Bletchleyite
Veteran Member
Might work on busy outer suburban or regional commuter trains like the WCML to Northampton or the Brighton line where passengers from the original will want a seat but as you get close to the terminus people are happier to stand, but for every transverse seat you fit you could have had 2 airline seats.
That's not quite true. Remember that you've got a seat base (which is roughly square) and legroom (which is roughly the same width as the base). So it's close to 2 either way.
You lose a bit where you change to regular seating due to the slope of the seat back, but that can be luggage space.
(Note: The basis of this was that if people prefer tip-ups when travelling alone, perhaps more regional trains should have longitudinal seating in places?)