山地城市立交设计理念探讨

Discussion on Design Concept of Urban Interchange in Mountainous City

山地城市立交是骨架路网中的转换节点,受地形、地貌、地质条件限制,路网系统规划及立交节点设计具有特殊性和复杂性。结合山地城市立交案例,从立交的功能定位、规模选型、线形设计、匝道灵活性设计、拥堵防治等方面进行设计探讨,并总结认为,山地城市立交设计应遵循城市各项规划,综合各影响因素进行精细化设计论证。

Mountainous urban interchanges are the transformation nodes in the arterial network.Due to the restrictions of topography,landform and geology,the planning of road network system and the design of interchange node are special and complex.Combined with a case of mountainous urban interchange,the functional orientation,scale selection,geometric design,ramp flexibility design,congestion prevention and other aspects are discussed.The conclusion shows that the design of mountainous urban interchange should follow each urban planning.The fine design of comprehensive influence factors is demonstrated.