刘士贵
摘 要:近年来,我国城市经济不断发展,城市的边界也不断向外扩展,导致原先的郊区高速公路内化入市区,这就在一定程度上阻碍了城市的发展。按照原有的指标设计的高速公路由于新线位布置困难,红线宽度不够等问题而使其在城市化改造的过程中遇到许多问题。为了解决这些问题,我们探究了一些考虑到后期城市化改造的路线,并且分别在交叉口、纵断面、横断面以及平面等四个方面展开研究。考虑到那些近郊的新建高速公路线路有内化进城市内的情况发生,为了防止以后高速路线城市化改造的困难,就可以按照考虑后期城市化改造的高速公路的设计指标来修建。
关键词:城市化发展;高速公路;指标研究
中图分类号:U412.36+6 文献标志码:A 文章编号:2095-2945(2018)23-0099-02
Abstract: In recent years, with the continuous development of urban economy in China, the boundaries of the city have been expanding, resulting in the internalization of the original suburban expressway into the urban area, which to a certain extent hindered the development of the city. The freeway designed according to the original index has encountered many problems in the process of urbanization because of the difficulty of layout of the new line and the insufficient width of the red line. In order to solve these problems, we explore some routes that take into account the late urbanization transformation, and carry out research in intersection, vertical section, cross section and plane. Considering that the new expressway lines in the suburbs are internalized into the city, in order to prevent the difficulty of the urbanization transformation of the high-speed line in the future, we can build the expressway according to the design index of the highway considering the later urbanization transformation.
Keywords: urbanization development; expressway; index research
近年來,我国城市化进程不断推进,城市区域不断扩张延伸到郊区,并且大量修建高速公路对于资金、人口的流动起到了很大的作用,给人们的日常出行带来了十分大的便利。然而城市的极速扩张使得高速公路周边用地被侵占,这就出现了城市发达的地方有高速公路穿过的情况。因为高速公路往往对于外界是十分封闭的,所以高速公路的线路就会阻隔公路两侧的区域,这在很大程度上限制了城市的发展,所以城市化改造的过程是复杂困难又是十分迫切的。
1 郊区高速公路
通常来说,高速公路是服务于不同区域之间运输需求的,而且在设计高速公路的修建方案时,首先要考虑与市中心的距离和对城市的影响。……