has decided to implement a special supervision on the roof collapse accident at the Xinglong Tunnel of the 351 National Road in Hubei Enshi, which resulted in 4 fatalities [1] Group 1: Accident Details - The roof collapse accident occurred during the expansion project of the Xinglong Tunnel on the 351 National Road in Hubei Enshi [1] - The construction unit is the Enshi County Transportation Bureau, while the construction company is China Railway 17th Bureau Group Second Engineering Co., Ltd. [1] - The design unit is China Communications Second Highway Survey and Design Institute Co., Ltd., and the supervision unit is Chongqing Yucai Engineering Consulting Supervision Co., Ltd. [1] Group 2: Regulatory Actions - The Ministry of Transport requires local transportation authorities to conduct an investigation into the accident and identify the causes promptly [1] - There is an emphasis on targeted rectification of issues and legal penalties for responsible units and personnel [1] - The goal is to effectively enforce safety responsibilities among all parties involved in the project to ensure stability in the industry’s safety production situation [1]