Overview of two computer programs, the RAND Patrol Car Allocation Model (PCAM) and the Hypercube Model. PCAM is used primarily to determine the total number of patrol cars a police department needs and how they should be allocated over days of the week, hours of the day, and geography. The Hypercube Model is used for designed patrol beats. This paper summarizes the early implementation history of these models and later developments in improving and institutionalizing the process of using them. Examples of the applications of the computer models are described.
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