VISIBILITY OF NEW PAVEMENT MARKINGS AT NIGHT UNDER LOW-BEAM ILLUMINATION
Three independent field studies investigating the nighttime detection distances of yellow and white-painted and taped pavement markings of varying widths under low-beam illumination were undertaken. Different centerline and edge line configurations, typically used on highways, were tested. The objective of Study 1 was to obtain exploratory pavement marking visibility field data for detecting the begin and end of a continuous pavement marking line as a function of line width, material, color, and lateral position of the line. Study 2 was conducted to determine the visibility distance of the onset of a left or a right curve (244-m radius) along a tangent section marked with a continuous white taped edge line placed at approximately 1.83 m to the right of the car, as a function of line width. Study 3 was conducted to determine the detection distances for the begin and end of yellow taped pavement marking configurations having different widths, placed on the left side of the vehicle representing a typical centerline on a two-lane rural highway. The results of Study 1 indicate no statistically significant differences (alpha = 0.05) for the average begin or end detection distances using a line width between 0.1 and 0.2 m. The results for Study 2 indicate that there is a statistically significant difference in the average detection distance (alpha = 0.05) between a 0.1- and a 0.2-m-wide right edge line for a left curve. The results of Study 3 indicate that the double solid line configuration provides statistically significant (alpha = 0.05) longer average detection distances when compared with the other configurations for all three widths (0.05, 0.1, and 0.2 m). Overall in Study 3, the end detection distances were significantly (alpha = 0.05) longer than the begin detection distances.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309061601
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1495, Traffic Control Devices, Visibility, and Railroad Grade Crossings. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Zwahlen, Helmut T
- Schnell, Thomas
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 117-127
- Monograph Title: Traffic control devices, visibility, and railroad grade crossings
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Serial:
- Transportation Research Record
- Issue Number: 1495
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Center lines; Edge lines; Field studies; Highway curves; Night; Road marking tapes; Road markings; Rural highways; Traffic paint; Two lane highways; Visibility; Visibility distance; Whites; Width; Yellow
- Uncontrolled Terms: Field data; Solid lines
- Old TRIS Terms: Traffic marking tapes
- Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;
Filing Info
- Accession Number: 00714887
- Record Type: Publication
- ISBN: 0309061601
- Files: TRIS, TRB
- Created Date: Dec 12 1995 12:00AM