Analysis and evaluation on the reservation zone for WAVE/DSRC-based ETC system

• Main Authors: Liu, Bing-Kung, 劉秉琨
• Other Authors: Jan, Rong-Hong
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/18060291504669313313

碩士 === 國立交通大學 === 網路工程研究所 === 102 === Intelligent Transport System (ITS) is a traffic system which combines with information, communication, management, software and hardware devices, and the main purpose is to enhance the road-safety and quality of traffic service. One of important applications in ITS is Electronic Toll Collection (ETC). In accordance with the architectures, ETC system can be divided into two types, which are Single-Lane Free-Flow (SLFF) and Multi-Lanes Free-Flow (MLFF), and the latter architecture is the main worldwide trend for development. In our proposed system, the ETC area is divided into reservation zone and transaction zone. A vehicle will send request message on control channel (CCH) when it enters reservation zone. Once the request message is sent successfully, then the system will allocate a service channel (SCH) to this vehicle. After that, the vehicle will use this SCH for transaction process. In the thesis, we propose a mathematical analysis for computing the probability that a vehicle reserves a CCH successfully. Finally, we conducted simulation experiments by Estinet 7.0 simulator to show the feasibility of the proposed ETC system. We also compared simulation results with the analysis results to show the correctness of the proposed mathematical model.