Do commuters on tube trains use all doors, or do they still act like sheep and try and pile in through just a handful?
I used to change trains at Finsbury Park a lot and the incoming train to Moorgate could be jam packed. Of course, an awful lot of people get off to change too - so while the train then leaves jam packed, it's a lot of newly packed people!
For any 6-car train, I just walked up the platform and boarded at the rear doors and hardly anyone else ever did. Even though the signs said 'six cars' and I could recognise many regulars, all of whom must have seen me standing often completely on my own, further up. When people got off there, I had no issue getting on and getting a seat (or having the option of one, as sometimes I chose to stand).
I just wonder if the same applies to Stratford?
Some stations where it doesn't work so well are Chancery Lane. Nobody gets off here in the evening peak, so trying to get on a train to go west means you could be waiting ages.. as in letting 3, 4 or more trains go through before you can find a gap. Old Street is another, where the trains are so packed that you probably won't find a single door that's much better than any other, although this is not helped by the fact people won't move along inside so there often is actually room.