Questione giuridica chiave
Whether the administrative law appeal against the cantonal judgment was admissible and the city had standing.
Decisione estratta
The appeal was admissible, and the city had standing because it was affected in its own protectable public interests.
Motivazione estratta
Functional traffic regulations are challengeable by administrative law appeal; the city, as the authority issuing the measure, may invoke its own protected public interests.