London congestion charge (2003)
London began charging drivers a daily fee to enter the center of the city, with the money earmarked for bus service and transport improvements. Drivers who needed to cross the zone paid; everyone who rode the buses benefited.
Traffic entering the zone fell, and the charge became a standing source of transport funding.
The charge was raised repeatedly, and arguments about who could afford to drive into the center never went away.
The same trade-off Golden Gate Park faces: charging for access to a shared space, with the money promised to a public benefit.
