What type of equipment is primarily used to cast heavy concentrations of snow away from runways?

The primary equipment used to cast heavy concentrations of snow away from runways is rotary snow blowers. These machines are specifically designed to handle large volumes of snow effectively. They feature a rotating auger that gathers the snow and moves it toward a fan, which then throws the snow a considerable distance away from the area being cleared. This capability is crucial for maintaining safe runway conditions during winter weather when snow accumulation can obstruct landing and takeoff paths.

While displacement plows are also effective in moving snow, they primarily push snow to the side rather than ejecting it, which can lead to snow piling up if not accounted for properly. Sweepers are generally used for clearing lighter snow and debris after more substantial snow removal efforts have been completed, and melters treat accumulated snow rather than remove it from the immediate area. In situations involving heavy snowfalls, rotary snow blowers are favored for their efficiency and effectiveness in keeping runways clear.