| Title |
A Study of Optimal Distance between Signalized Intersections and Roundabouts Considering Unbalanced Traffic Conditions |
| Authors |
안홍기(An, Hong Ki) ; 김동선(Kim, Dong Sun) ; 배기목(Bae, Gi Mok) |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.6.0707 |
| Keywords |
회전교차로; 대기행렬; SIDRA; 교통량 불균형; 최적거리 산출 Roundabout; Queuing length; SIDRA; Unbalanced traffic condition; Optimal distance |
| Abstract |
An important factor that causesdelays at roundabouts is unbalanced traffic conditions. The majority of domestic studies have tendedto focus on the proportion of entering traffic rather than conflicting traffic in order to explain unbalanced traffic conditions. Also, there is scant research on the proper distance between a signalized intersection and a roundabout. In this study, therefore, unbalanced traffic conditions and optimal distance between two intersections were analyzed using SIDRA software based on the Gajwa-ro roundabout in Icheon, where unbalanced traffic conditions occur during afternoon peak hours, and its position is 295 m from a signalized
intersection. It was found that a state of unbalanced traffic conditions in the form of conflicting traffic caused delays at Gajwa-ro roundabout, and the queuing length on each approach was removed when there was 850 m of distance between two intersections. |