Are tall buildings easy targets for terrorism? Will the skyscraper survive? Experts express their opinions.
"[In] their audacious pursuit of astonishing height -- to glorify a god, immortalize a builder, mark a spot or lure a tenant -- architects have created pyramids, domes, minarets, campaniles, spires and skyscrapers. But at the World Trade Center, they inadvertently created something else. Targets. Suddenly, height equals vulnerability. Engineers have a new potential calamity against which to design. And that will change the structural, financial and symbolic equation behind supertall buildings, though it may not doom the species." This article includes comments from William J. Mitchell, dean of the School of Architecture and Planning at M.I.T., A. Eugene Kohn of Kohn Pedersen Fox, the designers of the Shanghai World Financial Center, and Guy F. Tozzoli, who supervised the planning and building of the trade center in the 1960's and 70's."
Thanks to Abhijeet Chavan
FULL STORY: Reaching the Sky, and Finding a Limit

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Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
New York City School Construction Authority
Village of Glen Ellyn
Central Transportation Planning Staff/Boston Region MPO
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions