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KEY TERMS AND DEFINITIONS
Artificial Neural Networks: Artificial Neural Networks are a group of models inspired by biological neural networks and are used to estimate or approximate functions that can depend on a large number of inputs and are generally unknown.
Gauge: Track gauge is the spacing of the rails on a railway track and is measured between the inner faces of the load-bearing rails.
Prediction: Prediction is a statement about an uncertain event and it is often based on experience or knowledge.
Rail Degradation: Degradation is the wearing down of rail.
Track: The track on a railway or railroad is the structure consisting of the rails, fasteners, railroad sleepers and ballast (or slab track), as well as the underlying subgrade.
Tram: A tram is a rail vehicle which runs on tracks along public urban streets, and also sometimes on a segregated right of way.
Twist: Track twist is used to describe cant gradient which may be expressed in percentage of cant change per unit of length.