An air-filled or pneumatic tire consists of an inner core which is sealed airtight and filled with pressurized air. Usually, a reinforced steel belted tread or other materials, seals this inner core and provides the contact part with the road.
Since the air pressure within the tire is more than atmospheric air pressure, the tire remains inflated even with the weight of the vehicle resting on it. The pressure of the air within the tire provides resistance against forces which try to deform the tire. This gives the tire a slight degree of a cushioning effect when the tire hits bumps in the road. If you have experienced taking a ride in an old-fashioned carriage which had wooden wheels, you understand precisely how big of a difference a set of pneumatic tires makes.
Pneumatic tires also come with disadvantages. High-performance situations or highly dangerous applications for instance, these tires could suffer a puncture and this will lead to a total failure. The consequence of a blowout at high speeds can lead to a dangerous car crash. Military planners should consider tires getting blown out by shooting of guns or explosion shrapnel. The worst nightmare of a vehicle crew is becoming trapped in a fire zone because of all of their tires becoming flat. Airless tires evidently don't suffer from these issues and hence, in some applications, might be more suitable.
The pneumatic tire might have problems as well with the variation in tire performance and air pressure. The lower pressure inside a tire may increase the comfort level and the traction. This is because of the fact that tires flatten a little and more tread is placed in contact with the road. The air pressure in the tire works to maintain the "up and down" stiffness as well as maintain the lateral stiffness of the tire. Hence, reduced air pressure enables the tires' sidewalls to flex. Unfortunately, this leads to poor handling. Within an airless tire, the stiffness in those two dimensions is independent.
There are other problems with air pressure. Consumers are notoriously unreliable when it comes to maintaining proper air pressure. Tires that have incorrect air pressure can lead to unsafe situations. It is very vital to note that pneumatic tires are susceptible to temperature changes also, that can be responsible for changing the internal tire pressure. It is really essential to consider the type of settings you will be needing your equipment to function in so that you can regularly check the tires and keep the machine as safe as possible.