DRIVER VISIBILITY RETROREFLECTIVITY STANDARDS

A high percentage of fatal accidents occur at night on unlit roadways. On these roads, horizontal roadway markings provide drivers with much of the visual input required to ensure proper vehicle lane positioning. Centre and edgeline markings are the most common forms of such delineation. Ensuring that these markings meet minimum retroreflectivity performance requirements should therefore enhance the safety of night time driving. This paper presents the results of a study undertaken to identify these minimum retroreflectivity levels. For the covering abstract of this conference, see IRRD number 853909. (A)