摘要: |
The objective of this study is to gather data on pavement performance from FHWA's Long-Term Pavement Performance (LTPP) study. The sections will be selected such that they provide enough time-series information to obtain reliable pavement performance trends. Once the data are collected, the various pavement sections will be modeled using mechanistic-empirical principles and they performance will be predicted. The Mechanistic Empirical Pavement Design Guide (MEPDG) will be used for this purpose. In addition, empirical performance models will be developed to capture the performance (and in particular the differential performance) of the various sections. Once these two types of performance models are available, we will compare the effectiveness of the three types of sections. |