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Effect of Heavy Vehicle Suspensions on Dynamic Road Loading
Published January 01, 1980 by Verlag Des Verein Deutscher Ingenieure GmbH in Germany
The assessment of the effect of heavy vehicle traffic on road pavements is currently based on equivalent numbers of repetitions of standard axle masses required to produce a certain level of distress in the road. This is not a function of the vehicle design features other than the load-carrying capacity. Although this equivalency approach was developed for the purposes of pavement design, the same equivalency basis is increasingly being applied to economic evaluations of road transport operations. In these applications, where it is necessary to predict the performance of an existing road system subjected to the operation of larger and heavier vehicles, it may no longer be appropriate to neglect certain characteristics of the vehicles themselves. The heavy vehicle suspension, which determines the relationship between the axle mass and the damaging force experienced by the pavement, is one of the first areas requiring investigation.