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Champion(s)
TAMP Strategies for Assessing and Incorporating Continuous Pavement Friction Measurement
Funding
Research Period
Description
In February 2024, TAM Webinar 67 presented the findings from a research effort to understand "How Pavement and Bridge Conditions Affect Transportation System Performance." (https://ops.fhwa.dot.gov/publications/fhwahop22077/fhwahop22077.pdf) Among the paper's findings were that (1) "A TAMP program manager is likely to focus on IRI values, rutting, cracking, and faulting because those relate to the measures and targets the TAMP must address. However, research indicates that in many cases, it is friction and not those metrics that drive pavement-related crash reduction," and (2) "[D]ata from Continuous Pavement Friction Measurement (CPFM), combined with crash data and road characteristics, provide significant insight regarding whether friction improvements may reduce crashes." The authors call on stakeholders to use "today's unparalleled access to data" to deliver a risk-based TAMP development process that can optimize and "simultaneously enhance asset conditions and system performance." CPFM is still an emerging method of measuring and monitoring pavement friction within the United States despite being the dominant method of managing pavements for safety outside of the United States. Accordingly, there are benefits to providing the US TAMP community with guidance, tools, and best practices on how to effectively link pavement management and safety using CPFM. Specifically, TAMP staff considering whether to pursue the findings highlighted TAM Webinar 67 may benefit from strategies to set pavement friction measurement targets and determine appropriate pavement friction performance measures, guidance on various treatments’ dual impacts on pavement condition and safety, as well as tools and strategies to coordinate effective pavement friction management implementation in partnership with an agency’s safety and pavement management programs.
Literature Search Summary
Objectives
In February 2024, TAM Webinar 67 presented the findings from a research effort to understand "How Pavement and Bridge Conditions Affect Transportation System Performance." (https://ops.fhwa.dot.gov/publications/fhwahop22077/fhwahop22077.pdf) Among the paper's findings were that (1) "A TAMP program manager is likely to focus on IRI values, rutting, cracking, and faulting because those relate to the measures and targets the TAMP must address. However, research indicates that in many cases, it is friction and not those metrics that drive pavement-related crash reduction," and (2) "[D]ata from Continuous Pavement Friction Measurement (CPFM), combined with crash data and road characteristics, provide significant insight regarding whether friction improvements may reduce crashes." The authors call on stakeholders to use "today's unparalleled access to data" to deliver a risk-based TAMP development process that can optimize and "simultaneously enhance asset conditions and system performance." CPFM is still an emerging method of measuring and monitoring pavement friction within the United States despite being the dominant method of managing pavements for safety outside of the United States. Accordingly, there are benefits to providing the US TAMP community with guidance, tools, and best practices on how to effectively link pavement management and safety using CPFM. Specifically, TAMP staff considering whether to pursue the findings highlighted TAM Webinar 67 may benefit from strategies to set pavement friction measurement targets and determine appropriate pavement friction performance measures, guidance on various treatments’ dual impacts on pavement condition and safety, as well as tools and strategies to coordinate effective pavement friction management implementation in partnership with an agency’s safety and pavement management programs.