The data files, images, and videos that are part of the LTPP data collection that supplement the Pavement Performance Data Base (PPDB) are called Ancillary Information Management System (AIMS) data. This data is now available for view and download through LTPP InfoPave. The distress images and roadway videos are provided under Visualization. The distress images are also available in ‘Section Timeline’ under Visualization. The data files (such as M&R, FWD and Profile files) are available for download using Ancillary Data Selection and Download under Data.
Once the sections are selected with ‘Find Sections’ in the ‘Data Selection and Download’ feature, under ‘Structure,’ the tables under the ‘Material’ group will have all the available material information regarding the selected sections. In order to make sure you are looking at the complete list of material tables, check the ‘Show Advanced Data Classification’ option.
The "Traffic" class of the "Data Selection and Download" feature lists all the traffic tables that have traffic information. In order to make sure you are looking at the complete list of traffic tables, check the "Show Advanced Data Classification" option. You may also choose to narrow down your sections using "Find Sections" before selecting the data to get your desired data set.
The Section Summary Reports feature under Data is the best way to review performance data of an LTPP section. Under the "Graphs" tab of this summary report, you will see graphs of the major pavement performance information as a function of time. If you are interested in downloading the numerical data, you can use the “Go To” feature to go to the "Data Selection and Download" feature under Data and select the respective tables under "Performance." In order to make sure you are looking at the complete list of performance tables, check the "Show Advanced Data Classification" option.
Once the sections are selected with “Find Sections”, open “Performance” and expand the JPCP tables under the Pavement Distress class to see the manual distress and faulting tables. To see other tables, click on "Show Advanced Data Classification.
Use the “Data Selection and Download” feature and expand the “Performance” class. The Backcalculation and Deflection class has the Deflection Data tables.
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