Browse > Article
http://dx.doi.org/10.12815/kits.2015.14.1.022

A Study on Safety Impacts for VMS Traffic Information  

Lee, Sang Hyuk (KICT)
Cho, Hye Jin (Korea Institute of Civil Engineering and Building Technology (KICT))
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.14, no.1, 2015 , pp. 22-30 More about this Journal
Abstract
Recently ITS have been increasingly applied on the roads to resolve traffic problems. Especially, Variable Message Sign (VMS), which is the one of ITS for traffic management and traffic safety, can be used for providing information about road conditions, climate conditions. In this study, data acquisition and statistical analysis were conducted for estimating safety impacts of providing traffic information through VMS. As a result of analyzing traffic characteristics before and after providing traffic information through VMS, average travel speed was decreased and vehicles tended to drive on centerline of lanes in 1st and 2nd lane after providing traffic information through VMS. Also, in order to analyze safety impacts of provided VMS traffic information, traffic safety hazard zone was established in each lane and probability distributions of passing traffic on the study area was estimated through Anderson-Darling Test. As a result of this, safety impacts of VMS traffic information in 1st lane could, on average, increase in left and right side of the lane by 0.69% and 7.07%, respectively. In case of 2nd lane, safety impacts could, on average, increase in left and right side of the lane by 2.71% and 0.02%, respectively.
Keywords
Variable Message Sign; Traffic Safety Impacts; Traffic Safety Hazard Zone; Anderson-Darling Test;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 C. W. Do, H. S. Kim, K. H. Kim, S. B. Lee, and H. J. Cho, "Traffic safety engineering", Chungnoongak, 2013.
2 S. Y. Shin, S. B. Lee, J. B. Lim, and J. Y. Hong, "Evaluation level of information provided according to user satisfaction of VMS on the continuous traffic flow", Journal of the Korean Society of Transportation, 29(3), pp.49-58, 2011.
3 J. B. Lim, J. Y. Hong, S. B. Lee, S. H. Jung, and J. R. Hwang, "A study on driver's psychological responses to VMS traffic information using driving simulator", Journal of the Korea Institute of ITS, 9(3), pp.20-29, 2010.
4 X. Yan, and J. Wu, "Effectiveness of variable message signs on driving behavior based on a driving simulation experiment", Discrete Dynamics in Nature and Society, 10.1155/2014/206805, pp.1-9, 2014.   DOI
5 C. Oh, T. H. Kim, J. J. Lee, S. B. Lee, and C. W. Lee, "Use of a driving simulator to determine optimum VMS locations for freeway off-ramp traffic diversion", Journal of the Korean Society of Transportation, 26(1), pp.155-164, 2008.
6 H. A. Jamson, and N. Merat, "The effectiveness of safety campaign VMS messages-a driving simulator investigation", Proceedings of the 4th International Driving Symposium on Human Factors in Driver Assessment, Training, and Vehicle Design, pp.459-465, 2007.
7 L. N. Boyle, and F. Mannering, "Impact of traveler advisory systems on driving speed: some new evidence", Transportation Research Part C, 12, pp.57-72, 2002.
8 H. S. Park, H. G. Lee, K. J. Chang, and S. M. Yoo, "LDWS performance study based on the vehicle type", Transactions of KSAE, 20(6), pp.39-45, 2012.
9 H. J. Shin, K. M. Sung, and J. H. Heo, "Derivation of modified Anderson-Darling test statistics and power test for the Gumbel distribution", Journal of Korea Water Resources Association, 43(9), pp.813-822, 2010.   DOI
10 T. W. Anderson, and D. A. Darling, "Asymptotic theory of certain 'goodness of fit' criteria based on stochastic processes", The Annals of Mathematical Statistics, 23(2), pp.193-212, 1952.   DOI