TarifaZero.org: "The creation of a system of universal free public transport in capitalism sounds like an unattainable fantasy. Such a system, at first glance, it would be economically inefficient, in that state would burden too much.
But from an economic standpoint, creating a system of free public transport is advantageous to the State. A society that relies on private automobiles as the main means of transport has high social and ecological costs. We need to take these costs into account in calculating the efficiency of any transport system."