Clear Roads researchers gathered information about plowing 10 different types of intersections and interchanges and identified best practices. They then developed a complete set of training materials, including a video (with clearing animations), a manual, and reference cards.
Survey respondents from 21 states evaluated and commented on proposed plow paths, techniques, and equipment for clearing snow from 10 road layouts:
-
- 1. Roundabout intersection
-
- 2. Four-leg intersection
-
- 3. Displaced left-turn intersection
-
- 4. Median U-turn intersection
-
- 5. Double roundabout interchange
-
- 6. Diamond interchange
-
- 7. Cloverleaf interchange with C/D lanes
-
- 8. Single-point interchange
-
- 9. Diverging diamond interchange
-
- 10. Directional T interchange.
The primary training tool researchers created is a 66-minute video with a chapter menu directing to each geometry type. The video sequences include detailed animated sequences for each configuration, showing plow trucks following specific plow paths to clear the roads.
Learn more:
- Video: Best Practices and Techniques for Clearing Intersection Layouts (Clear Roads and Southern Illinois University Edwardsville, Dec. 4, 2018, 1:06:20)
- Practice manual: Manual of Best Practices and Techniques for Clearing Intersection Layouts (Clear Roads, Oct. 2018)
- Reference cards: Intersection and Interchange Clearing and Instructions (Clear Roads, Oct. 2018)
- Research project page, with short videos for each of the 10 configurations
- Research brief: Plowing Intersections and Interchanges: Training Materials for 10 Configurations (Clear Roads, Dec. 2018)
