成都市新津县普兴镇规划路网交通分析与研究

基于成都市新津县普兴镇小城镇建设项目,采用“四阶段法”及“增长率法”,对研究范围内路网进行了规划年交通量及远景交通量预测。通过对普兴镇交通区域进行划分,结合小镇居民交通出行方式,预测了各小区内部之间以及普兴镇与外部地区之间的出发和吸引OD,并对机动车规划年OD使用“容量限制-增量加载”法对各规划道路进行分配,预测了每条规划道路的远景交通量,由此对道路规划方案及断面形式提出了合理建议。预测结果表明,研究范围内的道路通行能力可以满足远景年交通需求,拟定的横断面形式服务水平可达D级以上。项目建成至今交通状况良好,说明所拟定的道路规划方案及断面形式合理可行。

Traffic Analysis and Research on Planned Road Network of Puxing Town in Xinjin County of Chengdu City

Based on the small town construction project of Puxing Town in Xinjin County of Chengdu City, the "four-stage method" and the "growth rate method" are used to predict the planned annual traffic volume and the long-term traffic volume of the road network within the research range. By dividing the traffic area of Puxing Town and combined with the transportation mode of the residents in the small town, the departure and attraction OD within each housing estate and between Puxing Town and the external areas are predicted. The OD of vehicle planning year is allocated by the "capacity limitation - increment loading" method to each planned road. The long-term traffic volume of each planned road is predicted. From this, the reasonable suggestions on the planning scheme and section form of road are put forward. The prediction results show that the road capacity in the research range can meet the prospective annual traffic demand. The proposed cross-sectional service level can reach D level or above. The traffic condition of the project is good so far, which explains that the proposed planning scheme and section form of road are reasonable and feasible.