The effects of increased truck loads and higher tire pressures on performance of flexible pavements were investigated in this project. This Volume 1 report presents the research performed and the useful results obtained. Tire pressure studies were performed using both in field measurements and theoretical simulations of the effects of tire pressures on pavements. Volume 2, provides documentation for all of the computer programs developed on the project.

Weather conditions in Arizona can find you driving in sunny, moderate climates of the low desert to ice and snow of the mountain regions in a couple of hours. The Arizona Department of Transportation wants to make sure that your travel throughout the state is safe and enjoyable, no matter what the climate. We offer the enclosed winter driving information to ensure that you save the slipping and sliding for the slopes and not the roadways.