detrainment

Modern detrainment step systems can detrain one person every 2 seconds.

A detrainment device may allow evacuation to track level, or to a coupled railcar.

A Detrainment device is equipment on a rail vehicle that provides an evacuation route for the passengers.

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

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 be fitted with handrails.

The detrainment of excess momentum from clouds.

They activated the detrainment ramps at both ends of the train, and evacuated to safety via an escape shaft.

It would take another two days of switchings and sidings and equally intricate detrainment before it would be in position to fight.

A detrainment device may consist of a manually placed, hinged, foldable or telescopic ladder or ramp.

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.

YouTube video: How to deploy the emergency detrainment door on the North East Line (Alstom Metropolis C751A)

Another method, that was first proposed by Kerry Emanuel, is called cloud-base detrainment instability (CDI), which acts very much like convective cloud-top entrainment.

These flows are non-conservative in that they may exchange particles at the lower boundary by deposition or suspension, and may exchange fluid with the ambient by entrainment or detrainment.

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, if the ramp, its handrails and the cab and saloon throughways are correctly specified.