In its simplest definition, the trackside signals are instead placed inside the driver's cab of the train. This means that the train is not limited by the diadvantages of block signalling, where all trains must adhere to a one-size-fits-all and to a worst-case-scenario method of signalling around the geogrpahical features.

For cab signalling, each train receives independant information from the trackside signalling system and transforms the information into actions for the driver to obey. Cab signalling makes It possible to have non-geographical or moving blocks and for trains to respond to their unique characteristics of length, speed and mass.

An automated washing facility to clean the rail carriages (cars)

Any wire or rope strung between two points forms a natural curve called a catenary curve. Overhead wiring (OHW) for traction purposes consists of a cable strung between two points forming a catenary curve. The catenary has "droppers" which support the actual conductor. The term catenary is often used to describe all OHW, not just the curved wire.

A caution aspect is usually the yellow aspect shown on signals. In some signals, especially shunting and other special purpose signals, another colour may be the caution aspect.

See also:

Proceed aspect and danger aspect

Closed Circuit Television. Used extensively in rail environments for a variety of usages such as security, traffic monitoring and operations.

A system where signallers are located in a central control room and from there they may control large sections of (or the entire) rail network.

Modern control rooms typically use computer interfaces (but may still use control panels) to interact with the interlockings under their control. 

The area between the track (or edge of ballast) and the boundary fence. Specifically, from boundary to the nearest rail on a running line or to the ballast in some cases.

The cess area is usually a safe refuge. Access to the cess is still subject to strict rules.

CILT's mission is to provide leadership in research, policy and professional development and supporting continuous improvement in the Transport and Logistics Industry.

The association covers all those who work transporting passengers, moving freight and managing Australian domestic and international supply chains from the most junior school leaver to the most senior CEOs.

CILT was established in the UK in 1919, and has been operating in Australia since 1935. CILTA is part of the CILT International network with of over 33,000 members and more than 200 key corporations working in 100+ countries.

Some public courses in Web Rail have been recognised by CILTA.

Chartered Status certifies that engineers practice in a competent, independent and ethical manner. It is adminstered by Engineers Australia.

There are three levels of Chartered Status:

Professional Engineer – Chartered Professional Engineer (CPEng)
Engineering Technologist – Chartered Engineering Technologist (CEngT)
Engineering Associates – Chartered Engineering Associate (CEngA).
 
Engineers with Chartered Status not only demonstrate high standards to achieve the qualification, they must also meet ongoing Continuing Professional Development (CPD) and practice requirements and undergo audits of CPD activities.

The CER is a room that houses the communication equipment for the local railway. It usually has at least an interface between the interlocking and the train operations (train control) centre.