城镇段国道绕城改线分析及新老国道交叉方案比选  

Analysis of the urban national highway rerouting and the comparison of the crossing schemes

作　　者：沙贞豹 SHA Zhenbao(Qingdao Transportation Planning and Design Institute Co.,Ltd.,Shandong Qingdao 266000 China)

机构地区：[1]青岛市交通规划设计院有限公司,山东青岛266000

出　　处：《山东交通科技》2023年第5期77-79,86,共4页

摘　　要：随着城镇化快速发展,位于城镇段的国道“被城镇化”,降低了国道的干线功能,过境交通与区域交通混行,安全隐患大,国道绕城改线十分必要。改线国道与老国道的交叉方案,将直接影响国道的通行能力和服务水平,需通过多方面综合比选,选择合适的平面交叉方案或互通立交方案,以充分发挥国道交通功能,更好地促进区域经济、城镇发展。With the rapid development of urbanization,the national highway located in the urban section has been"urbanized",which reduces the trunk line function of the national highway,and the transit traffic is mixed with regional traffic,which has great potential safety hazards,and it is necessary for the national highway to be rerouted around the city.The intersection scheme of the rerouted national highway and the old national highway will directly affect the traffic capacity and service level of the national highway,and it is necessary to select the appropriate plane crossing scheme or interchange scheme through a multi-faceted comprehensive comparison to give full play to the national highway traffic function and better promote regional economic and urban development.

关 键 词：城镇化 国道改线 通行能力 交叉方案 交通功能 

分 类 号：U412.35[交通运输工程—道路与铁道工程]