{ Installment 2 of Ivan Illich’s Energy and Equity series }

The industrialization of traffic

The discussion of how energy is used to move people requires a formal distinction between transport and transit as the two components of traffic. By traffic I mean any movement of people from one place to another when they are outside their homes. By transit I mean those movements that put human metabolic energy to use, and by transport, that mode of movement which relies on other sources of energy. These energy sources will henceforth be mostly motors, since animals compete fiercely with men for their food in an overpopulated world, unless they are thistle eaters like donkeys and camels.