西安市道路微改造精细治理实践

Practice of Refined Governance for Micro-renovation of Roads in Xi'an City

摘要:

根据西安市城市交通发展状况以及现状道路存在的问题，结合“城市更新”等相关政策，提出了以道路交通微改造形式来提升西安市交通出行环境的建议，并制定了具体的微改造策略和措施。为验证所提措施的有效性，以西安市主干路未央路—长安路微改造工程为例，利用VISSIM软件建立的仿真模型对其改造效果进行了评估。结果表明：采取微改造措施后，未央路—长安路交叉口机动车通行能力提升约14%，全线通行时间缩短约12%；全线交叉口通行能力得到整体提高，车均延误、排队长度明显减小，大型交叉口慢行交通环境改善显著。所提出的微改造分析方法、改造策略和措施，可为城市建成区道路微改造提供借鉴。

Abstract:

According to the urban transportation development conditions and the challenges posed by existing roads in Xi'an, combined with the relative policies like "urban renewal", the suggestions are put forward to improve the traffic travel environment in Xi'an City in the form of micro-renovation of road traffic. And the specific micro-renovation strategies and measures are formulated. To verify the effectiveness of the proposed measures, taking the Weiyang Road - Changan Road Micro-renovation Project in Xi'an as an example, the simulation model is established by using VISSIM software to evaluate its renovation effects. The result shows that the motored vehicle traffic capacity at the intersection of Weiyang Road and Changan Road is improved by about 14%, and the traffic time of the entire line is shortened by about 12%. And the overall traffic capacity at all intersections along the entire line has been enhanced. The average vehicle delay and queue length have been significantly reduced, and the slow traffic environment at large intersections has been improved markedly. The proposed micro-renovation analysis methods, renovation strategies and measures can provide references for the micro-renovation of roads in urban built-up areas.