Early Analyses of Long-Term Pavement Performance General Pavement Studies Data: Lessons Learned and Recommendations for Future Analyses

摘要

The purpose of this volume is to share the experience gained and lessons learned by the research staff during these early data analyses, and to recommend procedures for future analysts. In order to share the experience, a review is provided of the techniques used (and reported in detail in Volumes 3 and 4). Shortcomings of the LTPP Data Base available for the early analyses are discussed, and the data base expectations for future analyses were identified. Some interesting and useful distress and roughness prediction models were developed that show the effects of several design variables. During the course of the research, a number of other analytical procedures for developing predictive equations were identified that might be of use in future analyses. These are identified and described briefly. Ten techniques used by the research staff for evaluating the AASHTO design equations are identified, and recommendations for future evaluations of design equations are provided. (Copyright (c) 1994 National Academy of Sciences.)