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Measurement and analysis of pavement marking retroreflectivity

Nepal, K. P. and Lahtinen, L. 2011, Measurement and analysis of pavement marking retroreflectivity, Transport engineering in Australia, vol. 13, no. 1, pp. 49-60.

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Title Measurement and analysis of pavement marking retroreflectivity
Alternative title Measurement and analysis of pavement marking retrorefl ectivity
Author(s) Nepal, K. P.
Lahtinen, L.
Journal name Transport engineering in Australia
Volume number 13
Issue number 1
Start page 49
End page 60
Total pages 12
Publisher Engineers Media
Place of publication Canberra, A.C.T.
Publication date 2011
ISSN 1324-1591
Keyword(s) road safety
retroreflectivity
Summary Retroreflective pavement markings enhance road safety by increasing visibility of roadway delineation for road users. In most countries, authorities responsible for road safety do not have performance intervention criteria and standards, and rely on fixed-time interval maintenance programs. This practice is undergoing change via the introduction of mobile retroreflectivity recording units. The focus of this study is to investigate the use of standard mobile retroreflectivity recording units and to analyse the observed retroreflectivity data to evaluate the state of pavement markings under investigation. The centreline pavement marking retrorefl/ectivity data collected by Queensland Department of Main Roads using the ECODYN mobile retroreflectivity recording unit are analysed to determine how the factors such as pavement surface type and traffic environment relate to retroreflectivity performance. It has been found that the mobile retroreflectivity recording unit with in-built processing capabilities can be implemented for identifying the requirements of maintenance programs, as well as to relate the observed retroreflectivity with other factors such as pavement surface type and traffic environment. The observed data indicated that there is a disparity between urban and rural roads of southeast Queensland in terms of centreline pavement marking retroreflectivity qualities. Asphalt surfaces, common in urban environments, were found to have average retroreflectivity over 200 mcd/m2/lux, whereas sprayed seal surfaces, common in rural environments, averaged below 170 mcd/m2/lux. About one-third of the roads used in the analysis fell below the generally accepted minimum threshold of 150 mcd/m2/lux at the time of observation.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C3.1 Non-refereed articles in a professional journal
Copyright notice ©2011, Engineers Media
Persistent URL http://hdl.handle.net/10536/DRO/DU:30048615

Document type: Journal Article
Collection: School of Engineering
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