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http://dx.doi.org/10.12652/Ksce.2021.41.2.0143

A Review of Roundabout Capacity Model  

An, Hong Ki (Huaiyin Institute of Technology)
Kim, Dong Sun (Daejin University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.41, no.2, 2021 , pp. 143-150 More about this Journal
Abstract
Roundabouts have been spreading out all over the world quickly with their attractions including capacity enhancement, safety increase and pollutant emission decrease. The history of Korean roundabout has already been 10 years. However, due to the accumulation of unclear right of way and insufficient data, the advantages of the roundabout are not fully utilized so far. Moreover, there are some differences in the capacity model of roundabouts compared to overseas capacity models. In addition, most research tend to concentrate in evaluation of roundabout performance using computer software. This paper, therefore, investigated overseas typical roundabout capacity models; empirical model and gap acceptance model, and then KHCM 2013 was compared to SIDRA model and USHCM 2010 model. It is expected that this paper will assist and guide practitioners in analyzing and estimating roundabout capacity more precise.
Keywords
Roundabout capacity model; Gap acceptance model; Empirical model; Critical gap; Follow-up headway; Lane by lane theory;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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