TPWS
E86256
TPWS (Train Protection & Warning System) is a UK railway safety system that automatically applies a train’s brakes to prevent collisions and overspeeding, particularly at signals and speed restrictions.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
railway safety system
→
train protection system → |
| abbreviationOf |
Train Protection & Warning System
→
|
| activationCondition |
train approaching a red signal too fast
→
train exceeding a monitored speed restriction → train passing a red signal → |
| appliesTo |
railway trains
→
|
| basedOn |
transmission of radio frequency signals from track to train
→
|
| compatibleWith |
conventional UK lineside signalling
→
|
| component |
brake interface
→
on-board control unit → on-board receiver equipment → track-mounted transmitter loops → |
| countryOfUse |
United Kingdom
NERFINISHED
→
|
| deploymentPeriod |
early 2000s
→
|
| developedBy |
British railway industry
→
|
| developedFor |
Railtrack
→
|
| effectOfActivation |
brings train to a stop
→
initiates emergency brake application → |
| fullName |
Train Protection & Warning System
→
|
| hasVariant |
TPWS+ (enhanced configuration)
→
|
| introducedAs |
cost-effective alternative to full Automatic Train Protection
→
|
| introducedInCountry |
United Kingdom
NERFINISHED
→
|
| language |
en
→
|
| limitation |
does not prevent all SPADs
→
does not provide continuous speed supervision over entire route → |
| mandatedBy |
UK railway safety regulations
→
|
| monitors |
train location relative to signals
→
train speed → |
| operatorDomain |
mainline railways in Great Britain
→
|
| providesProtectionType |
overspeed sensor system
→
train stop system → |
| purpose |
to mitigate signals passed at danger
→
to prevent overspeeding → to prevent train collisions → |
| regulatoryDriver |
Railway Safety Regulations 1999 (UK)
→
post-Clapham Junction rail accident safety recommendations → |
| relatedTo |
Automatic Train Protection
→
Automatic Warning System → |
| safetyFunction |
automatic brake application
→
|
| safetyImpact |
reduction in serious SPAD-related accidents in the UK
→
|
| sector |
rail transport safety
→
|
| standardizedBy |
Rail Safety and Standards Board
→
|
| successorTo |
AWS in terms of enhanced protection
→
|
| usedAt |
buffer stops
→
permanent speed restrictions → signals → |
| usedOn |
freight trains in Great Britain
→
passenger trains in Great Britain → |
| worksWith |
AWS
→
|
Referenced by (5)
| Subject (surface form when different) | Predicate |
|---|---|
|
British Rail Class 397
→
Class 220 Voyager → London Overground → Scottish rail network → Virgin CrossCountry → |
safetySystem |