text: One final advantage to limiting the use of cars is that it saves money.  Citizens save money by not having to buy cars or the gas they require.  Also, citizens don't have to pay taxes for roads, parking lots, or traffic lights.  Another way limiting driving saves money is on the materials and equipment needed to pave roads and parking lots.  Since many people who live in dense cities take the subway or bus to work anyway because of the recent recession, limiting car use would be an easy way to clean up some pollution in that city.