Engineering:Detrainment device

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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

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

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

  • Historically the most common arrangement

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

  • London Underground S Stock[1][2]

Steps, folding, hinging or sliding out from the doorway

  • London Underground 1973 Stock (refurbished)[3][4][5]
  • London Underground 1996 Stock[6]
  • British Rail Class 378[7]

Ramp, sliding out from below the doorway

  • London Underground 1992 Stock
  • Manila Line 2 Stock

Ramp, folding out from the doorway

  • MTR Metro Cammell EMU
  • MTR Metro Cammell EMU (Disneyland Resort line) stock [8]
  • Kawasaki Heavy Industries C151, Siemens C651, Kawasaki Heavy Industries & Nippon Sharyo C751B, Kawasaki Heavy Industries & CSR Sifang C151A
  • Delhi Metro RS2 and RS3 [9]
  • Alstom Metropolis C751A – North East line
  • PNR 203 Series EMU, Khia 52 Trains, JR 12/14 Series (Ladder Only)
  • Hyundai-Rotem MTR K-Stock EMU[10][11]
  • Kaohsiung Mass Rapid Transit[12]
  • MTR Corporation -MTR Corporation C-Train EMU

Tensioned Fabric ramp, deploying from the doorway

  • MTR Corporation Airport Express A-Stock EMU
  • Siemens Modular Metro and Bombardier Changchun Coaches – Bangkok BTS Skytrain
  • KTM Train Coaches (even Tiger Trains)
  • Bombardier MOVIA C951 - Downtown line[13]
  • Alstom Metropolis C830 and C830C – Circle line
  • Alstom Metropolis C751C
  • Alstom Metropolis Barcelona Metro line 9[14]

Performance

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

  • Evacuation slide

References

  1. ↑ Bloomfield, Paul; Bolton, Geoff (August 2010). "The Introduction of S Stock". http://lurs.org.uk/articles10_htm_files/sstock.pdf. 
  2. ↑ "New Detrainment System for Underground Metro Vehicles". http://www.dca-design.com/new-detrainment-system-for-underground-metro-vehicles.html. 
  3. ↑ "1973 tube stock". November 8, 2010. Emergency detrainment system. http://www.squarewheels.org.uk/rly/stock/1973tubeStock/#detrain. 
  4. ↑ "(untitled)". Archived from the original on January 20, 2011. https://web.archive.org/web/20110120162733/http://www.percylane.com/cms/index.php?option=com_content&task=view&id=42&Itemid=98. 
  5. ↑ "London Underground 1973 Tube Stock". February 28, 2003. http://www.trainweb.org/tubeprune/73%20tube%20stock.htm. 
  6. ↑ "1996 tube stock". July 17, 2011. http://www.squarewheels.org.uk/rly/stock/1996tubeStock/. 
  7. ↑ "(untitled)". Archived from the original on March 17, 2012. https://web.archive.org/web/20120317023312/http://www.londonhealthandsafetygroup.org/downloads/091019-Safety-onELL-byAndrew-Petrie.pdf. 
  8. ↑ Barat Group (January 11, 2011). Video Notausstiegstür MTRC. YouTube.
  9. ↑ Barat Group (April 7, 2011). DelhiRS3. YouTube.
  10. ↑ 10.0 10.1 "(untitled)". http://www.rotem.co.kr/Eng/Common/data/cy_pro_rilmtor03.pdf. "Hyundai Rotem". https://www.facebook.com/pages/Zaynas-Bridal-Salon/872295576132959. 
  11. ↑ "Emergency Evacuation Door". http://www.barat.com/EN/prod_doors-emergency.html. 
  12. ↑ "(untitled)". Archived from the original on August 9, 2011. https://web.archive.org/web/20110809224141/http://www.marshall-slingsby.com/portfolio.html. 
  13. ↑ Barat Group (April 5, 2011). Singapore DTL. YouTube.
  14. ↑ "(untitled)". Archived from the original on December 7, 2010. https://web.archive.org/web/20101207063527/http://www.barat.com/en/ind_detrainment_door.html. 

External links



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