Conduct Friction Testing Program, Data Analysis, and Effectiveness of Open Graded Friction Course

Biswas, B S Pushpendue; Tarefder, Rafi

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Conduct Friction Testing Program, Data Analysis, and Effectiveness of Open Graded Friction Course

2026-05-25
By Biswas, B S Pushpendue ; Tarefder, Rafi

File Language:

English

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Creators:

Biswas, B S Pushpendue ; Tarefder, Rafi
Corporate Creators:

University of New Mexico. School of Civil Engineering
Corporate Contributors:

New Mexico. Department of Transportation. Research Bureau
Subject/TRT Terms:

Analysis Decision Making Friction Locked Wheel Skid Trailer Mathematical Prediction Monitoring Pavement Condition Pavement Friction Risk Assessment Skid Number Skid Resistance Tests SN Thresholds
Publication/ Report Number:

456-773
Resource Type:

Tech Report
Geographical Coverage:

United States ; New Mexico
Edition:

Final Report: 6/24/2022– 6/23/2026
Corporate Publisher:

New Mexico. Department of Transportation. Research Bureau
Abstract:

This report evaluates the use of skid number (SN) data for pavement friction management in New Mexico. The study reviews current pavement friction practices, consolidates historical NMDOT Locked Wheel Skid Trailer (LWST) data, develops roadway class specific SN thresholds, and assesses SN variability, risk, and monitoring adequacy. SN records were organized by road class, route, year, and milepost to support repeat location analysis. Safety based thresholds were developed using long term SN trends, CRR SN relationships, texture depth, directional SN behavior, seasonal variation, machine learning prediction, and geometric component assessment. Recommended base thresholds are SN = 40 for Interstate highways and SN = 38 for US and NM State highways, with higher thresholds for selected geometric components. There thresholds values were employed to monitor different locations using proximity analysis, reliability index, risk classification, monitoring adequacy, and Monte Carlo simulation. Results show higher SN risk on Interstate locations in New Mexico, especially on several I-40 segments. These threshold values should be used for NMDOT decision making for monitoring, maintenance prioritization, and future SN management.
Format:

PDF
Funding:

C06370
Collection(s):

Federal Highway Administration
Main Document Checksum:

urn:sha-512:2e3025471a4b229f2a21d68d49123c3c57979caad9f9575ca9b88827b07c4ece24c62368d6b794192908839509bf38a3e305ba939940d7eeb8fc09fc4270b8f8
Download URL:

https://rosap.ntl.bts.gov/view/dot/92450/dot_92450_DS1.pdf
File Type:

[PDF - 10.02 MB ]

File Language:

English

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