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http://dx.doi.org/10.12815/kits.2013.12.6.116

A Study on Traffic-Flow Characteristic Changes on Expressway by Visibility  

Son, Young-Tae (명지대학교 교통공학과)
Jeon, Jin-Sook (명지대학교 교통공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.12, no.6, 2013 , pp. 116-126 More about this Journal
Abstract
Weather factor to affect driver's driving environment are due to changes in weather conditions is caused rainfall, snowfall, fog etc and the reducing of road capacity and because deteriorating weather could be affect the headway and vehicle speed and the decrease in lane caused by an accident occurs that was analyzed that bad weather occur congestion greater than on the clear day. Bad weather to reduce of the driver's visibility was analysed the sensitive to changes in travel speed and traffic accident to appears high characteristics according to weather conditions on the expressway(higher speed) than general road. As a result, visibility have been determined to be important factor in changes of the highway traffic flow characteristics. Therefore, in this study, we selected traffic volume and travle speed that have a major impact on high-speed expressway basic segments as importance effect factor and we selected to subject of analysis among the Metropolitan Expressway that it could be obtained certain level of traffic volume data and we studied the changing of expressway traffic flow due to change visibility after the collecting of meteorological and traffic data. In order to perform this study, data collection and analysis methods were established through the existing literature and we had selected level of visibility of the expressway and we had performed the statistical verification. Finally, we had calculated the rate of change of expressway traffic flow characteristics due to visibility and we had come up with a way to apply at capacity and service level analysis.
Keywords
Bad weather; Visibility; Expressway; Effect Factors; Average Travel Speed; Headway;
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  • Reference
1 W. H. Jeon, H. J. Choi, "Revised Guideline for Roadside Safety Facilities on Adverse Weather", Korea Society of Road Engineers, Workshop Presentation File, pp.429-434, 2004   과학기술학회마을
2 J. S. Choi, B. S. Son, J. S. Choi, "The Effect of Rain on Traffic Flows in Urban Freeway Basic Segments", Journal of Korea Society of Transportation, vol. 17, no.1, pp.29-40, 1999   과학기술학회마을
3 S. W. Shim, K. C Choi, "Classification of Freeway Traffic Condition by the Impacts of Road Weather Factors ", Korean Society of Civil Engineers vol. 29, no. 7, pp.685-691, 2009   과학기술학회마을
4 J. O. Brooks, M. C. Crisler, N. Klein, R. Goodenough, R. W. Beeco, C. Guirl,P. J. Tyler, A. Hilpert, Y. Miller, J. Grygier, B. Burroughs, A. Martin, R. Ray, C. Palmer, and C. Beck, "Speed choice and driving performance in simulated foggy conditions", Accident Analysis and Prevention, vol. 43, pp.698-705, 2010
5 F. J. Camacho, A. Garcia, and E. Belda, "Analysis of Impact of Adverse Weather on Freeway Free-Flow Speed in Spain", Transportation Research Record, no. 2169, pp. 150-159, 2010
6 K. B. Shim, J. H. Yoon, "Analysis on Wet-pavement Accident Rate for Rainfall & Road Surface Levels", Journal of Traffic Safety Research, vol. 18, pp.55-70, 1999
7 Manish A., Thomas H. Maze, Reginald Souleyrette, "Impacts of Weather on Urban Freeway Traffic Flow Characteristics and Facility Capacity", Proceedings of the 2005 Mid-Continent Transportation Research Symposium, Iowa State University, United States of America, August 2005
8 Ministry of Construction and Transportation, "Korea highway capacity manual", The Korea Transport Institute.Korea Institute of Construction Technology.Korea Society of Transportation, 2001
9 Transportation Research Board, "Highway Capacity Manual", National Research Council, Washington D.C., 2000
10 Transportation Research Board, "Highway Capacity Manual", National Research Council, Washington D.C., 2010
11 Thomas H Maze, M. Agarwal, G. Burchett, "Whether Weather Matters to Traffuc Demand, Traffic Safety, and Traffic Flow", Iowa State University, 2005
12 Manjunathan Kumar, P.E. and Shaowei wang E.I., "Impacts of weather on rural highway operations", Final Report, Western Transportation Institute College of Engineering Montana State University, 2005