Repurposed Markings: A New Tool for Curve Safety

Horizontal curves pose a significant roadway safety challenge, with crash rates nearly three times higher than on other geometries. Traditional measures, such as roadside warning signs, often have limited visibility and effectiveness. This project will conduct a quasi-experimental evaluation of horizontal signage—durable pavement markings installed within the driver’s line of sight—as a countermeasure for curve safety. Using a difference-in-differences (DID) approach with treatment and control sites the research team will assess safety effectiveness, durability, and cost-effectiveness of horizontal signage. The study will also incorporate Propensity Score Matching (PSM) to ensure balanced site comparisons. Outcomes will include evidence-based recommendations for potential inclusion in traffic control guidance, public datasets, and technical reports.

Language

• English

Project

• Status: Active
• Funding: $240,000.00
• Contract Numbers:

  69A3552344813

  69A3552348318

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  National Center for Infrastructure Transformation

  Prairie View A&M University
  Prairie View, TX  United States  77446
• Performing Organizations:

  Texas A&M Transportation Institute

  Texas A&M University System
  3135 TAMU
  College Station, TX  United States  77843-3135
• Principal Investigators:

  Dadashova, Bahar

• Start Date: 20260201
• Expected Completion Date: 20280131
• Actual Completion Date: 20280131
• USDOT Program: University Transportation Centers
• Source Data: 03-51-TTI

Subject/Index Terms

• TRT Terms: Recycled materials; Traffic safety
• Identifier Terms: Driver Behavior Questionnaire
• Subject Areas: Materials; Planning and Forecasting; Safety and Human Factors;

Filing Info

• Accession Number: 02001903
• Record Type: Research project
• Source Agency: National Center for Infrastructure Transformation
• Contract Numbers: 69A3552344813, 69A3552348318
• Files: UTC, RIP
• Created Date: Sep 10 2026 8:21AM