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Repeatability in crack data collection on flexible pavements: comparison between surveys using video cameras, laser cameras and a simplified manual Survey
Högskolan Dalarna, Akademin Industri och samhälle, Vägteknik.
2005 (engelsk)Inngår i: Journal of transportation engineering, ISSN 0733-947X, E-ISSN 1943-5436, Vol. 131, nr 7, s. 552-562Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Crack data can be collected using manual or automatic surveys. Traditionally, manual methods are used, and they are still the most common. Changing into automatic systems will enhance the efficiency of data collection as well as the objectivity. In this study the repeatability of an automatic crack data collection system using video images was evaluated. Ten repetitive measurements were made on a 10-km-long road section. Cracking was measured using six laser cameras attached to the same vehicle. The results from the two methods were compared. Simultaneously, a simplified manual windshield survey was conducted by three different persons, and the repeatability obtained was used for comparison with the repeatability established using the image and laser method, respectively. The correlation between repeated measurements using the two automatic systems was high, while the repeatability for the manual, subjective method was low. Suitable measures for crack characterization are discussed.

sted, utgiver, år, opplag, sider
2005. Vol. 131, nr 7, s. 552-562
Emneord [en]
cracking, automatic identification systems, data collection, image analysis, flexible pavements, surveys
HSV kategori
Forskningsprogram
Komplexa system - mikrodataanalys
Identifikatorer
URN: urn:nbn:se:du-665DOI: 10.1061/(ASCE)0733-947X(2005)131:7(552)ISI: 000230060700008OAI: oai:dalea.du.se:665DiVA, id: diva2:519415
Tilgjengelig fra: 2004-12-09 Laget: 2004-12-09 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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