Abstract: Minimum retroreflectivity standards issued by the Federal Highway Administration (FHWA) have focused the attention of highway administrators on improving the nighttime performance of signs. This paper outlines the development ...

Abstract: A new highway sign minimum retroreflectivity standard issued by the Federal Highway Administration (FHWA) is compelling agencies to evaluate how to comply while remaining within their budgets. This paper presents the results ...

Abstract: Transportation infrastructure asset management efforts have historically focused on collecting data on assets with high capital costs, such as bridges and pavements. Road signs and pavement markings, on the other hand, are ...

Abstract: In response to minimum retroreflectivity standards, transportation departments are implementing sign asset management strategies, which rely upon knowledge of how retroreflectivity decreases as signs weather and age. To ...