ABSTRACT
This chapter describes about the physical deterioration. Physical deterioration, wear and tear, and large-scale accumulations of graffiti and trash routinely occur in many older, urban neighborhoods. If people or public agencies do not do anything for a significant period about such deterioration or accumulations, residents and businesses owners will feel increasingly vulnerable. Feeling more concerned for their personal safety, residents and business owners will participate less in the maintenance of order in public places. Residents, sensing that some local youths are becoming increasingly troublesome, withdraw further from the public spaces in the neighborhood and become more concerned about protecting their own safety and personal property. Crime prevention through environmental design and the broken window theory suggests that one "broken window" or nuisance, if allowed to exist, will lead to others and ultimately to the decline of an entire neighborhood.
