When I first started plowing snow over 60 years ago, I was taught to push the snow from the high side to the low side, and then push the snow off the low side on the return pass. That way you always had room for the next big snowfall. We had a fixed V plow for opening the road if it was extremely heavy snow, but we would always push to the low side first, and then when we came back, the first plow would put the snow from the high side towards the middle of the road, and the second plow would push it away to the low side. If a third plow was available, that one would push the snow off of the shoulder into the lowest part of the road. We never had a time when we couldn't get rid of the snow before the next snowfall happened. We also opened areas where the water could run off so it eliminated puddling and the ice on the road when it froze overnight. I no longer do snow removal commercially and the equipment today is far better than what we had back then.
I once saw a giant snowblower mounted on the front of a Chevy pickup that was hydraulically driven by a monster diesel engine and hydraulic system on the back of the truck. Never saw it operational, but I am certain that it was for areas where there were no homes on the road.