标题：Automatic extraction of vector road based on bus GPS data
作者：Xu, Shi-Hao; Li, Fang-Zhen; Meng, Ling-Guo; Zhao, Qing-Tao
作者机构：[Xu, Shi-Hao; Li, Fang-Zhen] Shandong Univ Finance & Econ, Sch Comp Sci & Technol, Jinan, Shandong, Peoples R China.; [Meng, Ling-Guo] Shandong Univ 更多
会议名称：4th International Conference on Civil Engineering and Urban Planning (CEUP)
会议日期：JUL 25-27, 2015
来源：CIVIL ENGINEERING AND URBAN PLANNING IV
摘要：Acquiring the accurate geospatial information of road, the basic component of the RN (Road Network) is the precondition for the construction of high-precision vector RN. This paper presents a method for automatically extracting the vector representation of the routine pre-allocated for the bus from massive GPS (Global Positioning System) trajectories data. First, error and redundant data are eliminated and seed points that can roughly describe the road morphological structure are selected out. Then, those seed points are corrected by using the gravity method, and the core points, points on the road, are clustered from the corrected seed points. Finally, vector road is extracted and smoothed. The experimental result indicate that the method presented is effective and able to provide support for the subsequent construction of the vector RN map.