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Detrainment device

From Wikipedia, the free encyclopedia
Costumed character Captain SMRT demonstrating the use of a refurbished C151's emergency detrainment ramp on Singapore’s Mass Rapid Transit

A detrainment device is equipment on a rail vehicle that provides an evacuation route for the passengers. It usually consists of a set of steps or a ramp, located at a doorway, allowing passengers to leave the vehicle in an emergency, vehicle breakdown or accident.

A detrainment device is moved from a stored location into an operational position, usually above the coupler at the end of a passenger car. A detrainment device may consist of a manually placed, hinged, foldable or telescopic ladder or ramp. A detrainment device may allow evacuation to track level, or to a coupled railcar. A detrainment device may be fitted with handrails.

In other cases, evacuation may be via the vehicle passenger side doors to a trackside walkway in a tunnel, without the use of a detrainment device.

Types

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Examples of the main types of detrainment device currently in service include:

Steps, stored loose inside the driver's cab or the passenger saloon

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  • Historically the most common arrangement

Hinged steps, stored inside the driver's cab or the passenger saloon

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Steps, folding, hinging or sliding out from the doorway

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Ramp, sliding out from below the doorway

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Ramp, folding out from the doorway

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Tensioned Fabric ramp, deploying from the doorway

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Performance

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User trials on prototype equipment in controlled conditions have indicated that a wide detrainment ramp will allow the evacuation of 2500 passengers in 28 minutes[10] if the ramp, its handrails and the cab and saloon throughways are correctly specified. Modern detrainment step systems can detrain one person every two seconds.

See also

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References

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  1. ^ Bloomfield, Paul; Bolton, Geoff (August 2010). "The Introduction of S Stock" (PDF). London Underground Railway Society.
  2. ^ "New Detrainment System for Underground Metro Vehicles". DCA.
  3. ^ "1973 tube stock". SquareWheels. November 8, 2010. Emergency detrainment system.
  4. ^ "(untitled)". Percy Lane Products. Archived from the original on January 20, 2011.
  5. ^ "London Underground 1973 Tube Stock". Tubeprune. February 28, 2003.
  6. ^ "1996 tube stock". SquareWheels. July 17, 2011.
  7. ^ "(untitled)" (PDF). London Health and Safety Group. Archived from the original (PDF) on March 17, 2012.
  8. ^ Barat Group (January 11, 2011). Video Notausstiegstür MTRC. YouTube.
  9. ^ Barat Group (April 7, 2011). DelhiRS3. YouTube.
  10. ^ a b "(untitled)" (PDF). Hyundai Rotem."Hyundai Rotem".
  11. ^ "Emergency Evacuation Door". Barat Group. Archived from the original on 2015-01-19. Retrieved 2015-01-19.
  12. ^ "(untitled)". Archived from the original on August 9, 2011.
  13. ^ Barat Group (April 5, 2011). Singapore DTL. YouTube.
  14. ^ "(untitled)". Barat Group. Archived from the original on December 7, 2010.
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