Abstract:Beijing Dongba Depot is located in the north boundary of the west area of Dongba. The depot is arranged on the ground. Its second floor is for the upper-cover integrated development. The north side of the depot is close to the planned expressway. According to the traffic analysis, about 70% of the external traffic of motor vehicles in the area needs to enter the expressway system at the north side through the upper-cover road of the depot, in which about 45% is generated internally by the development of the upper cover. The upper-cover road has dual functions of regional transit and upper-cover property distribution. Therefore, the efficient connection of the upper-cover road and the expressway system is the study focus. Combined with the analysis on the main traffic demand and the layout of surrounding planned road network, the traffic function of the upper-cover road is defined. On this basis, a variety of connection modes of upper-cover road and expressway system are listed and compared by traffic simulation analysis. The final recommended scheme can meet the traffic organization characteristics of connecting the regional transit and the upper-cover property distribution with expressway, which can maximize the traffic efficiency of the region.