This had one flaw that made it unusable. The map would go straight black if enlarged. I couldn’t get around that at all. Deleted.

In the app description, it says there is a feature to find the exits so I can know which carriage to board, but I can't find it in the app anywhere. Overall it's an okay app, lacks UI polish and needs to think about the different ways users want to get data (like a clickable map)