A Voronoi-Based Hybrid Navigation System for Road Network Database

摘要

The navigation system has become one of the essential IT gadgets, especially to the drivers. In addition to the basic functionality of finding a shortest path between two nodes, recent navigation systems are required to provide extra intelligent services to the users. In this paper, we propose a Voronoi-based hybrid navigation system based on 3G wireless communication that has been commercially deployed recently. Our proposed system has the server-client architecture. Based on the Voronoi-based map data, the server receives real-time traffic information through the TPEG and re-computes optimal road network dynamically. For a user request whose optimal path has been affected by the real road traffic data, the server sends modified routing information to the user. We have implemented a prototype navigation system and carried out extensive experiments. The experimental result shows that our proposed system achieves an excellent performance.