[1.上海市城市建设设计研究总院(集团)有限公司， 上海市 200125;
汪勇（1992—）， 男， 硕士， 工程师， 从事交通规划与工程设计工作。
Based on the background of the integrated development of the Yangtze River Delta, taking Taicang City as an example, the fast-track distribution system of cluster cities is studied. Research shows that compared with the single-center cities, the traffic travel characteristics of cluster-type cities are significantly different. The cluster connections and intra-cluster traffic are the main features. The large-flow corridors basically follow the OD (origin destination) direction of the cluster, but there are a large number of suburb sections accompanied with certain tidal traffic phenomena in the middle. Studies have shown that it is completely feasible to construct the expressways in cluster cities. The route selection of expressways should take into account the group connection, and the main form is to serve the OD of large passenger transport. In addition, the end of the expressway can be connected with the express road (or trunk road) to extend the laying range of the express road, which can maximize the benefit of the facilities in the short term, and also quickly reconstruct the express road in the long term in order to realize the networked layout of the urban expressways.