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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

    Source: Journal of Transportation Engineering, Part A: Systems:;2005:;Volume ( 131 ):;issue: 007
    Author:
    Petra Offrell
    ,
    Leif Sjögren
    ,
    Rolf Magnusson
    DOI: 10.1061/(ASCE)0733-947X(2005)131:7(552)
    Publisher: American Society of Civil Engineers
    Abstract: 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.
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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

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    http://yetl.yabesh.ir/yetl1/handle/yetl/37774
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    • Journal of Transportation Engineering, Part A: Systems

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    contributor authorPetra Offrell
    contributor authorLeif Sjögren
    contributor authorRolf Magnusson
    date accessioned2017-05-08T21:04:39Z
    date available2017-05-08T21:04:39Z
    date copyrightJuly 2005
    date issued2005
    identifier other%28asce%290733-947x%282005%29131%3A7%28552%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/37774
    description abstractCrack 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.
    publisherAmerican Society of Civil Engineers
    titleRepeatability in Crack Data Collection on Flexible Pavements: Comparison between Surveys Using Video Cameras, Laser Cameras, and a Simplified Manual Survey
    typeJournal Paper
    journal volume131
    journal issue7
    journal titleJournal of Transportation Engineering, Part A: Systems
    identifier doi10.1061/(ASCE)0733-947X(2005)131:7(552)
    treeJournal of Transportation Engineering, Part A: Systems:;2005:;Volume ( 131 ):;issue: 007
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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