U.S. Department of Transportation
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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
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Publication Number: FHWA-RD-02-071
Date: March 2005
Study of LTPP Pavement Temperatures
There are no specific changes in temperature reading or recording protocol that are needed. Most of the errors are simple human errors. If anything, simple checks of reasonableness may help minimize data errors in the future. One method would be to devise a filtering process that would give a graphical view of the IR data, and allow the manual temperature data to be entered and displayed at the same time. Significant errors can be spotted in this way; this procedure is similar to the data screening carried out in this project.
One intra-module check could be added that would guard against having meaningless IR data for subgrade and granular surfaces, if any remain to be tested. The check could be worded as follows:
Topics: research, infrastructure, pavements and materials
Keywords: research, infrastructure, pavements and materials,Infrared temperature, pavement temperature, BELLS, FWD, falling weight deflectometer, LTPP, Long-Term Pavement Performance, temperature errors.
TRT Terms: research, facilities, transportation, highway facilities, roads, parts of roads, pavements