市内の交通 いろいろと研究されていると思いますが、まずは下記を一読あれ This ticket is valid from Monday to Sunday for one day of your choice from 9 a.m. until 3 a.m. of the following day (on bank holidays for the whole day)on Saturday and Sunday and bank holidays from from 0 a.m. until 3 a.m. of the following day. It can be used on all local trains (Interregio-Express, Regional-Express, Regionalbahn, S-Bahn) and the entire transport system in Bavaria as well as the Münchner Verkehrsbund (MVV) and Verkehrsverbund Nürnberg (VGN), Augsburger Verkehrs- und Tarifverbundes (AVV) and many more. >the entire transport system in Bavaria とありますね。つまりバイエルンで有効ということです。Ulm、SalzburgはBayernの外ですからそこの路線バスや市電は使えないわけです。ニュルン「ベ」ルクはBayern州です。