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Your requested file "Selected AIMS Data" is ready for download. Click Download to proceed.
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Standard Data Release
The world's largest and most comprehensive pavement performance database is at your fingertips with the Standard Data Release (SDR) from the Federal Highway Administration's (FHWA) Long-Term Pavement Performance (LTPP) program. The data is primarily available in Microsoft Access® format with larger tables that require tens of Access tables to distribute provided in SQL Server format. Users requiring less than complete sets by data type or agency should consider the Data Selection and Download options to pre-select data for analysis.
This is not the latest LTPP Standard Data Release. It should be noted that multiple revisions and corrections have happened since previous releases.
The latest release (SDR 31) provides the most complete and accurate LTPP data. This previous release has been provided as a reference for past research conducted using LTPP data.
Disclaimer: The MERRA climatic data included in the LTPP Standard Data Release #29 may not be correctly normalized for the local time zone. This may impact analysis specifically using the hourly data. An updated dataset with local time zone normalization is expected to be available in July 2016. Please contact LTPP Customer Support at ltppinfo@dot.gov if you have any questions.
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