In this way, the driver must refer to the installed devices after each time his car park, in order to pay the coin or electronic fee if the device is active and safe. The disadvantages of this method are the need for a lot of training, wandering and wasting of drivers’ time, the necessity of having a citizenship smart card, the considerable cost of installing and maintaining park meters, relying more on the police force, reducing job creation, not being accountable to people to pay parking fees, injustice in park fees, and so on.