A game-theoretical approach to a regulation problem for illegal parking

The paper wants to obtain an effective regulation policy for illegal parking. How much should the frequency of crackdown and the fine be to deter driver from parking illegally? In the cast of a general crackdown, the problem is a simple maximizing problem. But in the case of partial crackdown the problem becomes a two-person zero-sum game between a driver and the police. The case of progressive fines is formulated by a sequential game. Furthermore the paper considers the case that the police makes raids in many places simultaneously. In all cases it obtains the optimal regulation policies.