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Evaluation of the LTL-M: mobile measurement of road marking
Swedish National Road and Transport Research Institute.
2010 (English)Report (Other academic)
Abstract [sv]

An equipment for mobile measurement of road marking retroreflectivity, the LTL-M, has been developed by DELTA Light & Optics in Denmark. This instrument uses a different optical principle than the mobile instrument commonly used until now, the Ecodyn 30. The optical system used by the LTL-M might lead to better accuracy and repeatability. By simultaneous measurements using the two mobile instruments and, as the reference, the hand-held LTL-2000, the accuracy and repeatability of the LTL-M and Ecodyn 30 were estimated. Measurements were carried out in the laboratory on road marking samples and in the field on continuous and broken edge lines. The conclusion of the study is that the LTL-M measures with less systematic and random errors compared to the Ecodyn 30. Furthermore, the repeatability of the LTL-M is better than the repeatability of the Ecodyn 30.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2010. , 27 p.
Series
VTI rapport, ISSN 0347-6030 ; 675A
Keyword [en]
Carriageway marking, Retroreflection, Measurement, Apparatus, Optical instrument, Evaluation, Test, Laboratory, In situ, Accuracy, Repeatability
National Category
Infrastructure Engineering
Research subject
Road: Maintenance
Identifiers
URN: urn:nbn:se:vti:diva-6526OAI: oai:DiVA.org:vti-6526DiVA: diva2:675407
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2014-09-18Bibliographically approved

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Lundkvist, Sven-Olof
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf