Abstract: Jiangbeicheng，covering an area of two square kilometers，is the future CBD for Chongqing city． The proposed high-density development in CBD will generate high traffic flows． Traffic study shows that the already-built surface roadway network and the planned rail transit line 6 and line 9 cannot meet the traffic demand when the area is fully developed． As a supplementation，an underground roadway network was planned to help alleviate the traffic congestion． The planning work of the underground roadway and the traffic analysis results were introduced．

Key words: underground roadway, roadway network planning, traffic analysis, garage, intersection planning

摘要： 江北城包括约2．0km2的土地，是重庆规划中CBD的核心商务区，主要用于商务办公。依据江北城控制性详 细规划，该区域开发密度很高。交通分析表明以江北城目前的地面路网以及规划中的轻轨6号线和9号线，无法 承担如此高强度开发产生的交通压力。提出了为缓解江北城的交通压力而规划的地下路网方案，介绍了对该路网 的交通分析结果。

关键词: 地下道路, 路网规划, 交通分析, 停车库, 交叉口组织