ROBERT SIY
Fifty years ago, the ecologist Garrett Hardin wrote “The Tragedy of the Commons” to describe how individual self-interested actions lead to a community’s collective peril. Every day, rational individual choices undermine the common good. Overfishing of a bay. Deforestation. Waste disposal. Climate change. A similar tragedy is the worsening traffic, linked to ever-increasing numbers of private vehicles on limited road space.