Middle platform at White City

It's entirely possible, as is the case at any station with platforms on both sides.

What would happen if the T/op opened the Doors on the wrong side?

What would happen if a jockey stepped off of his horse during the Grand National?

I took the previous question to mean the 'wrong' side as opposed to just the 'other' side at a twin platform station.

I understand that. I was not sure what was being asked.

Doors opened 'wrong side' at a single platform:
we have procedures for this - most importantly, the first thing is to close the doors. Then the line controller is informed and a search is made, turning off traction current if neccesary. Following the intial incident, the train is taken out of service and once reaching the nearest siding or terminating point, is left opened up with the keys untouched so that the door system can be checked to make sure it's working correctly. After all that, the train operator will be interviewed and informed of any further steps to be taken - which may involve a disciplinary or re-training.

Doors opened up 'wrong side' at a double sided platform:
Depends on location - for example, Gloucester Road eastbound. Whilst it wouldn't be the end of the world to open here (disused platform), it *could* be treated in the same manner as above. Barking terminator opening up both sides on the other hand (see below), would be no problem officially - just difficult to 'tip out'.


All locations will be different, so, I can only speak for Barking eastbound - all trains open up on both sides with the exception of terminators. The reason for opening both sides is that on the left hand side are Silverlink services to Gospel Oak and the lift to street level. On the right are the 'mainline' c2c services to Upminster, Basildon, Southend, etc.
When terminating, we only open the right side for two reasons. Firstly, it's far easier to 'tip out' & 'close up' a train when the doors on each car are only open on one side. Secondly, most passengers use the right hand platform - so popularity wins

A wrong side opening at Gloucester Road Inner Rail (Opps, I mean Eastbound! ) would be treated as a normal wrong side opening due to the fact that part of the offending train would be outside the disused platform limits.

If a train arrived in the middle road - either going east or west, there wouldn't be no reason at all to open both sides. This can be more confusing for passengers, wondering which way the train is going. Even if reversing at White City, there is no point once again. Admittedly, some drivers do but I like to ensure everyone gets off as I walk down the train. Once in other cab - check with matrix to see when its your time to leave, then open doors - rather than seeing passengers jumping from one train to the next. Makes life easier for driver and passengers.

That is correct - I have done that many times, excepting if I want to pop upstairs. Normally station staff close the doors for you. Closing the doors, does ensure all passengers are off the train.

Reason for closing the doors: Train could be instructed to go to depot or siding. This would save the driver walking the length of the train again.

Better to ensure the train is empty, before opening doors on otherside, because of unwanted passengers and for security reasons.

If driver leaves doors open on westbound. Lost passengers remain on the train. When doors close from driver's cab - this can result panic among the passengers (handle pulled down) if driver doesn't open doors on otherside straight away.