Automatic Warning System (AWS) is a railway safety system invented and predominantly used in the United Kingdom. It provides a train driver with an audible indication of whether the next signal they are approaching is clear or at caution.[1]
Depending on the upcoming signal state, the AWS will either produce a 'horn' sound (as a warning indication), or a 'bell' sound (as a clear indication). If the train driver fails to acknowledge a warning indication, an emergency brake application is initiated by the AWS. However if the driver correctly acknowledges the warning indication by pressing an acknowledgement button, then a visual 'sunflower' is displayed to the driver, as a reminder of the warning.
^"AWS & TPWS Handbook: Section 1.1.3 "The purpose of AWS"". RSSB. Archived from the original (PDF) on 5 December 2016. Retrieved 7 February 2017.
and 25 Related for: Automatic Warning System information
AutomaticWarningSystem (AWS) is a railway safety system invented and predominantly used in the United Kingdom. It provides a train driver with an audible...
Great Western Railway, although it would now be referred to as an automaticwarningsystem (AWS) because the driver retained full command of braking. The...
The Continuous AutomaticWarningSystem (CAWS) is a form of cab signalling and train protection system used in Ireland to help train drivers observe and...
Collision Device AutomaticWarningSystem Automatische treinbeïnvloeding (ATB) British Rail's ATP system Continuous AutomaticWarningSystem (CAWS) EBICAB...
Warning System (replaced by Alberta Emergency Alert) Alert Ready (Canada) AutomaticWarningSystem Child abduction alert system Dam safety system Earthquake...
their capacity. Older manual block systems required human operators. The automatic operation comes from the system's ability to detect whether blocks are...
Automatic track warningsystem (ATWS, German: Rottenwarnanlage) is a technical device used during in track construction for occupational safety. It warns...
as the on the Northern City Line where the Automaticwarningsystem and Train Protection & WarningSystem are not fitted. On the UK mainline, AWS consists...
transponder placed between the rails of a railway as part of an automatic train protection (ATP) system. The French word balise is used to distinguish these beacons...
implemented a similar system in 1906 dubbed Automatic Train Control that served as the template for the magnetic based AutomaticWarningSystem, which ultimately...
company had failed to inform Railtrack and the signaller that the automaticwarningsystem (AWS), which warns drivers of adverse signals, had been turned...
system was later replaced by the magnetic induction "automaticwarningsystem". In inductive system, data is transmitted magnetically between the track...
systems that used the presence of a magnetic field or electric current to designate a hazardous condition. The British Rail AutomaticWarningSystem (AWS)...
A ground proximity warningsystem (GPWS) is a system designed to alert pilots if their aircraft is in immediate danger of flying into the ground or an...
lack of an ATC system on most of Britain's railways was at last seen as an urgent issue. From 1956 the BR-designed AutomaticWarningSystem (AWS) was installed...
Railway introduced the Automatic Train Control (ATC) system in 1906. This system is the forerunner of today's AutomaticWarningSystem (AWS) and consists...
regulation 131 requires a system which can automatically detect a potential forward collision and activate the vehicle braking system to decelerate a vehicle...
An airborne early warning and control (AEW&C) system is an airborne radar early warningsystem designed to detect aircraft, ships, vehicles, missiles and...
warning signs, or "active" protection, using automaticwarning devices such as flashing lights, warning sounds, and barriers or gates. In the 19th century...
The automatic identification system (AIS) is an automatic tracking system that uses transceivers on ships and is used by vessel traffic services (VTS)...
collision avoidance system (CAS), also known as a pre-crash system, forward collision warningsystem (FCW), or collision mitigation system, is an advanced...
impairments) to be aware of their presence. Warning sounds may be driver triggered (as in a horn but less urgent) or automatic at low speeds; in type, they vary...
(resembling the letter X). Crossbucks are sometimes supplemented by electrical warnings of flashing lights, a bell, or a boom barrier that descends to block the...
Level crossing signals are the electronic warning devices for road vehicles at railroad level crossings. Level crossings can be operated in various ways...
operations. Scanet was also connected to the automatic train control system. However, several lines lack the system, including the Arendal Line, the Flåm Line...