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http://dx.doi.org/10.12815/kits.2014.13.1.026

A Study on Developing Intersection Dilemma Zone Evaluation Model  

Lee, Seung-Gyu (영산대학교 교통공학과 대학원)
Lee, Sibok (영산대학교 교통공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.13, no.1, 2014 , pp. 26-34 More about this Journal
Abstract
This study focuses on development of a risk level evaluation model for the intersection dilemma zone based on vehicle speed distribution approaching the intersection. The study results show that dilemma zone exists for all approaches selected for the study because the values of amber time have not been properly set, and that re-optimized values significantly reduce the dilemma zone risk level. It is also found that when normal distribution is assumed for vehicle approach speed the risk values similar to those for actual speed distributions can be obtained. When the risk level is found to be high, the amber time must be adjusted to reduce the length of the dilemma zone, or speed calming measures must be introduced so that vehicle speed be maintained under the speed value used when determining the amber time.
Keywords
dilemma zone; intersection approach; risk level; amber time; speed distribution;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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