00642402

Component

http://onlinepubs.trb.org...trr/1993/1410/1410-014.pdf

https://scholar.google.co...baee&publication_year=1993

Weigh-in-motion systems have been used extensively to measure dynamic loads imparted by traffic vehicles. One of the major uses of these load data is to evaluate the equivalent single-axle loads (ESALs) generated by each load level. The cumulative ESALs are then used in the design or rehabilitation procedures, or both, for the existing road. In situ pavement response parameters, such as the strains at the bottom of the asphalt concrete layer, can also be used to evaluate ESALs. The findings of a research program aimed at evaluating the effect of vehicle speed on the measured dynamic loads and pavement response are documented. The data were measured through a full-scale field experiment. The analyses of the data indicated that vehicle speed has a significant effect on both the measured dynamic loads and the actual response of the pavement system. However, the effects of vehicle speed on dynamic loads and pavement response are not identical. For example, higher vehicle speed generates higher dynamic loads, whereas the strains at the bottom of the asphalt concrete layer are significantly reduced as the speed increases. This discrepancy has been shown to have a great impact on the final design of the pavement system.

This paper appears in Transportation Research Record No. 1410, Pavement Monitoring and Evaluation. 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

01403259

English

p. 107-114

1993

Transportation Research Record

0309055571

Figures (10) ; References (5) ; Tables (5)

Axle load force; Data analysis; Dynamic loads; Equivalent single axle loads; Field tests; Mathematical analysis; Motor vehicles; Pavement design; Speed; Traffic equivalence factor; Traffic speed

Field measurements

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

TRIS, TRB, ATRI

Feb 18 1994 12:00AM

• ACCREDITATION OF STRATEGIC HIGHWAY RESEARCH PROGRAM LONG-TERM PAVEMENT PERFORMANCE PAVEMENT DISTRESS RATERS
• ADAPTING AN AUTOMATED DATA COLLECTION DEVICE FOR USE AT AN AIRPORT
• APPARE: PERSONAL COMPUTER SOFTWARE FOR AUTOMATED PAVEMENT PROFILE ANALYSIS AND ROUGHNESS EVALUATION
• AUTOMATED VERSUS MANUAL PROFILOGRAPH CORRELATION
• CLUSTER ANALYSIS OF ARIZONA AUTOMATIC TRAFFIC RECORDER DATA
• COMPARISON OF PAVEMENT SURFACE DISTRESS MEASUREMENT SYSTEMS
• CONSISTENCY OF ROUGHNESS AND RUT DEPTH MEASUREMENT COLLECTED WITH 11 SOUTH DAKOTA ROAD PROFILERS
• FACTORS AFFECTING REPEATABILITY OF PAVEMENT LONGITUDINAL PROFILE MEASUREMENTS
• MAINTENANCE SKID CORRECTION PROGRAM IN UTAH
• OBTAINING RUT DEPTH INFORMATION FOR STRATEGIC HIGHWAY RESEARCH PROGRAM LONG-TERM PAVEMENT PERFORMANCE SITES
• RESULTS OF WEIGH-IN-MOTION PROJECT IN FRANCE: 1989-1992
• TRAFFIC SENSING SYSTEM FOR HOUSTON HIGH-OCCUPANCY VEHICLE LANES
• VEHICLE CONFIGURATION INFLUENCES ON WEIGH-IN-MOTION RESPONSE
• VIDEO CAMERAS FOR ROADWAY SURVEILLANCE: TECHNOLOGY REVIEW, TEST METHODS, AND RESULTS