Traffic Signal Chain Scheduling to Relieve Traffic Jam in Intelligent Transportation System

• Main Authors: TASI, CHIEH-TING, 蔡劼廷
• Other Authors: HUANG, CHI-FU
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/pgj3q8

碩士 === 國立中正大學 === 資訊工程研究所 === 105 === For the rapid number increasing of the vehicles, traffic congestion has become a serious problem to people’s life. Traffic congestion may leads some problems e.g., travel delay, fuel consumption, air pollution. Traditional traffic signal based on fixed cycles, which has fixed period schedule, are used to smooth the traffic problem.However, traditional traffic signal can not efficiently deal with the congestion problem. In this paper, we propose method to smooth the traffic congestion problem. In our method, we distinguish the road between congestion or non-congestion. In congestion road, we combine the road with their neighbor road to form a congestion area .First, we configure those traffic signal in the congestion area to become traffic signal chain. The vehicles in congestion area can drive in the traffic signal chain to leave the congestion area. In the road which is distinguished into non- congestion, we consider the road density of current road and neighbor road to schedule to traffic signal to smooth the vehicle in the non-congestion area.The simulation results show that our method can reduce the travel time of vehicles as they travel in the congestion area, as compared with the fixed signal and ITLC[22]. Our method also perform well in the metric of road density variance, road density variance show that our method can spread the vehicle evenly than other methods. Keywords—VANET; Inter-Vehicle Communication; Vehicle-to-Roadside-Unit Communication; Inter-Roadside-Unit Communication; Intelligent Transportation System; Traffic Signal Chain;