Pedestrian Safety Guide and Countermeasure Selection System
Prohibiting left-turns at intersections can reduce the risk of motorists failing to yield to pedestrians.
Source: Flickr - M.V. Jantzen (2008)
Left-turn prohibitions use a raised measure to physically prohibit left-turns at specific locations where the turning vehicle may present a conflict with pedestrians in the crosswalk. Ideally, the design of this measure should allow for easy access by bicyclists and all pedestrians who are crossing the street perpendicular to the measure.
As with other traffic management tools, left-turn prohibitions must be used in conjunction with other traffic management tools within the neighborhood street network. The result of this measure may also reduce the through-traffic of the cross-street, however additional right-turns and increased traffic at proximate intersections may occur.
Authors and Acknowledgements