| Title |
A Review of Roundabout Capacity Model |
| Authors |
안홍기(An, Hong Ki) ; 김동선(Kim, Dong Sun) |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.2.0143 |
| Keywords |
회전교차로 용량;간격수락 모형;경험적 모형;임계간격;추종시간;차로별 분석 Roundabout capacity model;Gap acceptance model;Empirical model;Critical gap;Follow-up headway;Lane by lane theory |
| 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. |