Intersection lighting increases motorist and pedestrian visibility and reduces crash potential. No specific warrants have been established for intersection lighting. Lighting should be installed at those locations where a qualified lighting design specialist has determined that lighting will contribute to the efficiency, safety, and/or comfort of motorists and pedestrians.
Most state DOTs, as well as the Illuminating Engineering Society of North America, have developed criteria to assist in determining lighting requirements. When designing lighting, the following factors should be considered: luminaire type, wattage, mounting height, and pole location. A qualified lighting design specialist should evaluate intersection lighting.