In CPTED design, improving natural surveillance primarily leads to which outcome?

• A. Reduced lighting requirements
• B. Increased visibility and deterrence
• C. Higher maintenance costs with no benefit
• D. More patrols required

Answer: (B)

Natural surveillance relies on making it easy for people to observe what’s going on in their surroundings. When sightlines are clear, entrances and activity areas are visible, and hidden spots are minimized, residents, workers, and passersby can notice suspicious behavior more readily. That increased visibility raises the perceived risk for potential offenders, which discourages crime through deterrence and a sense that someone is always watching.

Lighting often complements this, but the core idea is about openness and visibility that allow everyday guardians to monitor spaces. This approach typically reduces the need for frequent patrolling because the environment itself promotes natural monitoring and safety.