Retroreflectivity
Retroreflectivity of longitudinal pavement markings is expected to improve safety on rural highways. However, the few available research reports focused on the relationship between retroreflectivity and safety have found mixed results. This paper provides new insights into such a relationship by using Generalized Linear Mixed-Effects Models (GLMM). Using this tool, the research team developed and analyzed a database of rural two-lane roads in Michigan, including night crashes, roadway characteristics, and retroreflectivity of pavement markings.
Nighttime safety and pavement marking retroreflectivity on two-lane highways
The relationship between pavement marking retroreflectivity and nighttime safety has been a topic of research for past decade or more but consistent findings have been elusive despite the intuitive nature of having bright markings.