路缘石【curb】指的是设在路面边缘的界石，简称缘石。它是作为设置在路面边缘与其它构造带分界的条石。 "Curb" refers to the boundary stone which is located on the edge of the road. It is a bar set on the edge of the road and other tectonic belts. 　　路缘石是公路两侧路面与路肩之间的条形构造物,因为形成落差,像悬崖,所也路缘石形成的条状构造,也叫道崖.结构尺寸通常是99cm*15cm*15cm。一般高出路面10cm。 Kerb is between road on both sides of the road and shoulder bar structure, because the gap formation, like a cliff, and also kerbstone formed by the strip structure, also called cliff. Structure size is usually 99 cm * 15 cm * 15 cm. Usually 10cm above the road. 　　路缘石是设置在路面与其它构造物之间的标石。（或说为，是设置在路面边缘与横断面其它组成部分分界处的标石） The road is a monument set between the road and other structures. (or, in the case of a monument, set on the edge of the road and other parts of the cross section.) 　　在分隔带和路面之间，人行道与路面之间一般都要设置路缘石，另外在交通岛，安全岛都设置缘石。 Between the separation belt and the road, the road between the pavement and the pavement is usually set by road, and the other is in the traffic island. 　　 　　其形式有立式，斜式和平式等。 Its forms have vertical, oblique type, etc. 路肩【shoulder；verge】指的是位于车行道外缘至路基边缘，具有一定宽度的带状部分(包括硬路肩与土路肩)，为保持车行道的功能和临时停车使用，并作为路面的横向支承。 Shoulder shoulder; verge 】 【 is located on the outside to the edge of the subgrade, roadway has a certain width of the ribbon part (including the hard shoulder and dirt road shoulder), to maintain the function of roadway and the temporary parking, and as lateral support of the road. 　　(1)路肩的作用 (1) the function of the shoulder 　　路肩是位于行车道外缘至路基边缘、具有一定宽度的带状结构部分，包括硬路肩和土路肩。路肩的主要作用有： The shoulder is located on the edge of the roadway to the edge of the roadbed, with a certain width of ribbon structures, including hard shoulder and dirt shoulder. The main function of the shoulder is: 　　①保护行车道等主要结构的稳定； The stability of major structures such as the protective lanes; 　　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； To provide temporary parking for vehicles that have mechanical failure or emergency situations; 　　③提供侧向余宽，有利于安全，增加舒适感； It provides lateral width, is conducive to safety, and increases comfort. 　　④可供行人、自行车通行； For pedestrians and bicycles to pass; 　　⑤为设置路上设施提供位置； To provide location for road facilities; 　　⑥作为养护操作的工作场地； The working site of the 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； It can also be used as an underground facility without damaging the construction of the highway. 　　⑧改善挖方路段的弯道视距，增进交通安全； To improve the corners of the excavated section and 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。 It allows rainwater to be discharged from the traffic lanes, reducing the amount of rain that travel through the lanes and reducing the road damage.