Maximize Roadway Safety with Pavement Friction Data

The role of DOTs in pavement friction management

For decision-makers at departments of transportation (DOTs), managing pavement friction is a critical mandate. Ensuring that road surfaces maintain adequate friction directly impacts crash prevention, infrastructure durability and effective resource allocation. By leveraging advanced friction metrics, DOTs can accurately identify high-risk areas and deploy targeted safety interventions. This proactive, data-driven approach maximizes the return on government investments, extends pavement life and maintains public safety across transportation networks.

Friction data is essential for safe vehicle operation, specifically steering, braking and acceleration. Insufficient friction elevates crash rates, particularly at curves and intersections. DOTs utilize this data to deploy friction remediation techniques precisely where crash risks are highest, improving roadway safety and reducing overall infrastructure costs.

Yet DOT engineers are often concerned about testing pavement surfaces for friction in fear of litigation and liability risk. However, departments of transportation benefit from robust federal protections that encourage comprehensive friction data collection and internal safety analysis. Under Federal Law 23 USC 407, data and reports compiled solely for the purpose of developing, implementing or evaluating federal highway safety enhancement programs are expressly protected from being used as evidence in federal or state court proceedings arising from civil actions for damages. This statute is designed to foster a candid and thorough safety review process, shielding agencies from legal exposure when they identify areas for improvement.

Further strengthening these protections, Federal Law 23 USC 409 prevents the discovery or admission into evidence of highway safety data, reports or surveys used for hazard identification or prioritization programs. The intent is to ensure that DOTs and similar agencies can openly assess roadway risks and implement corrective actions without fearing that their proactive measures will become a source of litigation or liability in court. This statutory framework enables transparent internal audits and supports a culture of continuous safety improvement across transportation networks. 

Ultimately, the physical risks of insufficient friction data far outweigh potential threats of litigation. Decision-makers must prioritize comprehensive, proactive data collection to maintain roadway safety and operational efficiency.

DOTs play a strategic role in public safety and infrastructure reliability by investing in and using modern friction testing technologies. Incorporating real-time friction data into pavement management not only reduces traffic accidents but also bolsters public trust in transportation agencies’ commitment to maintaining safer roads.