The selection of anti-collision pad types should comprehensively consider the following factors:
(1) On site conditions (including obstacle size, available space size, traffic flow situation, etc.);
(2) The structure and safety characteristics of the optional crash pad system can be selected;
(3) Cost of anti-collision pad engineering (including materials and installation);
(4) Maintenance and repair are difficult and easy.
When selecting and designing collision pads, the size of the cushion should be in line with the on-site situation. In both frontal and side collisions, it can effectively protect against obstacles and cannot invade the road clearance. The anti-collision pad can choose different structural forms and usage methods based on the terrain conditions and the degree of damage that may be caused in the event of a collision accident. Domestic highways often use circular anti-collision tubes made of fiberglass and composite anti-collision piers as anti-collision pads.
