Tips for designing a good barrier system

• Conceal the protection • Retain pedestrian access, requiring permeability • Integrate security design and urban design • Incorporate streetscape elements, such as trees and light fixtures, only as non- structural components of the barrier design • Combine elements for the best aesthetic effect and public benefit appropriate to the street, site, location, and urban design • Ensure that all elements are designed and tested to resist site-specific vehicular threats Prepared for the General Services Administration and reported in Building Security: Handbook for Architectural Planning and Design, edited by Barbara A. Nadel (McGraw-Hill). Recommendations from Cox, Graae + Spack.