Title: Long-Term Pavement Performance Pavement Loading User Guide (LTPP PLUG)
Description: This guide addresses the selection and use of axle loading defaults for Mechanistic-Empirical Pavement Design  Guide (MEPDG) applications. The defaults were developed based on weigh-in-motion (WIM) data from the Long-  Term Pavement Performance (LTPP) Special Pavement Study (SPS) Transportation Pooled Fund Study (TPF). The  guide consists of two parts. The first part provides guidelines for selecting and using LTPP SPS TPF axle loading  defaults with the MEPDG and DARWin-ME software. These defaults provide a source of axle loading information  for pavement analysis for locations where site-specific axle load spectra are not available. The second part of the  guide provides practical guidelines that States and LTPP can use to generate additional MEPDG traffic loading  defaults based on their own WIM data or for specific analysis purposes. In addition, this guide contains an  operator's manual that supports the use of the LTPP PLUG software. This software helps users select site-specific  or default axle loading conditions from its traffic loading library and produces axle load distribution input files for  use with the MEPDG or DARWin-ME software. The software can be used to store, view, and group multiple  normalized axle load spectra (NALS) and to develop MEPDG inputs and defaults using agency-provided data.
Subjects: Pavements, Performance, Testing, Computer programs, Motor vehicles, Weight, Long-Term Pavement Performance Program (U.S.)
Places: United States