00474336

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http://onlinepubs.trb.org...trr/1986/1060/1060-002.pdf

https://scholar.google.co...ield&publication_year=1986

Research was conducted at The University of Alabama for the State of Alabama Highway Department (AHD) to define the relationship between asphaltic pavement distress and the opinions of experienced highway maintenance engineers. Seasoned maintenance engineers evaluated a series of sites across the state to determine the required level of maintenance. Thirty-one inspectors rated 1,086 sites in terms of minor maintenance and overlays of structural rehabilitation. The ratings were based on a linear scale calibrated to maintenance needs through a Delphi study. Following the inspections, the engineers' ratings were correlated to distress measurements at each site. An extensive regression study produced a model that was strong, with an R-square value of 0.74 and a small standard error. The research staff and highway department engineers were quite pleased with the strength of this model. The AHD now measures pavement distress for a test section of each lane-mile, and applies the predictor model to yield a numerical score equivalent to the rating of maintenance engineers. This is the key to the required level of maintenance. It allows prompt tabulation of the required statewide maintenance, and development of a priority listing for completing the work.

Publication of this paper sponsored by Committee on Pavement Management Systems. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01419468

pp 9-16

1986

Transportation Research Record

030904054X

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Figures (1) ; Tables (3)

Asphalt pavements; Defects; Driver rehabilitation; Highway engineers; Inspectors; Mathematical models; Pavement distress; Pavement maintenance; Pavements; Ratings; Regression analysis; Strategic planning

Rehabilitation

Data and Information Technology; Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I61: Equipment and Maintenance Methods

TRIS, TRB

Oct 31 1987 12:00AM

• A COST-SAFETY COMPARISON OF ILLINOIS REHABILITATION DESIGN POLICIES
• A PAVEMENT FEEDBACK SYSTEM FOR THE ILLINOIS DEPARTMENT OF TRANSPORTATION: FEASIBILITY AND SYSTEM REQUIREMENTS
• AIRFIELD PAVEMENT EVALUATION AND MANAGEMENT AT DULLES INTERNATIONAL AIRPORT
• COMPARING DIFFERENT STRATEGIES FOR SELECTING PAVEMENT SECTIONS FOR MAJOR REPAIR
• DEVELOPMENT OF HEAVY-VEHICLE ELECTRONIC LICENSE PLATE CONCEPT
• EXPERIMENTAL AND FIELD INVESTIGATION OF THE INFLUENCE OF RELATIVE RIGIDITY ON THE PROBLEM OF REFLECTION CRACKING
• HOW GOOD IS THE HIGHWAY PERFORMANCE MONITORING SYSTEM? A COMPARISON WITH STATE RESULTS
• IMPACT OF A COMPREHENSIVE PAVEMENT MANAGEMENT SYSTEM DEVELOPED IN PENNSYLVANIA
• MECHANISTIC OVERLAY DESIGN PROCEDURES AVAILABLE TO THE DESIGN ENGINEER
• MODELING OF LIFE-CYCLE COSTS OF PAVEMENT REHABILITATION
• MULTIVARIATE ANALYSIS OF PAVEMENT DYNAFLECT DEFLECTION DATA
• NETWORK-LEVEL PAVEMENT CONDITION RATING: BALANCING QUALITY, QUANTITY, AND TIMELINESS
• PORTABLE SENSORS AND EQUIPMENT FOR TRAFFIC DATA COLLECTION
• PROJECT EVALUATION FOR OVERLAY SELECTION AND DESIGN
• THE DEVELOPMENT AND IMPLEMENTATION OF THE AUSTRALIAN ACCELERATED LOADING FACILITY PROGRAM
• THE SOUTH DAKOTA BRIDGE WEIGH-IN-MOTION SYSTEM
• WEIGH-IN-MOTION SAMPLING PLAN FOR TRUCK-WEIGHT DATA IN TEXAS: METHOD AND PLAN DEVELOPMENT