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http://dx.doi.org/10.7470/jkst.2017.35.5.385

Delay Analysis of Small-scale Roundabouts Using VISSIM  

CHO, Ah Hae (Department of Urban Engineering, Chungbuk National University)
PARK, Byung Ho (Department of Urban Engineering, Chungbuk National University)
Publication Information
Journal of Korean Society of Transportation / v.35, no.5, 2017 , pp. 385-395 More about this Journal
Abstract
This study deals with the small-scale roundabout. The purpose of this study is to analyze the average delay of vehicle in roundabout, and suggest the efficient planning and design standard. In pursuing the above, this study gives particular attentions to analyzing the average delay time according to the inscribed circle diameter, speed of circulatory roadway lane and traffic volume. The operational efficiencies of 96 scenarios (3 sizes of inscribed circle diameter ${\times}$ 4 types of circulatory roadway speed ${\times}$ traffic volume) are analyzed using VISSIM (Verkehr In $St{\ddot{a}}dten$-SIMulationsmodell). The main results are as follows. First, the optimal design speed of small-scale roundabout are derived from the above scenario analysis. Second, the traffic volume of LOS D is estimated to be 2,180-2,740pcph. Third, the traffic volume of LOS F that is required to improve is above 2.780pcph. The results might be expected to give some implications to providing the countermeasures for the operational efficiency of roundabout.
Keywords
average delay; circulatory roadway speed; inscribed circle diameter; small-scale roundabout; VISSIM;
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Times Cited By KSCI : 4  (Citation Analysis)
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