| Title |
Effectiveness Analysis of Transforming Many-Legs Type Intersection into Roundabout in Jeju |
| Authors |
이동원(Lee, Dong Weon) ; 고상익(Ko, Sang Ick) ; 이동욱(Lee, Dong Wook) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.6D.623 |
| Keywords |
다지교차로;회전교차로;교통혼잡비용;효과분석 many-legs type intersection;roundabout;traffic congestion cost;effectiveness analysis |
| Abstract |
Roundabout is an intersection that allows vehicles to pass through the intersection by circulating the circular traffic island at the center of the intersection. In this study, a comparative analysis was conducted on roundabout at five locations in order to deduce the operational result and financial effect of roundabout and signal intersection. As for the operational result, it was found that roundabout showed improvement effect in the average delay per vehicle compared to that of signal intersection by minimum of 65.6% and maximum of 91.77%. it was found that roundabout showed financial cost-saving effect in the traffic congestion cost compared to that of signal operation by minimum of 58.59% and maximum of 81.69% per year. It can be known from these analysis results that roundabout has significant operational effects under certain amount of traffic volume by allowing vehicles to pass through the intersection in a continuous way without much waiting time and stoppage from signal control. |