Numerous cities have vast sprawl and include satellite cities, i.e. zones of high development and population density within the larger metropolitan area. Sydney’s examples of Parramatta, Chatswood, Hurstville etc. would be familiar to Australians.
Transport between such areas is problematic, and when trains, buses, ferries, trams, cars and bikes all reach their capacity, what option remains for commuters to escape the gridlock? The sky.
An airship could cruise high above the stressful traffic jams and dock atop tall buildings; either retrofitted or purpose-built. Profitability could be maximised with an underside billboard and joy rides at quiet times.