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Title: USING PAVEMENT MANAGEMENT SYSTEM CONCEPTS TO DETERMINE THE COST AND IMPACT OF UTILITY TRENCHING ON AN URBAN ROAD NETWORK
Accession Number: 00798872
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: The results are presented from a 2-year study on the impact of utility trenching on urban flexible road network pavement roughness, pavement surface distress, structural carrying capacity, pavement life cycle, rehabilitation and maintenance requirements, and the costs associated with these impacts in Ottawa-Carleton, Canada. Included are the pavement performance and life-cycle relationships developed using modified methodologies to address concerns raised by reviews carried out by Construction Technology Laboratories Inc. and the National Research Council of Canada on utility trenching studies to date. In this study, normalized individual pavement section life cycle, a composite pavement quality indicator, and performance prediction models calibrated with numerous years of field data were used in the life-cycle and pavement performance determination. These modifications made to the conventional pavement management system when used to determine the impact of utility trenching are shown to provide performance and life-cycle relationships with better correlation than algorithms used in the previous studies. In this study, very high coefficients of determination (R-squared) of 0.79 to 0.85 were obtained for the pavement performance and life-cycle relationships regressed from field data for quantification of urban road network pavement with and without the impact of utility trenching. The factors and costs associated with the impact of utility trenching, such as reduction in pavement life cycle, additional cost for subgrade base repair, pavement strengthening requirements from loss of fatigue structural carrying capacity, and the additional area affected beyond the trenched area, are also quantified in this study.
Supplemental Notes: This paper appears in Transportation Research Record No. 1699, Pavement Management and Monitoring.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: LEE, SQSLauter, K APagination: p. 33-41
Publication Date: 2000
Serial: ISBN: 0309066778
Features: Figures
(3)
; References
(8)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Design; Finance; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB
Created Date: Sep 7 2000 12:00AM
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