Design and implementation of tracking and emergency system for forth-party logistics based on WebGIS

With the rapid development of modern logistics,logistics model transform from third-party logistics (3PL) to forth-party logistics (4PL).This paper provided a platform of 4PL tracking and emergency decision-making system based on WebGIS.According to the 4PL business needs,the estabilishment of tracking and emergency decision-making system conducted effective simulation and relization for the issue involved in logistics such as real-time tracking of order and vehicle dynamic monitor,the choice of 3PL companies,the generation of emergency decision-making. The system would build proprietary electronic maps hasing on information of all kinds of users and 3PL companies,which provided a visual carrier that users could easily get relevant information. The system could monitor the transport vehicles by using the integrated technology of GPS,GPRS and WebGIS,which would achieve the dynamic visual effects of logistics delivery process. The research results and related software realization provide a platform of 4PL tracking and emergency decision-making system,which can help to guide the current logistics tracking and visual effects in practice.