I use Google Maps extensively on my Android Phone and am very satisfied with it. However, there is a small limitation. When I want to navigate from one location to another, I only get car route, bus route and walk route. Unfortunately, I do not get an option for rail route. Though it is not a limitation of Google Maps, as simply such feature does not exist currently with them, I am interested to know, is there any solution available for train routes also to be shown in a mapping app.