Study of Intelligent Routing Method for Advanced Vehicles inSafety Intelligent Transportation System
| Autor: | Xin-chang Chen, 陳信菖 |
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| Rok vydání: | 2008 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 96 Safety and comfort applications have been two popular research topics in ITS recently. In this paper, we propose a vehicle-based intelligent routing method to integrate safety and comfort services in Vehicle Route Guidance Systems (VRGS). By detection, communication and control technologies, it can reach a complete vehicle route in safe and efficient way, and we discuss advanced in hidden conflict path problem that some of centralize routing method might be meet.. A heuristic algorithm for multiple vehicles routing problem called intelligent routing method is propose, base on greedy routing and detour routing switches dynamically, then controller can design a near-optimal route for vehicle. Dynamic detour scheme improve unevenness traffic density condition by balance scheduled vehicle routes and increase road utility rate; Backtrack reroute process use to correct unsafe conflict path problem, in addition, it adjust the access traffic flow liked ramp control in congestion condition. Cooperative drive and Backtrack reroute process to provide safety warranty by collision avoidance; Dynamic detour scheme provide the efficiency warranty by detour path selection; under safe and efficient route planning of globality, the limited transportation resources can be utilized most effectively. In simulation, it indicate the following verification: First, the different size of traffic topology to make critical density different; Second, dynamic detour scheme can balance unevenness traffic, it make traffic system to reach equilibrium and efficiency; Third, Backtrack reroute process can adjust the access traffic, thus traffic will not to collapse. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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