A simple answer to a simple puzzle – you can say clockwise with 外回り and counterclockwise with 内回り when you’re referring to a loop train line. This works because like cars, trains always go on the left side of the “road” in Japan. Yamanote Line stations often have these signs:

And I’ve been told that the 大阪環状線 also uses this terminology.

A couple of right answers this week, and the winner by coin flip is Karla. Congrats. Claim your beer when you will!