求解！！！

MarKuBeX

For Departure, You need to be familiar with the departure routes. The link is just perfect for that ^.^ May be better to learn the Japanese katakana, カタカナ, that way you will be able to identify them quicker. From what I see in Osaka, some of the transitions are name places like ナゴヤ名古屋、コマツ小松 so that might help to remember which to choose.
8 h, b. `$ o  n, |8 R  x2 |For Arrival, so far, only ones that in normal gives you the choice of ABC gives you the ability to change course. I would think that it is NOT unlimited, once pass certain place, you will either go for Contact tower, or you will be able to tell it to go on waiting pattern. So Tokyo Southern approach and Osaka Eastern approach gives these options. (by the way, this is also found in departure too.)
' n/ i% m+ i" m0 Q9 j3 L# Y
Anyway in general, it gives you more control, but more chance of mistake.