Investigating the feasibility of integrating pavement friction and texture depth data in modeling for INDOT PMS.
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2012-11-01
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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance
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Abstract:Under INDOT’s current friction testing program, the friction is measured annually on interstates but only once every three years on noninterstate
roadways. The state’s Pavement Management System, however, would require current data if friction were to be included in
the PMS. During routine pavement condition monitoring for the PMS, texture data is collected annually. This study explored the
feasibility of using this pavement texture data to estimate the friction during those years when friction is not measured directly. After
multiple approaches and a wide variety of ways of examining the currently available data and texture measuring technologies, it was
determined that it is not currently feasible to use the texture data as a surrogate for friction testing. This is likely because the lasers
used at this time are not capable of capturing the small‐scale pavement microtexture. This situation may change, however, with
advances in laser or photo interpretation technologies and improved access to materials data throughout the INDOT pavement network.
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