Problem with Apple Map in Japan

In Japan Apple Maps doesn't works good. If I ask for a route from A to B the only directrions from the app are using a car or by walk. But the 80% of japanese people moves by train. Any kynd of info asked about the pubblic transortations don't work at all. Even switching the language of the app in japenese. NOTHING!
This is a big big problem. I want my Google map back or a quick fix of this new app.