Resumen
This study proposes and evaluates a novel control strategy that aims to regulate the roundabout approach inflow by taking into consideration its origin-destination demand pattern. The average density of the circular segment is controlled at a pre-defined range of optimal density which is derived using the Macroscopic Fundamental Diagram (MFD). A case study of a two-lane roundabout in Selangor, Malaysia, is developed in a microscopic simulation environment to study and test the effectiveness of the proposed control strategy. It is shown that the proposed control strategy could reduce the system travel time and increase throughput especially during medium to high level of demand. In addition, the sensitivity analysis reveals that its effectiveness is sensitive to the parameters? setting such as: the roundabout lane geometry, origin-destination demand level, and traffic congestion level.