Mostly, but not necessarily, within regional transportation networks.

As a for example: I pay roughly $1200 for one year of travel within the city of Zurich and the adjacent zone including the airport.

This includes any mode of transportation, except taxis.

A Generalabonnement makes more sense, though, commuting from, say, Zurich to Basel, which is not uncommon.

Edited to add: Regional commuter passes also allow for use of intercity trains, provided that they stop within your zone of validity.