路肩石的主要作用有：
The main functions of the shoulder stone are as follows:
①保护行车道等主要结构的稳定；
(1) the stability of the main structures such as the protection of the carriageway;
②为发生机械故障或遇到紧急情况的车辆需要临时停车提供位置；
(2) providing temporary parking for vehicles with mechanical failures or emergency situations;
③提供侧向余宽，有利于安全，增加舒适感；
Providing lateral width is conducive to safety and comfort.
④可供行人、自行车通行；
(4) can be used for pedestrians and bicycles.