Murat Y.S.Cakici Z.Tian Z.20.04.20192019-04-2020.04.20192019-04-2020190350-2465https://dx.doi.org/10.14256/JCE.2323.2018https://hdl.handle.net/20.500.12403/334The relationship between the left-turning traffic volume and the storage area at signalised roundabouts is investigated, and a calculation procedure for signal timing is proposed in this paper. The parameters associated with the developing stages of a new expression/ model are also defined. Four different signal timing scenarios are considered. The results show that the proposed formula can be used for the design of signalised roundabouts. © 2019 Union of Croatian Civil Engineers and Technicians. All Rights Reserved.eninfo:eu-repo/semantics/closedAccessIntersectionSignalised roundaboutsSimulationTrafficVISSIMIntersectionSignalised roundaboutsSimulationTrafficVISSIMArticle71211312410.14256/JCE.2323.20182-s2.0-85064106335Q4WOS:000461147300004Q4