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http://dx.doi.org/10.12815/kits.2017.16.4.64

A Development of Traffic Accident Prediction Model at Rural Unsignalized Intersections Using Random Parameter  

Lee, Kyu-Hoon (Korea National University of Transportation)
Oh, Ju-Taek (Korea National University of Transportation)
Park, Jeong-Soon (Road Traffic Authority)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.16, no.4, 2017 , pp. 64-75 More about this Journal
Abstract
Previous count models using fixed parameter can not consider the unobserved heterogeneity, as the standard error of the count value is underestimated, excessive t-values are derived thereby reducing the reliability of the model. Also, the study of unsignalized intersections are inadequate because of the difficulty of collecting data and statistical limits for accurate analytical processes compared to the signalized intersections. The purpose of this study is to analyze the factors affecting traffic accidents by constructing the count model using random parameters, and it aimed to distinguish between existing studies based on the rural unsignalized intersections. As a result of the analysis, 7 variables were presented as significant variables, and 2 variables(presence of crosswalk, speed limit) were presented as random parameter.
Keywords
Random Parameter; Heterogeneity; Count Model; Unsignalized Intersection;
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Times Cited By KSCI : 8  (Citation Analysis)
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1 Green W.(2007), Limdep Ver 9.0. Econometric Software Inc., Plainview, NY.
2 Greibe P.(2003), "Accident prediction models for urban roads," Accident Analysis & Prevention, vol. 35, pp.273-285.   DOI
3 Jovanis P. P. and Chang H. L.(1986), "Modeling the Relationship of accidents to miles traveled," Transportation Research Record: Journal of the Transportation Research Board, 1068, pp.42-51.
4 Korean National Police Agency(2015), Police Statistical Yearbook.
5 Lee D. M., Kim D. H. and Shim J. I.(2008), "Development of Traffic Accident Frequency Prediction Models at Rural Four Legged Non-Signalized Intersections," Journal of Transport Research, vol. 15, no. 2, pp.17-26.
6 Lee G. H. and Rho J. H.(2015), "A Development of Traffic Accident Model by Random Parameter : Focus on Capital Area and Busan 4-legs Signalized Intersections," The Journal of The Korea Institute of Intelligent Transport Systems, vol. 14, no. 6, pp.91-99.   DOI
7 Lee S. H., Park M. H. and Woo Y. H.(2015), "A Study on Developing Crash Prediction Model for Urban Intersections Considering Random Effects," The Journal of The Korea Institute of Intelligent Transport Systems, vol. 14, no. 1, pp.85-93.   DOI
8 Leem Y. T.(1993), "An Analysis of Traffic Accidents due to Road Characteristics," Yonsei University.
9 Oh J. T., Ryu S. K. and Hwang J. W.(2013), "Study on Safety Improvement for Signalized Intersections through Accident Causation Analysis," Journal of the Korea Planning Association, vol. 48, no. 3, pp.25-39.
10 Oh J. T., Seong N. M. and Ha O. K.(2005), "Development of Accident Prediction Models for Rural Signalized Intersections," Journal of the Korean Society of Civil Engineers, vol. 25, no. 2, pp.9-15.
11 Park J. S.(2008), "Development of Accident Models based on the Characteristics of Cheongju 4-Legged Signalized Intersections," Chungbuk National University.
12 Park M. H., Lee D. M., Yoon C. J. and Kim Y. R.(2015), "A Development of Traffic Accident Models at 4-legged Signalized Intersections using Random Parameter : A Case of Busan Metropolitan City," International Journal of Highway Engineering, vol. 17, no. 6, pp.65-73.   DOI
13 Park J. S., Kim T. Y. and Yoo D. S.(2007), "Correlation Analysis and Estimation Modeling Between Road Environmental Factors and Traffic Accidents (The Case of a 4-legged Signalized Intersections in Cheongju)," Journal of Korean Society of Transportation, vol. 25, no. 2, pp.63-72.
14 Park J. S., Oh J. T., Oh S. J. and Kim Y. J.(2016), "Analysis of Contributory Factors in Causing Crashes at Rural Unsignalized intersections Based on Statistical Modeling," Journal of Korean Society of Transportation, vol. 34, no. 2, pp.123-134.   DOI
15 Park J. T., Kim J. W., Lee S. B. and Lee D. M.(2008), "Development of a Traffic Accident Prediction Model for Urban Signalized Intersections," Journal of Korean Society of Transportation, vol. 26, no. 4, pp.99-110.
16 Park M. H.(2013), "Relationship between Interstate Highway Accidents and Heterogeneous Geometrics by Random Parameter Negative Binomial Model-A case of Interstate Highway in Washington State, USA," Journal of the Korea Society of Civil Engineers, vol. 33, no. 6, pp.2437-2435.   DOI
17 Park M. H. and Lee D. M.(2015), "Developing an Accident Model for Rural Signalized Intersections Using a Random Parameter Negative Binomial Method," Journal of Korean Society of Transportation, vol. 33, no. 6, pp.554-563.   DOI
18 Shankar V., Mannering F., Barfield W.(1995), "Effect of Roadway Geometrics and Environmental Factors on Rural Freeway Accident Frequencies," Accident Analysis and Prevention, vol. 27, no. 3, pp.371-389.   DOI