Citation

Faraggi V, Ocampo G. Proc. Int. Tech. Conf. Enhanced Safety Vehicles 1992; 1992: 291-298.

Copyright

(Copyright © 1992, In public domain, Publisher National Highway Traffic Safety Administration)

DOI

unavailable

PMID

unavailable

Abstract

The purpose of the research described in this article is to analyze the effects of maximum dual axle load variations upon concrete pavements in Chile. The study analyzes the deleterious effects of 6 different heavy vehicle configurations with axle load variations of between 10 and 13 tonnes. Seven different rigid pavement designs and thicknesses were used in the study. The changes in pavement condition are evaluated using the AASHTO method, using a final serviceability index of 2.5. The concept of "truckload Habit" (ie the set of commercial vehicle characteristics which influence the principal costs involved) is used when quantifying the influence of maximum axle loads limits upon the pavement damage produced by heavy vehicles. Traffic forecast figures are obtained for the National Road Directive and the variations of truckload habitat with different dual axle load limits are calculated using the Whiteside method. The savings which can be made in pavement construction and repair for each axle load are calculated and discussed.