01551517

Component

Managing urban pavements is a comprehensive task compared to interurban roads management given the complexity of urban networks, the coordination with various services and variable traffic demands. Performance models of urban streets over time are required for the life cycle assessment of pavement networks and their suitable management. Available models mostly have centered on modelling distresses common to interurban pavements at the project level. Given the complex scenario for municipalities and local agencies in charge of urban pavement maintenance and decision making, adaptable performance models that consider the combined effect of most relevant distresses in the overall urban paved network condition should therefore be developed. This study is part of a three year project being developed by the Pontificia Universidad Católica de Chile, which aims to develop a Management System for Urban Pavement Networks. In previous phases of the project a condition index for asphalt and concrete urban pavements was developed. The objective of this study is to present the development of performance models of this urban pavement condition index based on probabilistic trends observed from field evaluations. Five street hierarchies and three climates were defined and characterized, resulting in a 5x3 factorial for each pavement type. Four field evaluation campaigns were developed in three regions of Chile in a three year analysis period for the calibration and validation of performance models. The probabilistic trend over time was analyzed using Markov chains for different climates and pavement types. Two final curves of urban pavement performance were developed and satisfactory validated.

This paper was sponsored by TRB committee AFD10 Pavement Management Systems.

01550057

15-0427

English

19p

2015

Transportation Research Board 94th Annual Meeting

Digital/other

Figures; References; Tables

Field studies; Markov chains; Network analysis (Planning); Pavement management systems; Pavement performance; Urban highways; Validation

Chile

Highways; Maintenance and Preservation; Pavements; Planning and Forecasting; I61: Equipment and Maintenance Methods; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2015 Paper #15-0427

TRIS, TRB, ATRI

Dec 30 2014 12:16PM