A Tracked Shovel' or Tracked Loader is an construction machine consisting of a heavy chassis and tracked undercarriage with Bucket mounted on loader arms for digging and loading material. The history of track loaders can be defined by three evolutions of their design. Each of these evolutions made the track loader a more viable and versatile tool in the excavation industry. These machines are capable in nearly every task, but master of none. A dozer, excavator, or wheel loader will out perform a track loader under a set of conditions, but the ability of a track loader perform almost every task on a job site is why it remained a part of many company's fleets for years, but now due to the transport cost has lost out in favour of Backhoe loaders on rubber tyres in the UK.