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http://dx.doi.org/10.7470/jkst.2014.32.6.651

Development of Capacity Models Based on the Travel Characteristics at Roundabout  

Kim, Tae Young (University-Industrial Cooperation Research Institute, Pohang University of Science and Technology)
Beak, Tae Hun (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.32, no.6, 2014 , pp. 651-661 More about this Journal
Abstract
Recently, many studies have been undertaken regarding the of introduction at roundabout in Korea. The studies related to roundabout capacity, however, is insufficient. Thus, the goal of this study is to develop a capacity model based on real data. The main results are as follows. First, roundabout capacity in Korea was analyzed using HCM capacity model based on critical gap and following time estimated by Probit model. Entry capacity in Korea was evaluated to be similar to that of the U.S in the case of low circulating flow($Q_c$), but higher in the case of high circulating flow($Q_c$). Second, the basic capacity models in Korea were newly developed based on real traffic data. Third, models that consider geometric structure were developed based on the basic models. Finally, all of the developed models mentioned above were analyzed to be statistically significant.
Keywords
capacity models; design guidelines; model development; roundabout; travel characteristics;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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