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http://dx.doi.org/10.7470/jkst.2013.31.4.058

The Proper Length of Transition Area for Work Zones on Urban Freeways  

Lee, Mi Ri (Department of Transportation Engineering, University of Seoul)
Lee, Chungwon (Department of Civil and Environmental Engineering, Seoul National University)
Kim, Do-Gyeong (Department of Transportation Engineering, University of Seoul)
Publication Information
Journal of Korean Society of Transportation / v.31, no.4, 2013 , pp. 58-66 More about this Journal
Abstract
Due to the characteristics of urban freeways such as heavy traffic and high speed, work zone on urban freeways causes the increase of not only the likelihood of crash occurrence but also traffic congestion caused by lane drop, lane change, acceleration/deceleration, and etc. This paper aims to determine the proper length of transition area that satisfies two criteria, mobility and safety, to make the operation of work zone more efficient. For the analysis, three different scenarios were developed by the number of lanes and the proper length of transition area were determined by changing the length from 100m to 500m in 100m increments. The results showed that the proper length of transition area for 3- and 4-lane freeways is 300m, whereas the proper length of 2-lane freeways is 200m. The results indicated that the different length of transition area based on the number of lanes is more desirable and efficient.
Keywords
Conflict; Mobility; Safety; Transition Area; Work Zone;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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