Council on Tall Buildings and Urban Habitat
9/11 – Ten Years on: CTBUH Reflections
6th September, 2011

In the week that we mark the tenth anniversary of the 9/11 events and the collapse of the World Trade Center towers, the Council on Tall Buildings and Urban Habitat has commissioned a number of articles from industry leaders, reflecting on how the world of tall buildings has changed since then. What has been the direct impact of 9/11 on the typology? How has that impact varied with geography and culture around the world? What has become of the predictions of the end of the skyscraper typology which immediately followed the event? Has too much changed, or too little? Contributors include Leslie Robertson, William Baker, Eugene Kohn, Paul Goldberger, Gene Corley and others. The articles can be accessed at the following links:


Charles Killebrew, NBBJ Architects

Tall Buildings as a Viable Proposition 
Leslie. Robertson, LERA; William. Baker, SOM; & Eugene Kohn, KPF

Talking Tall: The Global Impact of 9/11 
 Leaders / Country Representatives

Debating Tall: Are the Twin Towers Missed? 
Tim Johnson, NBBJ & Paul Goldberger, The New Yorker

Evolution of Building Code Requirements in a Post 9/11 World
David Drengenberg & Gene Corley, CTL Group

Urban Terrorism: An Overview
Sofia Dermisi, Walter E. Heller College

Case Study: The New One World Trade Center 
Kenneth Lewis & Nicholas Holt, Skidmore Owings & Merrill

Revitalizing Lower Manhattan
Jan Klerks, CTBUH

Planning the World Trade Center: 40 Years Apart 
Jan Klerks, CTBUH

How the WTC has affected Life Safety Design 
Carl Baldassarra & Jon Evenson, RJA & Simon Lay, WSP
Challenging Attitudes on Codes and Safety
Jose Torero, University of Edinburgh
Rethinking Evacuation: Rethinking Cities 
Antony Wood, CTBUH
/Illinois Institute of Technology
Impacts on Building Security Measures 
Geoff Craighead, Universal Protection Service
Tall Buildings in Numbers: New York City Scrapers 
Nathaniel Hollister, Jan Klerks & Antony Wood, CTBUH

Book Reviews; Books on the World Trade Center


The whole collection of articles has been published in CTBUH Journal 2011 Issue III, a special edition of the quarterly-produced CTBUH Journal.