RT info:eu-repo/semantics/article
T1 IRI Performance Models for Flexible Pavements in Two-Lane Roads until First Maintenance and/or Rehabilitation Work
A1 Pérez Acebo, Heriberto
A1 Linares Unamunzaga, Alaitz
A1 Rojí, Eduardo
A1 Gonzalo Orden, Hernán
K1 International Roughness Index
K1 IRI
K1 Pavement performance model
K1 Pavement management system
K1 Deterministic models
K1 Pavement management
K1 Deterioration models
K1 Two-lane roads
K1 Flexible pavements
K1 Ingeniería civil
K1 Civil engineering
K1 Transporte
K1 Transportation
AB Pavement performance models play a vital role in any pavement management system.The Regional Government of Biscay (RGB) (Spain) manages a 1200 km road network and conductspavement data collections, including the International Roughness Index (IRI) values. The aim of thepaper is to develop an IRI performance model for two-lane roads with flexible pavement until thefirst maintenance and/or rehabilitation activity is performed. Due to the huge amount of availableinformation, a deterministic model was selected. A literature review of deterministic models showedthat, apart from age and traffic volumes, the pavement structure is a key factor. Therefore, it wasdecided to analyze the only road stretches whose entire pavement section was known (surface layer+ base + subbase). Various variables related to age, traffic volumes and employed materials wereintroduced as possible factors. The multiple linear regression model with the highest coefficient ofdetermination and all the variables significant included the real pavement age, the cumulated heavytraffic and the total thickness of bituminous layers. As the material employed in the surface layercould affect roughness progression, a qualitative variable was introduced to consider various surfacematerials. The model improved its accuracy, indicating that the surface layer material is also aninfluencing factor on IRI evolution.
PB MDPI
YR 2020
FD 2020-01
LK http://hdl.handle.net/10259/7651
UL http://hdl.handle.net/10259/7651
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 19-abr-2024