Community policing — “a collaboration between the police and the community that identifies and solves community problems” — is not new to the City of Phoenix Police Department. They adopted this philosophy in the early 1990s. In 1995, they sought to expand community policing in Phoenix by applying for, and receiving, a $1.5 million grant from the U.S. Department of Justice to implement the Comprehensive Communities Program (CCP) — a project designed to implement community policing in an urban neighborhood and demonstrate its potential.

This briefing paper summarizes the measures used in the CCP evaluation and briefly examines whether
results answer the question: Is community policing effective? More specifically, it focuses on whether the Comprehensive Communities Program resulted in outcomes desired by neighborhood residents. That is—Did crime go down? Do residents feel more safe? Does a formal partnership between the police and a neighborhood make a difference?

The study reported here was designed to examine the impact of background meteorological conditions on the propagation of noise from urban freeways in the Phoenix area. The aim was to understand and predict how sound waves emanating from highways respond to the vertical profiles of atmospheric temperature gradients and velocity shear, so that sound measurements can be interpreted with regard to the environmental variability.