Construction Vehicles.

The Bulldozer.

All modern construction across the globe today is supported by a series of vehicles to help tear away the earth, to dig, to tunnel underground and erected up to support building up. We cannot live or do anything without machines. 

The bulldozer has been around now for some time, its origins come from the caterpillar tractor of U.S. 1920's. Tracked vehicles work well on rough and unstable ground, but with the introduction of the JCB double powered 4 wheel machines the bulldozer is not now limited just to heavy construction.

A tractor type based on the Unimog multi-purpose off road vehicle has allowed  a more basic machine to expanded into road building scene. but despite this the old bulldozer cannot be done without. Caterpillar in one of the biggest producers in the world. These Cats' are widely used by the military also.