详情

原文传递 Impact of Changing Traffic Characteristics and Environmental Conditions on Performance of Pavements. Technical rept. (Sept 1999 - Aug 2000).

题名：	Impact of Changing Traffic Characteristics and Environmental Conditions on Performance of Pavements. Technical rept. (Sept 1999 - Aug 2000).
作者：	HUDSON, W. R.; KAWA, I.; ZHANG, Z.
关键词：	Pavements-; Performance-evaluation.;Pavement-loading; Pavement-damage; Research-projects; Pavement-design; Texas-; Environmental-factors; Traffic-characteristics.
摘要：	Critical to the AASHTO pavement design methods are the AASHTO load equivalency factors (LEFs), which are used to convert the mixed traffic axle loads into standard 18-kip equivalent single axle loads (ESALs). Over the years the composition and characteristics of traffic using Texas highways have changed. At the same time, NAFTA has accelerated such changes in the sense that more trucks, primarily moving through mid-western states, Texas, and Mexico, are traveling on Texas highways. In addition, the original AASHO Road Test was conducted at a site whose environmental conditions significantly differ from those environmental conditions found in Texas. It is therefore critical to fully understand the impact of such changing traffic characteristics and environmental conditions on pavements in Texas. This report (1) presents the methodology used to analyze the impact of these factors on the AASHTO LEFs and (2) discusses the results.
报告类型：	科技报告