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@article{ART002330598},
author={Kim Taeho and Park Minho},
title={A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections},
journal={The Korea Spatial Planning Review},
issn={1229-8638},
year={2018},
volume={96},
pages={53-65},
doi={10.15793/kspr.2018.96..004}

TY - JOUR
AU - Kim Taeho
AU - Park Minho
TI - A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections
JO - The Korea Spatial Planning Review
PY - 2018
VL - 96
IS - null
PB - 국토연구원
SP - 53
EP - 65
SN - 1229-8638
AB - This study aims to develop a statistical accident model at 3-legged non-signalized intersections with random parameters Poisson method to find the elements affecting traffic accident frequencies. Meanwhile, non-signalized intersections have been treated relatively poorly compared to signalized intersections, which result in fewer studies than signalized intersections. In addition, the previous count models with fixed parameters are not enough to explain the integrated variations in terms of spatial-temporal characteristics road segments or points have. This drawback of the traditional count models results in the underestimation of the standard error of the derived coefficient and finally affects the low reliability of the derived model. To diminish this problem, this study uses the random parameters which take into account the heterogeneity of all the observations. As a result of the analysis, 13 variables were found to have statistically significant variables, 10 variables of which were found to have fixed parameters, and 3 variables (# of entrance/exit on major road, Existence of pedestrian crossing on minor road, and Existence of median barrier on major road) were found to have random parameters indicating the effects on accident frequencies could be varied at each intersection.
KW - Random Parameter;Poisson Model;Heterogeneity;3-legged Non-signalized Intersection
DO - 10.15793/kspr.2018.96..004
ER -

Kim Taeho and Park Minho. (2018). A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections. The Korea Spatial Planning Review, 96, 53-65.

Kim Taeho and Park Minho. 2018, "A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections", The Korea Spatial Planning Review, vol.96, pp.53-65. Available from: doi:10.15793/kspr.2018.96..004

Kim Taeho, Park Minho "A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections" The Korea Spatial Planning Review 96 pp.53-65 (2018) : 53.

Kim Taeho, Park Minho. A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections. 2018; 96 53-65. Available from: doi:10.15793/kspr.2018.96..004

Kim Taeho and Park Minho. "A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections" The Korea Spatial Planning Review 96(2018) : 53-65.doi: 10.15793/kspr.2018.96..004

Kim Taeho; Park Minho. A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections. The Korea Spatial Planning Review, 96, 53-65. doi: 10.15793/kspr.2018.96..004

Kim Taeho; Park Minho. A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections. The Korea Spatial Planning Review. 2018; 96 53-65. doi: 10.15793/kspr.2018.96..004

Kim Taeho, Park Minho. A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections. 2018; 96 53-65. Available from: doi:10.15793/kspr.2018.96..004

Kim Taeho and Park Minho. "A Study on Traffic Accident Model Using Random Parameters Poisson at 3-legged Non-signalized Intersections" The Korea Spatial Planning Review 96(2018) : 53-65.doi: 10.15793/kspr.2018.96..004