What is "service capacity used"?

When you sign up for seasonal snow removal, we reserve crew capacity, equipment, and scheduling resources for your property throughout the winter. "Service capacity used" refers to the portion of the season during which we maintained this reserved capacity for you, regardless of how many times it actually snowed. “Service capacity used” depends on snow fall patterns in your specific region, the following table is our standard services capacity usage table but it may differ for your region.