Up local. Refers to the train that is on, or to the track itself, that carries the local traffic (around the station) in the up direction. 

Up main. Refers to the train that is on, or to the track itself, that carries the main through traffic in the up direction. 

See also down main.

An electrical device that provides instantaneous power to a circuit when the main power source fails. 

A training package has many units of competency.

A unit of competency has multiple elements of competency.

Each element of competency describes what a person should be able to do to achieve the unit of competency. These are broken further into performance criteria.

In most countries — but not all — a train travelling in an "up" direction is travelling towards the capital city. Where a train travels between two regional cities, one may be designated the up direction.

The train is often referred to as an up train (i.e. the 13:20 up train).

The signals that face this train are often called up signals.

Also see down direction.