a footbridge still wouldn't solve the accessability problem for people with mobility problems, buggies etc - unless it had lifts each side which would be really expensive (and unreliable). I think the answer lies with the subway, which I understand is going to be improved by the people developing the new flats. I am not sure what they are gong to do with it - it would be difficult (impossible?) to make it step free. I believe there will be lifts to get over the tracks in FH station when it gets done up, but you will need an Oyster card to use them!!