For the Circle/District/Hammersmith&City/Metropolitan shared platforms, TubeWhizzard is approximate due to the varying length of these trains. This is why it sometimes lists these lines separately even though they use the same platform.

TubeWhizzard took some years to assemble during late nights from the work by Desmond Campbell. Most people know a few routes through the Tube boringly well, but how many of us know the lot? Please add your knowledge for everyone at Add station info

To figure out which way the train will arrive while you are trying to find the right place, you can use TubeWhizzard for the platform you are on also, while also reading it for the platform where you intend to alight. This can be difficult if p***ed but then who cares.

It can be used "in reverse" to avoid crowds, and to avoid being in a crammed carriage when the crowds pile in at major stations please add Way In at Add station info