| Urban road’s cross-section design is between boundary lines of roads determined byurban comprehensive planning, which consists of motor lanes, bicycle lanes, pavements,medians and etc. etc. because functions of the road are different, decorate a cross-section ofroad under the fixed red line width of road, it is various informative.Compared with the urban road design specifications in CHINA, This article describesthe design specifications of road cross section planning and implementation of the Westerndeveloped countries, such as the United States and Japan, analysis the road section form andits layout design maysection at home and abroad,and draws differences and ourcross-sectional design of the problems selected by the cross-section form. This article studyson the relationship between Urban ro ads and the road hierarchical structure.The design ofroad cross section is the key to the design of urban road, so this article makes depth analysisof it,such as traffic on the road, traffic flow operating characteristics, traffic safety, the useof land resources, urban landscape, road drainage and underground pipelines, studys on therelationship between the cross-sectional form and influencing factors of urban road byqualitativequantitative analytical tools to provide a frame of reference for Choice of roadcross section. |