Obviously there is greater competition on air routes, whereas you are mostly tied into using the national operator for most train journeys. (trainsonthebrain.com)
Some areas are included because of new museums, more air routes or a festival. (thewomenstravelgroup.com)
We will use the referenced case as an example, as I understand it the official corruptly received a benefit in the form of the creation of a new air route in order to permit United Airlines to build a hanger at Newark Airport. (law.stackexchange.com)