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An Alleviating Traffic Congestion Scheme Based on VANET with a Function to Dynamical Change Size of Area for Traffic Information in Urban Transportations

Authors:
Shinji Inoue
Yousuke Taoda
Yoshiaki Kakuda

Keywords: alleviating traffic congestion; vehicle density; average velocity; VANET; simulation

Abstract:
The traffic congestion frequently occurs in urban transportations. Network services for alleviating the traffic congestion based on vehicle networks have been studied currently. Vehicle Information and Communication System (VICS) is one of the network services. It has been developed in Japan. However, since each vehicle can obtain global information on traffic congestion using VICS, all vehicles in the congested areas tend to move to non-congested areas. As a result, the non-congested areas become congested areas. To avoid such an oscillation between the congested and non-congested areas, we have proposed an Alleviating Traffic Congestion method (ATC). In the ATC method, each vehicle gathers traffic information in a limited area where the vehicle exists by using a Vehicle Ad hoc Network (VANET). The size of limited area is constant in the original ATC method. However, we consider that the size of the limited area should be adaptive depending on traffic condition. This paper proposes a modified ATC method, which can change the size of the limited area depending traffic condition. Through simulation experiments, this paper shows that the proposed method provides faster velocity and shorter trip time than VICS in the environments that traffic varies temporally and spatially, which occur in urban transportations.

Pages: 249 to 252

Copyright: Copyright (c) IARIA, 2014

Publication date: February 23, 2014

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-61208-318-6

Location: Nice, France

Dates: from February 23, 2014 to February 27, 2014