A simplified application of fuzzy set theory for the evaluation of pavement roughness

Loizos, A

dc.contributor.author	Loizos, A	en
dc.date.accessioned	2014-03-01T01:16:04Z
dc.date.available	2014-03-01T01:16:04Z
dc.date.issued	2001	en
dc.identifier.issn	10375783	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13900
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0142040188&partnerID=40&md5=ad7f428aac41f5d1bc52661ebe2b1e04	en
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0142040188&partnerID=40&md5=ad7f428aac41f5d1bc52661ebe2b1e04	en
dc.subject.other	Fuzzy sets	en
dc.subject.other	Laser applications	en
dc.subject.other	Regression analysis	en
dc.subject.other	Roads and streets	en
dc.subject.other	Pavement roughness	en
dc.subject.other	Pavements	en
dc.title	A simplified application of fuzzy set theory for the evaluation of pavement roughness	en
heal.type	journalArticle	en
heal.publicationDate	2001	en
heal.abstract	Pavement roughness is a measure of ride quality. It maybe objectively measured by devices such as laser profilers and expressed in indices such as the International Roughness Index (IRI). However the ride quality to which roughness may be related may be subjectively estimated by panel ratings which provide the perception of road users on the quality of the pavements. Considering recent research there is a need to link these two items, i.e. roughness and ride quality, for example by developing suitable models. However the ambiguity included in the panel ratings requires special consideration. Fuzzy set theory is an approach by which such ambiguity may be taken into account in the development of such a model. This paper uses such an approach in a simplified manner and shows how subjective panel ratings can be correlated to objective technology-based measurements of roughness. A regression analysis is also used to evaluate the models developed, which is based on the data sets considered. The findings of the present work show that the application of fuzzy set theory provides an enhanced method of considering subjective data acquired from panels of road users in the development of models that link road travel quality with roughness.	en
heal.journalName	Road and Transport Research	en
dc.identifier.volume	10	en
dc.identifier.issue	4	en
dc.identifier.spage	21	en
dc.identifier.epage	32	en