Nighttime Visibility of Various Types of Road Markings; A Study on Durability, Including Conditions of Rain, Fog and Dew Institute for Perception TNO, Soesterberg, The Netherlands Working Committee E9 of the Study Centre for Road Construction (Arnhem, The Netherlands) and the Study Centre for Traffic Engineering (Driebergen-Rijsenburg, The Netherlands)

Format:

Conference/Event

Author/Creator:

Blaauw, Gerard J., author.

Conference Name:

SAE International Congress & Exposition (1982-02-22 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1982

Summary:

Nighttime visibility distances of various retroreflective stripes and raised pavement markers were determined in practice, on a dry and wet pavement and in the absence of public lighting. In addition, optical characteristics were measured in relation to the time lapse after application, in order to assess the effects of dirt and wear. Results were described in terms of coefficients of retroreflection, which were also used to predict visibility distances under other conditions than measured.Stripes with a vertical profile and raised pavement markers both are better alternatives for nighttime visibility on wet roads than the more usual paint and thermoplastic markings.The raised pavement markers at first have a better visibility than the stripes, but are more sensitive to dirt and wear on a dry pavement. Dew appears to deteriorate the retroreflection of the raised pavement markers by a factor of up to twenty; a smaller effect is found for the stripes

Notes:

Vendor supplied data

Publisher Number:

820412

Access Restriction:

Restricted for use by site license