In the days when R/R Dewents were used to power Meteors, aircraft were quite handy. A couple of Vampires positioned by tractors could blow of a fair amount of snow. IIRC we cleared a one aircraft wide strip on Oakington's runway in a day from 3 inches. In the V Force days it was imperative for the runway to be clear enough for our nuclear deterent to get airborne. The MRD was invented for that. To many aircraft tugs were being overturned by Victors when the pilot was a bit clumsy on the throttles.
People cause the difficulties.
After a snowfall the duty crew drive around the perimeter tracks and runway and announce that it is covered with snow.
The O/C ATC drives around the perimeter track and the runway and announces that it is covered with snow.
The O/C Operations drives around the perimeter track and runway and announces that it is covered with cnow.
The Station Commander drives around the perimeter tracks and runway and announces that it is covered in snow.
Various other personnel who apparantly have an interest drive around the perimeter tracks and runway and announce that it is covered in snow.
It isn't covered in snow. It has a lot of snow but is now covered by all the ice created by vehicle tyres driving over the snow.