Intersection safety reviews and safety audits, aimed at improving the physical and operational characteristics of an intersection, are a proven means of facilitating a reduction in crash frequency and crash severity. The process of an in-service safety review requires the assessor to determine what an unfamiliar user would experience as they drive, ride or walk into and out of a roundabout intersection. Although lists of issues affecting safety are identified herein, this document is not a prescription or checklist, but instead points to design principles as the fundamental basis for roundabout safety. Adherence to the principles outlined herein still does not ensure good design; this remains the responsibility of the designer. In this report, the design checks required to attain predicted safety performance and safety enhancements for inservice roundabouts that incorporate the previously established guidelines are presented with examples of design pitfalls and a list of checks to be carried out. This paper provides safety assessment guidelines for all sizes of roundabouts, except mini-roundabouts with fully traversable central islands. For the covering abstract of this conference see ITRD number E211395.
Samenvatting