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路肩石的主要作用有：
The main functions of shoulder stone are as follows:
①保护行车道等主要结构的稳定；
① protect the stability of main structures such as 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 provide temporary parking position for vehicles with mechanical failure or emergency;
③提供侧向余宽，有利于安全，增加舒适感；
③ provide side clearance, which is conducive to safety and increase comfort;
④可供行人、自行车通行；
④ it can be used for pedestrians and bicycles;
⑤为设置路上设施提供位置；
⑤ provide location for setting road facilities;
⑥作为养护操作的工作场地；
⑥ as the working site for maintenance operation;
⑦在不损坏公路构造的前提下，也可作为埋设地下设施的位置；
⑦ on the premise of not damaging the road structure, it can also be used as the location of buried underground facilities;
⑧改善挖方路段的弯道视距，增进交通安全；
⑧ improve the sight distance of the curve in the excavation section to improve the traffic safety;
⑨使雨水能够在远离行车道的位置排放，减少行车道雨水渗透，减少路面损坏。
⑨ the rainwater can be discharged far away from the carriageway to reduce the rainwater penetration of the carriageway and the damage of the road surface.