Reprinted from Clear Roads News November 27, 2024

Clear Roads project 18-03, Evaluation of SSI and WSI Variables, produced a step-by-step guide and flowchart tool to help agencies identify or develop severity index methods to fit their needs and available data sources.

As estimating the impact of weather on roadway maintenance resources is becoming an increasingly important issue for agencies across the country, a recently completed Clear Roads project, 21-04, Training Module Development for Evaluation of Storm Severity Index and Winter Severity Index Variables, produced additional training modules geared toward three key audiences: division directors, snow and ice managers, and supervisors.

Incorporating audiovisual materials, discussion topics, and interactive exercises, the training modules will help practitioners design and develop indexes to suit their agency’s particular needs.

Download the final report and two-page brief: CR 21-04 – Training Module Development for Evaluation of Storm Severity Index and Winter Severity Index Variables, July 2024.

Resources

• Training modules (CR 21-04)
• Final Report (CR 21-04)
• Spreadsheet Tool (CR 18-03)
• Final Report (CR 18-03)

Clear Roads has published the results of their ninth Annual Survey of State Winter Maintenance Data, which compiles winter resources, material and cost data from 41 states for the 2022-2023 winter season. The spreadsheet includes all submitted data, as well as calculated statistics, winter severity index data, and a United States map that displays many of these metrics. The spreadsheet also includes data from the previous seven surveys (winters 2014-2015 through 2021-2022) and displays averages and changes across winter periods.