CPTED Flashcards
What is CPTED?
An approach to reducing crime or security related incidents through the strategic design of the built environment, typically employing organizational, mechanical, and natural methods to control access, enhance natural surveillance and territoriality and support legitimate activity.
What are CPTED zones also known as?
Defensible spaces (Newman, 1972)
What are the three main CPTED Controls/Strategies?
1) Mechanical Measures-Use of hardware and technology systems (locks security screens, fencing, gating, video surveillance, electronic access control).
2) Organizational Measures-A focus on policies and activities that encourage observation, reporting and intervention, where appropriate.
3) Natural or Architectural Measures-Designing the space to ensure the overall environment works more effectively for its intended uses while deterring crimes at the same time.
What are the six CPTED Strategies?
1) Natural Access Control-Employment of physical and symbolic (signs) barriers to discourage or prevent access.
2) Natural Surveillance-Increasing visibility, both interior to exterior and exterior to interior.
3) Natural territorial reinforcement/boundary definition-People will pay more attention to and defend a particular space or territory from trespass if they feel a form of “psychological ownership” in an area
.4) Management and maintenance-maintaining the space to look well-tended and crime-free
5) Legitimate activity support-Engage legitimate occupants, residents, customers, or visitors in the desired or intended uses of the space.
6) Compartmentalization-Multiple concentric layers of security.
What are Natural Barriers? How are they different from physical barriers?
Natural = fields, creeks, rivers, lakes, cliffs, marshes, deserts or other training.
Structural = berms, ditches, artificial ponds, canals, planted trees and shrubs, fences, walls, doors, roofs and glazing materials .
What is routine activity theory?
Criminals acts such as vandalism typically occur in areas encountered during a person’s daily routine.
What is Capable Guardian Theory?
The presence of a capable guardian may deter crime
What are the two most important aspects of committing a crime to teenage robbers?
1) Escape Route
2) money available
What are five options to prevent routine victimization?
1) Quickly remove signs of victimization
2) Improve physical security
3) Block access to targets
4) Protect vulnerable areas or targets
5) Regulate access to high risk areas
What are the three areas of CPTED 3D?
1) Designation of space
2) Definition in terms of management and identity
3) Design of desired function and behaviors
What three things does CPTED target?
1) Places
2) Behavior
3) Design and use of space
