详情

Verification, Refinement, and Applicability of Long-Term Pavement Performance (LTPP) Classification Scheme

项目名称：	Verification, Refinement, and Applicability of Long-Term Pavement Performance (LTPP) Classification Scheme
摘要：	The Transportation Research Board (TRB) Expert Task Group (ETG) on Long-Term Pavement Performance (LTPP) Traffic Data Collection and Analysis (or Traffic Expert Task Group (Traffic ETG)) identified the inconsistencies in the classification data as problematic. Therefore, under the LTPP Specific Pavement Study (SPS) Traffic Data Collection Pooled-Fund Study, TPF-5(004), the Traffic ETG developed a prototype classification scheme to be used in an effort to bring uniformity to the SPS traffic data collection. It was developed based on the experience of three States. The appropriateness of the application of the LTPP Classification Scheme needs to be done while the SPS data collection is still underway. This is very important research because binned class data cannot be reprocessed into different results. Implementing this national class scheme forms a basis for better data sharing among States. A better understanding of the classification scheme variability will allow pavement designers to account for this in their use of the data. Improved vehicle classification will result in better roadway designs as many States are using classification data in lieu of weight data at many locations. The Mechanistic-Empirical Pavement Design Guide depends upon accurate vehicle classification data. Studies that use traffic data will be impacted by these findings.
状态：	Completed
资金：	$275002
资助组织：	Federal Highway Administration
项目负责人：	Walker, Deborah
执行机构：	Applied Research Associates, Incorporated
开始时间：	20090910
实际结束时间：	20121231
主题领域：	Data and Information Technology；Highways；Pavements