Recently, the Ministry of Transport decided to upgrade the control of the "May 16" cap beam formwork support collapse accident on the G4216 Yijin Expressway in Liangshan Prefecture, Sichuan Province, and implement the supervision of the supervision according to the "Measures for Warning, Interview and Supervision of Transportation Safety Production". It is understood that on May 16, the cap beam formwork support collapsed at the Xisujiao Bridge of the XJ15 section of the G4216 Yijin Expressway in Liangshan Prefecture, Sichuan Province, killing three people. The construction unit is Sichuan Yanjiang Yijin Expressway Co., Ltd., the general contractor is Sichuan Highway and Bridge Construction Group Co., Ltd., the construction unit of the XJ15 section is Sichuan Road and Bridge Engineering Co., Ltd., the design unit is Sichuan Provincial Highway Planning, Survey and Design Institute Co., Ltd., and the supervision unit is Zhejiang Highway and Water Transport Engineering Supervision Co., Ltd. The supervision requires local transportation authorities to conduct accident investigations in accordance with their duties, find out the relevant causes as soon as possible, punish the responsible units and personnel in accordance with laws and regulations, consolidate the safety responsibilities of all parties involved in the construction, and ensure the stability of the industry's safety production situation.