Environmental design refers to the process of addressing environmental parameters in planning programs, policies or concepts. It is part of the "10 principles of crime prevention" following a U.K. initiative.
- Environmental design can impact social/criminal/terrorist behaviour in a positive or negative way.
- Environmental design can mitigate, lessen or even prohibit criminal or terrorist acts.
- Environmental design can reduce crime and terrorist risks and consequences.
- Environmental design can decrease vulnerability and increase resilience.
- Specific environmental design of built infrastructure can limit the damage of terrorist attacks.
Approaches how to address it
- Get familiar with environmental design planning principles;
- Get familiar with general design aspects and structural/material aspects;
- Consider designing out principles; 
- Get familiar with initiatives facilitating environmental design; 
- Integrate considerations on response and emergency measures in the planning process;
- Integrate citizens through communication and participation methods.
Environmental design principles addressing counter-terrorism
Structural planning principles, according to CPTED (Crime Prevention Through Environmental Design),are:
- Access control;
- Stand off distances, to keep people and bomber vehicles away from targets;
- Laminated glass;
- Framed structures;
- Bombshelter areas etc.
Footnotes and references
- See e.g. HM Government. Retrieved from: http://www.homeoffice.gov.uk/publications/counter-terrorism/crowded-places/design-tech-issues?view=Binary [last access: 2012-05-23].
- See e.g. International CPTED Association. Retrieved from: http://www.cpted.net/ [last access: 2012-10-04].