Could be so much better

Theres a much better implementation of this idea with the NYC Exit Strategy app.

If Im on a platform and waiting for a train, it would be faster for me to pick the line and the station and determine which carriage I should be in based on the tube map. Having to scroll through a table of lines and stations is incredibly slow and inefficient.

UKtoUStoUK about Tube Exits, v1.8.2