This is a simple idea, that would make a difference to traffic caused by parking. Think about that time you were driving and there was a traffic jam because of a line of cars entering a parking garage. It happens everyday during rush hour, and adds time to everyones commute. E-Z pass has made getting on and off of toll roads quick and easy, and it can do the same for parking in the city. We should add the E-Z pass readers outside every city garage and lot.