宜居城市道路横断面布置形式选择标准

Selection Standard of Road Cross-section Layout in Livable City

为使城市道路更好地满足宜居城市关于交通便捷有序、城市景观优美等方面的要求,通过合理的横断面布置可以缓解交通堵塞、降低环境污染,形成节能环保型交通出行方式。针对于此,从机动车道、非机动车道和人行道通行能力及道路红线宽度方面进行宜居城市道路横断面布置形式标准研究:以机动车道一条通行能力为基础,考虑各种影响因素,计算得出不同等级、不同车道的通行能力标准;以规范规定的非机动车道和人行道通行能力为基准,综合设施所处地位和服务水平,确定出不同等级、不同横断面下非机动车道和人行道通行能力标准;综合考虑交通流运行、交通安全、道路绿化等影响因素,确定出不同等级、不同断面形式下道路的最小红线宽度;从通行能力标准和最小红线宽度两方面为宜居城市道路横断面的布置提供了选择标准。

In order to make the urban road better satisfy the requirements of convenient transportation and beautiful landscape of the livable city,the traffic jam and the environmental pollution can be reduced by a reasonable cross-section layout to form an energy-saving and environment-friendly travel method of transportation.On the basis of that,the article studies the road cross-section layout standard of the livable city from the aspects of the traffic capacities of motored vehicle lane,non-motorized vehicle lane and sidewalks,and the width of red line etc.Based on the traffic capacity of one motored-vehicle lane,the article considers and calculates all the influence factors to give the traffic capacity standard of different grades and different lanes.According to the traffic capacities of the non-motored vehicle lane and sidewalk stipulated in the standard,and the position and service level of the comprehensive facilities,the article determines the traffic capacities of the non-motored vehicle lane and sidewalk of the different grades and different cross sections.By comprehensively considering the influence factors of traffic flow operation,traffic safety and road greening,the article determines the minimum red line width of road in the different grades and the different sections.The selection standard is provided for the layout of the road cross section of livable city according to the traffic capacity standard and the minimum red line width.