基于城市更新背景的成都科华路（二环路—三环路）改造方案研究

Research on Reconstruction Scheme of Kehua Road (Ring Road II – Ring Road III) in Chengdu Against Background of Urban Renewal

摘要:

城市发展进入存量更新阶段，提升既有骨干道路通行效率是交通系统更新改造的重要任务。针对成都科华路（二环路—三环路）路段存在的拥堵问题，基于现状路网条件、用地开发格局及交通运行特征，在城市更新背景下开展改造工程方案研究。通过对比下穿隧道与跨线桥2种总体方案，分析空间实施条件、交通流量分析、投资及工期等因素，最终推荐组合隧道改造方案。结果表明，研究方案可显著提升路段及中环路节点交通运行效率，可为城市建成区道路改造提供技术参考与实践借鉴。

Abstract:

As urban development enters a stage of stock renewal, improving the traffic efficiency of existing arterial roads has become a key focus of transportation system renovation and upgrading. In response to congestion problems on the Kehua Road section (Ring Road II - Ring Road III) in Chengdu, a research on reconstruction engineering schemes is conducted under the context of urban renewal according to the current road network conditions, land development layout and traffic operation characteristics. By comparing two overall schemes, namely underpass tunnels and overpass bridges, the factors such as spatial implementation conditions, traffic flow analysis, investment and construction period are analyzed. Finally, a combined tunnel reconstruction scheme is recommended. The results show that the proposed scheme can significantly improve the traffic operation efficiency of the road section and the nodes of the Middle Ring Road, and can provide technical references and practical experience for road reconstruction in built-up urban areas.