Improved multi-lane roundabout designs

摘要

Research for the New Zealand Transport Agency investigated the comparative safety of multi-lane roundabouts versus signalised intersections, pedestrian facilities, vertical deflection devices and visibility to the right. It concluded that, for intersections with four arms or more, a well-designed multi-lane roundabout should be significantly safer for vehicle users than traffic signals. Several means of adequately catering for pedestrians and cyclists at multi-lane roundabouts are feasible to implement in many cases. Guidance for practical application of the relevant measures to enhance roundabout safety is offered.