VISIBILITY OF NEW YELLOW CENTER STRIPES AS A FUNCTION OF OBLITERATION

Temporary center stripe pavement markings in newly resurfaced zones were selected to study driver visibility as a function of the degree of pavement marking obliteration. The Manual on Uniform Traffic Control Devices (MUTCD) specifies 0.1-m-wide retroreflective single dashed yellow stripes with a gap/stripe ratio of 10.98/1.22 m as minimum temporary center stripes in resurfaced zones. The study also investigated the begin and end detection distances of double-dashed (10.98/1.22 m) 0.05-m-wide yellow retroreflective center stripes. Such thin double stripes could be used (same amount of material) to actually indicate to a driver whether the traveled section of the newly resurfaced road is a passing or no-passing section by using the double-dashed pattern as a coding mechanism. The center stripe pavement marking treatments were randomly obliterated by removing 0, 50, and 75% of the retroreflective material from the stripes. Overall, it is possible to conclude that severe obliteration reduces the begin and end detection distance to a considerable degree. However, using four times less material and the shortest specified stripe length (10.98/1.22 m) reduces, for example, the 85th percentile begin and end detection distances from about 53 to 30 m. Therefore, from a begin or end detection distance point of view, if the nonobliterated center-line pavement marking treatment provides barely adequate visibility performance it may not be possible to tolerate much obliteration at all (more than 5 to 10%) before the visibility performance of the overall system (driver-vehicle-center stripe system) falls below the acceptable minimum safety level.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 77-86
  • Monograph Title: Traffic control devices, visibility, and railroad grade crossings
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00714883
  • Record Type: Publication
  • ISBN: 0309061601
  • Files: TRIS, TRB
  • Created Date: Dec 12 1995 12:00AM