既有高速公路新增立交收费站设计要点分析

Analysis on Key Points in Design of New Interchange Toll Stations on Existing Expressways: A Case Study of West Jinchang Road Interchange in Jiajin Section of G15 Highway

摘要:

既有高速公路增设立交收费站是一项复杂的节点工程。为确保设计方案落地实施，需要在规划设计阶段对遇到的各类问题和要点进行系统性梳理和分析，并提出相应的解决方案。以G15公路嘉金段（G1503公路至S32公路）改、扩建工程中同步增加的金昌西路立交收费站工程为例，通过分析和总结路网功能、立交间距、土地要素、对相交道路的交通影响、与重要结构物的关系，以及景观风貌等设计要点，并对各要点上的难题，通过方案比选、技术优化等措施予以解决，在保障项目顺利推进的同时，为日后其他高等级公路增加立交收费站提供设计参考。

Abstract:

The addition of interchange toll stations to existing expressways is a complex nodal project. To ensure the effective implementation of the design scheme, it is necessary to systematically sort out and analyze various issues and key points encountered during the planning and design stages, and formulate the corresponding solutions. Taking the West Jinchang Road Interchange Toll Station Project co-constructed in the G15 Highway Jiajin Section (G1503 Highway ~ S32 Highway) Reconstruction and Expansion Project as an example, the key design points, such as road network function, interchange spacing, land factors, traffic impact on intersected roads, relationship with important structures, and landscape features are analyzed and summarized. The difficulties encountered in each key point are solved through the scheme comparison, the technical optimization and the other measures. At the same time to ensure the implementation of the project smoothly, the design reference is provided for the addition of interchange toll stations on the other high-grade highways in the future.