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A Study on Installation of U-Turn Lane for Efficient Operation of Left Turn at Signalized Intersections
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 Title & Authors
A Study on Installation of U-Turn Lane for Efficient Operation of Left Turn at Signalized Intersections
Park, Chahgwha; Yoon, Byoungjo; Kang, Bongsuk;
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 Abstract
Until now, u-turn lane installation methods have been studied variously. But, There is no specific standard yet. This study ranges are commercial area in Incheon metropolitan city through field investigation and presents specific design standard for efficient operation of left turn using a field data through calculating relevant permitted u-turn lane length and minimum separation distance from the front intersection to starting point of permitted u-turn lane in urban signalized intersections in commercial area. Relevant permitted u-turn lane length is found to be 32m and minimum separation distances from the front intersection to starting point of permitted u-turn lanes are 72m, 40m, 24m in case of 1 left turn lane, 2 left turn lanes and 3 left turn lanes respectively. By comparing result values and field data, they had a large difference under the similar situations in their lengths. This result is caused of no specific standard about design of u-turn lanes. If results of this study applied to design of u-turn lanes, signalized intersections in urban commercial areas would be operated more safety and efficiently.
 Keywords
U-Turn;U-Turn Location;U-Turn Length;Efficient Operation of Left Turn;Signalized Intersections;
 Language
Korean
 Cited by
1.
Assessing the Effects of Indirect Left Turn on a Signalized Intersection Performance: A Case Study for the Tehran Metropolitan Area, Open Journal of Applied Sciences, 2017, 07, 11, 617  crossref(new windwow)
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