ALthough to this day - I never travel in the front coach of any train.
I'm afraid your logic is seriously flawed here ! There is nothing to show that the leading coach of a train is any more dangerous than the rear. In fact from an engineering standpoint I would have thought opposite was more likely - unless the train went head on into a
really immovable object.
At Southall the most damage was to the 2nd & 3rd coaches.
At Ufton Nervet, the 3rd & 5th.
At Potters Bar the rear coach.
By coincidence I am at the moment reading a book about "survivability" (The Survivors Club by Ben Sherwod), I haven't come across any thing about trains but there is a section about air crashes, which is very interesting.
It is always said that the rear of an aircraft is safer than the front. This was supported by a "Popular Mechanics" article which said that the rear passengers had a 69% chance of surviving, those in the front only 49%.
This how now been contradicted by the University of Greenwich, who say 53% in the rear, 65 % in the front.
Popular Mechanics or a University study ? take your choice !
The safest place on an Aeroplane ? - difficult to say - it all depends on the mechanics of the accident, if you knew that beforehand you wouldn't board that flight !
There are a few precautions you can take however.
Fly in a bigger aeroplane, more structure to absorb impact forces.
Sit within 5 rows of an exit - preferably a door, NOT an over wing exit.
Sit in an aisle seat.
Don't take your shoes off at take-off and landing.
Forget your carry-on baggage.
Wear cotton based clothing.
.........and amazingly people who worry about crashing are actually less likely to survive because they feel that they WILL die, so there is no point in trying to escape.
The US National Transportation Safety Board analysed all the aircraft accidents 1983 -2000 - 95.7% of the passengers in these survived.
Even in the 21 "serious" accidents 76.6% survived.
Flying is VERY safe - trains are MUCH safer still !