Secondary development and utilization of urban road vector data under MapX Environment

During recent years, the transportation question has already become one of the serious problems in urban cities with increasing of number of motor vehicles. In order to solve the traffic jam and to manage the road traffic well, the foremost thing is to get the road information, especially the road vector data. To obtain the road data immediately, economically and accurately is worth to study and discuss with. The paper applies MapX, and integrates secondary exploiture combining with an electronic map of Beijing city, and makes use of Visual C++ as the tool of visualize development. Then the paper develops the query function of road static information and the intelligently processing of interrupt roads. Microsoft Access is also adopted to manage attribute data via data binding, as well attribute data and vector picture data are combined together. The method in the paper may be useful to Intelligent Transportation System.