Snow Removal at Extreme Temperatures
Started: March, 2012 Ended: January, 2013 Project ID #4W3931 Status: Completed
The goal of this project was to review best management practices for maintaining clear roads at extremely low temperatures and develop cost effective strategies for getting the roadway to a bare/dry condition in extreme temperatures and keeping it at that condition.
Using salt to keep roads clear works very well, down to approximately -12.2ºC (10ºF). It will also work at lower temperatures but it requires higher volumes and becomes less cost effective. When the temperature gets extremely low state agencies tend to: plow the roads, rely on abrasives, and/or use high volumes of salt. In urban areas with high traffic volumes abrasives are ineffective and other strategies result in the over usage of salt, equipment and manpower. Additional strategies need to be identified for maintaining roads in extreme temperatures. Recommendations need to take into account that some strategies may be more efficient and effective for low-volume versus high-volume roads. This research is expected to advance the knowledge base for winter maintenance best practices under extremely cold temperatures, and thus help maintenance agencies address the challenge in meeting multiple priorities in safety, mobility, environmental stewardship, and infrastructure preservation in a fiscally responsible manner. By identifying and promoting best practices, it is expected to help improve the LOS on highways, reduce the winter maintenance costs, and reduce the corrosion and environmental impacts due to snow and ice control operations.
Sponsors & Partners
- Minnesota Department of Transportation (Mn/DOT) Sponsor
Part of: Winter Maintenance and Effects« Back to Focus Areas