Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/26302

TitleThe analysis of variability of pavement indicators : MPD, SMTD and IRI. A case study of Portugal roads
Author(s)Freitas, Elisabete F.
Freitas, Carina
Braga, A. C.
KeywordsVariability
Repeatability
Reproducibility
Mean profile depth
Sensor measured texture depth
International roughness index
ANOVA
Issue date2014
PublisherTaylor & Francis
JournalInternational journal of pavement engineering
Abstract(s)Macrotexture is one of the main pavement quality parameters considered in Portuguese Quality Control Plans which is not specifically addressed in data variability analysis studies. In this paper the ANOVA – Full Factorial method was used to analyse the variability of the Mean Profile Depth, the Sensor Measured Texture Depth and also the International Roughness Index. The ANOVA is appropriated to assess some sources of variation like repeatability and reproducibility and allow for the investigation of the contribution of several factors and interaction between them on the variability of a performance parameter. In this study data from five profilometers running on six long road sections was used. The investigated parameters were type of surface, operator and system and run repetition. Repeatability results were different for each parameter and factors analysis points to the necessity to further investigate the effect of the type of surface on data variability. The development of an operational plan to assure reproducibility is required.
TypeArticle
Description"Published online: 14 Jun 2013"
URIhttp://hdl.handle.net/1822/26302
DOI10.1080/10298436.2013.807343
ISSN1029-8436
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:C-TAC - Artigos em Revistas Internacionais

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