Detrainment device
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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
[edit | edit source]Examples of the main types of detrainment device currently in service include:
Steps, stored loose inside the driver's cab or the passenger saloon
[edit | edit source]- Historically the most common arrangement
Hinged steps, stored inside the driver's cab or the passenger saloon
[edit | edit source]Steps, folding, hinging or sliding out from the doorway
[edit | edit source]- London Underground 1973 Stock (refurbished)[3][4]
- London Underground 1996 Stock[5]
- British Rail Class 378[6]
Ramp, sliding out from below the doorway
[edit | edit source]Ramp, folding out from the doorway
[edit | edit source]- MTR Metro Cammell EMU
- MTR Metro Cammell EMU (Disneyland Resort line) stock [7]
- Kawasaki Heavy Industries C151, Siemens C651, Kawasaki Heavy Industries & Nippon Sharyo C751B, Kawasaki Heavy Industries & CSR Sifang C151A
- Delhi Metro RS2 and RS3 [8]
- 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[9][10]
- Kaohsiung Mass Rapid Transit[11]
- MTR Corporation -MTR Corporation C-Train EMU
Tensioned Fabric ramp, deploying from the doorway
[edit | edit source]- 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[12]
- Alstom Metropolis C830 and C830C – Circle line
- Alstom Metropolis C751C
- Alstom Metropolis Barcelona Metro line 9[13]
Performance
[edit | edit source]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[9] 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
[edit | edit source]References
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