| Title |
Development of the U-turn Accident Model at Signalized Intersections in Urban Areas by Logistic Regression Analysis |
| Authors |
강종호(Kang, Jong Ho) ; 김경환(Kim, Kyung Whan) ; 김성문(Kim, Seong Mun) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.4.1279 |
| Keywords |
유턴 사고모형;신호교차로;맨-위트니 U검정;로지스틱 회귀분석 U-turn accident model;Signalized intersections;Mann-Whitney U test;Logistic regression analysis |
| Abstract |
A novel technique was proposed to calculate fluxes accurately by separation of flow area into a part of step face which is dominated by flow resistance of it and an upper part which is relatively less affected by the step face in analyzing shallow-water flows over discontinuous topography. This technique gives fairly good agreement with exact solutions, 3D simulations, and experimental results. It has been possible to directly analyze shallow-water flows over discontinuous topography by the technique developed in this study. It is expected to apply the developed technique to accurate evaluation of overflows over weirs or retaining walls (riverside roads) and areas flooded by the inundation in the city covered in discontinuous topography. |