A large number of sensors installed as part of the European cooperative project, Eureka Logchain Footprint, are used to examine the effects of individual vehicles on the road pavement and the environment. The weigh-in-motion data recorded at the Footprint Monitoring Site near Lenzburg, Switzerland are analyzed and figures are presented which describe the nature of the traffic experienced at the monitoring site. The weigh-in-motion data are matched to data from a prototype stress-in-motion sensor from the same site and the two datasets are compared. The ability of the stress-in-motion sensor to record the contact stress distribution is discussed and procedures are proposed for describing the shape of the distribution using a relatively small number of parameters. A method for quantifying distribution shape in terms of an “m”-ness value is proposed. A finite element model of the road is constructed, validated, and used to predict the stresses and strains in the pavement related to particular contact stress distributions. It is demonstrated that, for all but the heaviest tires, the shape of the stress distribution has a significant effect on the stresses and strains within the pavement.
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