基于全寿命周期成本理念的城乡结合部公路横断面设计对策

Design Concept of Cross Section for Urban-Rural Continuum Highway Based on the Concept of Life Cycle Cost

横断面是公路设计的重要内容,也是公路与城市道路差别的重要表现。随着城市化的不断发展,城乡结合部公路必将改造成城市道路。如何从全寿命周期成本理念出发,处理好横断面设计的问题,是城乡结合部公路在城市化改造时是否能够最大限度利用现有老路的关键所在。文章分析了目前城乡结合部公路横断面设计存在的主要问题,结合城乡结合部公路的自身特征及发展需求,分析了设计时应重点考虑的因素,从时间维度与空间维度提出了具体设计对策,对类似项目的规划、设计具有一定的参考价值。

Cross section is an important part of highway design and an important manifestation of the difference between highway and urban road.With the continuous development of urbanization,highways in rural-urban continuum will be transformed into urban roads.How to deal with the problem of cross section design from the concept of life cycle cost is the key to determine whether the existing old road can be fully utilized in the urbanization transformation of urban-rural continuum highway.In this paper,the main problems existing in the cross section design of Urban-Rural continuum highway are analyzed,and combined with the characteristics and development needs of the Urban-Rural continuum highway,the key factors that should be considered in the design are explored,and finally the concrete design countermeasures are put forward from the time dimension and space dimension.The paper has a strong reference value for the planning and design of similar projects.