Snow and ice pose significant challenges to road safety, but DOTs can weather the oncoming storm.
DOTs must strike a careful balance between the need to keep roadways safe for the traveling public and the need to be good stewards of the environment by looking for ways to reduce road salt and the effects of its application during winter maintenance.
The most common substance used for deicing roads and highways is sodium chloride (NaCl). It is effective against snow and ice but comes with several environmental and infrastructure challenges. When overapplied to roadways, these challenges are magnified. When underapplied, precipitation can freeze on the road surface and create an unsafe and hazardous condition.
To meet both needs, PILLAR recommends DOTs start with proper spreader calibration and dry practice runs on snow routes as tools for effective transportation asset management. These two techniques will help DOTs ensure safe roadways and optimal use of resources while minimizing environmental impact.
Importance of Spreader Calibration
Every piece of deicing equipment needs to be calibrated at the start of winter, and then that calibration should be rechecked regularly throughout the season to make sure the systems continue to dispense at the correct rates. Here are some things to keep in mind:
- Calibration of spreaders is simply calculating the pounds per mile discharged at various spreader control settings and truck speeds for each piece of equipment for each type of material used.
- Different materials will spread at different rates even when equipment settings are the same, so spreaders and liquid dispensing systems must be calibrated with the material that will be used.
- There are various methods of calibrating a spreader. Plus, gate opening and conveyer speed both need to be adjusted to achieve the optimal rates.
The process sounds complicated, but PILLAR has staff with years of winter maintenance experience that can either complete the calibrations or can work with you and help to teach your current staff.
Importance of Dry Practice Runs
Practice does make perfect, and dry runs help your winter road crews become familiar with the route they will be plowing before snow arrives. This is important preparation because:
- Winter equipment may be inspected before the start of winter, but unexpected maintenance issues can be identified and corrected during dry runs, before the equipment needs to be running at maximum effort.
- Drivers may be maintaining the same route as the previous year, but there could have been changes to the roadways since then, such as new curbing or the settling of bridge approach. Noticing these things before the snow arrives will increase the driver’s ability to work efficiently and safely.
- Equipment fully inspected. At VDOT, we have mechanic teams walk around and fully inspect the snow equipment.
- Plows can cycle through the up and down positions repeatedly to be sure they ready for deployment.
PILLAR’s experts are ready work with you to optimize your routes, practice runs as well as your snow management plans, developing efficient winter response plans that work with the resources you have.
Plow Forward with PILLAR
PILLAR’s team has been involved with winter weather planning and response on many different projects with 40-plus years of combined experience. Get in touch today to discuss how we can help you be ready for the snow and ice to come.