When planning a facility, the most important factor in determining the relative security of the structure is:

While access points are important for controlling entry and exit, they are only one aspect of a facility's security. A facility located in a high-crime area with poor overall site selection may still be at risk, regardless of how well access points are managed. Therefore, access points alone do not provide a comprehensive security solution.

Although a robust security system is crucial for protecting a facility, its effectiveness largely depends on the context provided by the site selection. No matter how advanced a security system may be, it cannot fully compensate for the vulnerabilities presented by a poorly chosen location, such as high crime rates or inadequate emergency response access.

The materials and design of a structure contribute to its overall durability and resistance to certain threats. However, these factors are secondary to site selection since a well-constructed building in a dangerous location may still face significant security challenges. Therefore, the composition of the structure does not outweigh the importance of its location.