Rooftop Helipad

Emily Alpert Reyes reports that Los Angeles has overturned a long-standing requirement for its skyscrapers to have flat roofs to accommodate the fire department's helicopters in the event of an emergency.
16 hours ago   Los Angeles Times
Los Angeles Fire Code rules requiring helicopter landing zones on the city's high rises has led to one of the most bland skylines in America. As the city updates its fire code, a new working group is seeking to unleash the creativity of designers.
Aug 26, 2012   The Architect's Newspaper
Ever wonder why LA's skyline is so bland? Apparently it was planned that way.
Jan 18, 2012   KCET Departures