In a recently completed Clear Roads project, researchers developed an hour-long video that provides animated sequences of efficient plowing paths for 10 different interchange and intersection configurations. A training manual and reference cards complement the video. See the project page.
Clear Roads has published its fourth Annual Survey of State Winter Maintenance Data, which compiles data on winter resources, materials and costs from 35 states for the 2017-2018 winter season. The spreadsheet-based tool includes a United States map that displays many of these metrics. The tool includes four years of data, and displays averages and changes across winter seasons. See the project page.