As the core function of the vehicle, it is equipped with a 100K level collision avoidance buffer device, consisting of a guide frame and collision avoidance buffer pad. Based on the principle of energy absorption and conversion, the collision energy can be effectively attenuated and converted through the deformation and buffering of the collision avoidance buffer module when the rear vehicle loses control and rear ends, greatly weakening the impact force and avoiding the out of control vehicle from directly entering the work area. It comprehensively protects the safety of on-site construction personnel, construction equipment and road facilities, and also reduces the damage of out of control vehicles and drivers and passengers, achieving a two-way protection effect. It can reduce tailgating injuries by 90%, providing comprehensive passive protection for operators and equipment in temporary lane closures, road construction and other scenarios, in line with road construction safety regulations.