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http://dx.doi.org/10.12815/kits.2014.13.5.001

Microscopic Study on the Warrants for TWLTL Based on the DHV - Focusing on the Section with Overlapping Left-turn Movements -  

Lee, Ji-Sun (경기대학교 도시.교통공학과)
Shin, Chi-Hyun (경기대학교 도시.교통공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.13, no.5, 2014 , pp. 1-10 More about this Journal
Abstract
This research focuses on the warrants for the Two-Way Left-Turn Lanes (TWLTL). Using a microscopic traffic simulation tool, two key parameters were investigated herewith. One is a wide range of the Design Hourly Volume (DHV), reflective of recent Korean roadway volume characteristics, that is conventionally reduced from the Average Daily Traffic (ADT). The other is driveway spacing, the length of the middle-lane section where two conflicting left-turn demands often compete for space. In addition, unlike previous researches, the way and the procedure the TWLTL operation is realized in the VISSIM S/W with its add-on application such as VISVAP is clearly stated and described in detail. According to the result of simulations for 10 volume scenarios, as expected, the higher the volume level is, the more delay the left-tuner experience. The Level Of Service (LOS) for most cases was in the range of C and D based on the non-signalized intersection LOS criteria. Furthermore, the TWLTL was found operable up to the volume level of 1,116 and 1,860 vph in heavy direction (equivalent of volume level 7) for 3-lane and 5-lane facility respectively, which covers significant portion of existing two to four-lane highway volumes in Korea.
Keywords
Two-Way Left-Turn Lanes; Design Hourly Volume; Driveway Spacing; VISSIM; VISVAP;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 D. Harwood, "Multilane Design Alternatives for Improving Suburban Highways", NCHRP Report 282, TRB, Transportation Research Council, 1986.
2 AASHTO, A Policy on Geometric Design of Highway and Streets, 2011.
3 Kwak D., Seo M., "A Study on the Two Way Left Turn Lanes", Transportation Technology and Policy, vol. 2, no. 4, pp.162-173, Dec. 2005.
4 Bae G., Sim G., Song C., "A Study on Effectiveness and Warrant Analysis for Two-Way Left-Turn Lanes", Journal of Korean Society for Transportation, vol. 25, no. 6, pp.65-77, Dec. 2007.   과학기술학회마을
5 J. Bonneson, P. McCoy, "Capacity and Operational Effects of Midblock Left-Turn Lanes", NCHRP Report 395, TRB, National Research Council, 1997.
6 J. Pernia, J. Lu, H. Peng, "Safety Issues Related to Two-Way Left-Turn Lanes", Florida Department of Transportation, pp.5-15, 2004.
7 W. Eisele, W. Frawley, "Estimating the Impact of Access Management with Micro Simulation", Texas Transportation Institute, pp.8-14, 2004.
8 PTV AG, VISSIM 5.10 User Manual, 2008.
9 Lim S., Ryu S., Byun S., Moon H., "Directional Design Hourly Volume Estimation Model for National Highways", The Journal of Korea Institute of Intelligent Transport Systems, vol. 11, no. 3, pp.13-22, Jun. 2012.   과학기술학회마을   DOI
10 MOLIT, Korean Highway Capacity Manual, Ministry of Land Infrastructure and Transport, 2013.
11 J. Dale, T. Woody, "Simulating Access Management Strategies", 68th Annual ITE Meeting, ITE, Aug. 2002.
12 PTV AG, VisVAP 2.16 User Manual, 2006.