- Volume 33 Issue 1
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Modeling and Discussing the Accident Rate Model of Rotary and Roundabout by Type of Land Use
토지이용별 로터리 및 회전교차로 사고율 모형개발 및 논의
- Received : 2017.09.20
- Accepted : 2018.01.29
- Published : 2018.02.28
Rotary that causes traffic delays and safety issues by high-speed entry vehicles is currently being improved to roundabout. The operational difference between rotary and roundabout can cause driver's confusion and traffic accident. The purpose of this study is to develop the accident rate models which explain the factors related to the accidents by land use and intersection type. The main results are as follows. First, the null hypotheses that the type of land use and two intersections do not affect the accident rate are rejected. Second, the conflicting factors such as the number of crosswalk and bicycle lane should be carefully considered to reduce traffic accident at rotary. In the case of roundabout, greater than 3.5 m in circulatory lane width and two circulatory lane are analyzed to be important to prevent the accidents. Finally, the commercial and mixed areas are evaluated to be weak to traffic accidents than residential area.
accident rate model;land use;multiple linear regression;rotary;roundabout
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