2019 Road Weather Management Performance Measures Update

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Contact Information: Operations Feedback at OperationsFeedback@dot.gov

U.S. Department of Transportation
Federal Highway Administration
Office of Operations
1200 New Jersey Avenue, SE
Washington, DC 20590
ops.fhwa.dot.gov

FHWA-HOP-19-089

September 2019

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Table of Contents

[ Notice and Quality Assurance Statement ] | [ Technical Report Documentation Page ] | [ List of Acronyms ]

• Executive Summary
  • Road Weather Management Impacts
  • Application of Road Weather Management Tools and Technologies
  • Road Weather Management Capacity Building
  • Partnerships and Stakeholder Collaboration
  • Conclusions
• Chapter 1. Introduction
  • Objectives of the Report
  • Road Weather Management Program Goals, Objectives, and Key Products
  • Research Approach
  • Performance Measure Mapping
  • Organization of the Report
• Chapter 2. Road Weather Management Impacts Assessment
  • Overview
  • Performance Findings
• Chapter 3. Application of Road Weather Management Tools and Technologies
  • Overview
  • Performance Findings
• Chapter 4. Road Weather Management Capacity Building
  • Overview
  • Performance Findings
• Chapter 5. Partnerships and Stakeholder Collaboration
  • Overview
  • Performance Findings
• Chapter 6. Recommendations and Conclusions
• Appendix A: State Department of Transportation Survey
• Appendix B: Findings by Measure

List of Figures

• Figure 1. Map. States that responded to the 2019 Road Weather Management State DOT Survey.
• Figure 2. Graph. Percentage of agencies that collect and report road weather performance measures.
• Figure 3. Graph. Percentage of agencies surveyed that use a "winter severity index" to compare performance across events or years.
• Figure 4. Graph. Percentage of agencies surveyed with a process for evaluation the return on investment or net benefit of their road weather management investments.
• Figure 5. Graph. Nationwide salt usage by year (in millions of tons of salt).
• Figure 6. Graph. National expenditures for snow and ice removal, 2001-2016 (in thousands of dollars).
• Figure 7. Graph. Fatal crash rates per thousand licensed drivers, 2001-2017.
• Figure 8. Graph. Fatal crash rates per billion vehicle miles traveled, 2001-2017.
• Figure 9. Graph. Percentage of States that subscribe to weather and road weather products and services.
• Figure 10. Graph. Percentage of agencies collecting real-time field data from maintenance vehicles.
• Figure 11. Graph. Number of agencies answering the question "Which of the following data are collected from the maintenance vehicles, and from what percentage of the applicable fleets?"
• Figure 12. Graph. Use of Environmental Sensor Stations (ESS) at State departments of transportation.
• Figure 13. Graph. Percentage of State DOTs indicating use and non-use of Maintenance Decision Support Systems (MDSS).
• Figure 14. Graph. Percentage of State DOTs using weather-related decision support tools for road weather management.
• Figure 15. Graph. Percentage of State DOTs Using weather-responsive traffic analysis and simulation tools for planning and evaluating road weather management.
• Figure 16. Chart. Survey responses on the use of vehicle-to-infrastructure or infrastructure-to-vehicle connectivity.
• Figure 17. Graph. Percentage of agencies involved in extreme weather or resilience activities.
• Figure 18. Graph. States participating in road weather management meetings.
• Figure 19. Graph. Number of agencies participating in road weather research and development projects.
• Figure 20. Graph. Level of coordination between State DOTs and NWS local forecast offices.
• Figure 21. Chart. Responses from State department of transportation survey question 4.
• Figure 22. Chart. Responses from State department of transportation survey question 5.
• Figure 23. Chart. Responses from State department of transportation survey question 6.
• Figure 24. Graph. Responses from State department of transportation survey question 7.
• Figure 25. Graph. Responses from State department of transportation survey question 8.
• Figure 26. Chart. Responses from State department of transportation survey question 8.
• Figure 27. Graph. Responses from State department of transportation survey question 9.1.
• Figure 28. Chart. Responses from State department of transportation survey question 10.
• Figure 29. Graph. Responses from State department of transportation survey question 11.
• Figure 30. Chart. Responses from State department of transportation survey question 11.1.
• Figure 31. Chart. Responses from State department of transportation survey question 12.
• Figure 32. Graph. Responses from State department of transportation survey question 12.1.
• Figure 33. Graph. Responses from State department of transportation survey question 13.
• Figure 34. Chart. Responses from State department of transportation survey question 14.
• Figure 35. Chart. Responses from State department of transportation survey question 15.
• Figure 36. Graph. Responses from State department of transportation survey question 16.
• Figure 37. Graph. Responses from State department of transportation survey question 17.
• Figure 38. Graph. Responses from State department of transportation survey question 18.

List of Tables

• Table 1. Data Sources, Related Activities, and Strengths and Weaknesses of Each Performance Measure.
• Table 2. Performance Measure Mapping.
• Table 3. Meetings with Road Weather Program Representation, 2017-2019.
• Table 4. State DOT Survey Question 4 and Associated Reponses.
• Table 5. State DOT Survey Question 5 and Associated Reponses.
• Table 6. State DOT Survey Question 6 and Associated Reponses.
• Table 7. State DOT Survey Question 7 and Associated Responses.
• Table 8. State DOT Survey Question 7.1 and Associated Responses.
• Table 9. State DOT Survey Question 8 and Associated Responses.
• Table 10. State DOT Survey Question 8.1 and Associated Responses.
• Table 11. State DOT Survey Question 9 and Associated Responses.
• Table 12. State DOT Survey Question 9.1 and Associated Responses.
• Table 13. State DOT Survey Question 5 and Associated Reponses.
• Table 14. State DOT Survey Question 10 and Associated Reponses.
• Table 15. State DOT Survey Question 11.1 and Associated Responses.
• Table 16. State DOT Survey Question 12 and Associated Responses.
• Table 17. State DOT Survey Question 12.1 and Associated Responses.
• Table 18. State DOT Survey Question 13 and Associated Responses.
• Table 19. State DOT Survey Question 14 and Associated Responses.
• Table 20. State DOT Survey Question 15 and Associated Responses.
• Table 21. State DOT Survey Question 16 and Associated Responses.
• Table 22. State DOT Survey Question 17 and Associated Responses.
• Table 23. State DOT Survey Question 18 and Associated Responses.
• Table 24. State DOT Survey Question 12 and Associated Responses.
• Table 25. Summary of Objective #1 Performance Measures.
• Table 26. Summary of Objective #2 Performance Measures.
• Table 27. Summary of Objective #3 Performance Measures.
• Table 28. Summary of Objective #4 Performance Measures.
• Table 29. Summary of Objective #5 Performance Measures.
• Table 30. Summary of Objective #6 Performance Measures.
• Table 31. Summary of Objective #7 Performance Measures.
• Table 32. Summary of Objective #8 Performance Measures.