Analysis and Forecast of Truck Traffic Loads and the Relative Damage to Pavement Systems as a Function of Axle Configurations

摘要

The primary objective of the study is to evaluate the effects of truck sizes, weights, and tire pressures on pavement deterioration. This is achieved through evaluation of the following three scenarios. (a) a base scenario characterized by the entire vehicle fleet operating within currently prescribed weight limits and pre-1974 tire pressures. (b) an existing-traffic scenario characterized by 1984 SDHPT weight-survey data along with vehicle tire pressure data from recent research studies. (c) a future-traffic scenario in which vehicle configurations are modified to redistribute the loads in an attempt to reduce pavement damage.