THE VISIBILITY OF CARRIAGEWAY MARKINGS ON WET ROADS

DE ZICHTBAARHEID VAN WEGMARKERINGEN OP NATTE WEGEN

Carriageway markings, especially lane markings, are often hardly visible when the road surface is wet. This is a serious problem particularly at night when roads are not lighted. Using published literature the author attempts to find a solution to this problem. The conclusions reached are as follows: precise requirements for the visibility of carriageway markings (traffic lane separation lines) cannot yet be given; marking by means of cubic or angular reflectorized studs is best as regards night visibility on wet roads without public lighting, then marking by means of other types of protruding studs, wavy lines, thermoplastic materials and lastly special paint for roads; as regards day visibility the order of preference is reversed. It is recommended to carry out new tests in open country to evaluate the qualities of different marking systems, taking into account the visibility under different conditions (dry roads, daylight, etc). This is a translation into French (Traduction LCPC 79t 6) of the Dutch report: "Zichtbaarheid van Wegmarkeringen op Matte Wegen, een Literatuur Studie", November 1978, Stichting Studie Centrum Wegenbouw. (TRRL)

• Corporate Authors:

  Central Laboratory of Bridges & Highways, France

  75732 Paris,   France 
• Authors:
  • SCHREUDER, D A
• Publication Date: 1979-7

Language

• French

Media Info

• Features: Tables;
• Pagination: 47 p.

Subject/Index Terms

• TRT Terms: Bibliographies; Building materials; Glass beads; Headlamps; Measurement; Night; Night visibility; Paint; Pavements; Perception; Rain; Reflectivity; Reflectorized materials; Reflectorized road markings; Road markings; Studs; Tests; Thermoplastic materials; Translations; Visibility; Wet weather
• Uncontrolled Terms: Laying; Wet pavements
• Old TRIS Terms: Traffic marking
• ITRD Terms: 8518: Bibliography; 562: Carriageway marking; 4548: Glass shot; 1342: Headlamp; 3623: Laying; 4555: Material (constr); 6136: Measurement; 9052: Night; 3807: Paint; 2229: Perception; 2507: Rain; 560: Reflecting road stud; 5926: Reflectivity; 6255: Test; 7434: Thermoplastic; 8538: Translation; 6783: Visibility
• Subject Areas: Geotechnology; Highways; Materials; Operations and Traffic Management; Pavements; Safety and Human Factors; I35: Miscellaneous Materials; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00315225
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Report/Paper Numbers: LCPC 79T6 Monograph
• Files: ITRD, TRIS
• Created Date: Oct 27 1980 12:00AM