Notes

Outline

Department of Buildings Emergency Response & Building Safety Presented to the NCSBCS/AMBCO Louisville, Kentucky Patricia J. Lancaster, AIA Commissioner, NYC Department of Buildings October 22, 2002

Overview I. 9/11 Response II. Lessons Learned III. Moving Forward

I. 9/11 Response A. Hazard Identification B. Rapid Assessment of Buildings C. Supporting Re-occupancy

A. Hazard Identification WTC Towers Consultation and safety for recovery operations Collateral Damage Subsequent events (e.g. 7 WTC) Hazard areas

B. Rapid Assessment of Buildings 13 teams deployed to survey buildings in immediate vicinity for damage Each team with 2 inspectors and 1 professional Inspected over 400 buildings in lower Manhattan Range of damage Complete collapse or requiring demolition Partial collapse Major structural damage Moderate (non-structural) damage or debris

B. Rapid Assessment of Buildings (continued)

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B. Rapid Assessment (continued) Additional Safety Inspections Elevator Safety Sweeps - to ensure no one was trapped in non-functioning elevators Inspected electrical service areas for damage and flooding Building Condition Information Coordination with DDC survey team to identify safety requirements (sheds, netting, cleaning) Information to other agencies and public through DOB desk at OEM Command Center

C. Supporting Re-Occupancy Defining Restricted Zone Civilian and contractor access areas Safety plans and construction Building Re-Occupancy Guidelines Structural stability, utility, hazardous materials and mechanical systems, cleaning

C. Supporting Re-Occupancy (continued) Monitoring and Follow-up Rezoning and access as work completed Ensuring problems addressed NYC did related safety emergency work then turned back building to owner for remedial work and monitored it

II. Lessons Learned A. Mobilizing and Managing Resources B. Communication and Coordination C. Managing Expectations

III. Moving Forward A. WTC Building Code Task Force B. Supporting Emergency Response

III. Moving Forward (continued) World Trade Center Building Code Task Force - Area of Focus Structural Strength Review structural design requirements and the interrelated elements that contribute to structural robustness and redundancy in areas throughout typical buildings. Incorporation of revised progressive collapse requirements into the NYC Building Code

III. Moving Forward (continued) WTCBCTF - Area of Focus Fire Protection Review design, construction and operating requirements to determine if they currently provide sufficient protection from the effects of fire and support subsequent attempts to control fire events. Retroactive installation of sprinklers in Occupancy Group E buildings over 75 feet in height within a 15 year period. Enhancing Fire Department emergency response communications in high-rise buildings. Requiring a “Critical Building Information Card” in all buildings over 75 feet in height.

III. Moving Forward (continued) WTCBCTF - Area of Focus Emergency Evacuation Supporting efficient and effective evacuation requires designers, building operators and emergency response personnel to consider numerous physical, psychological and temporal factors. Evacuation planning for non-fire events in buildings over 75 feet in height. Enhance marking of stairs and exits. Protection of elevator vestibules with fire rated separations in all new construction.

III. Moving Forward (continued) WTCBCTF - Area of Focus Mechanical Systems. Mechanical systems support and sometimes connect virtually every part of a building.  These systems should support occupant safety in both normal and emergency conditions. Controlled access to HVAC mechanical areas. Above grade location of air intake for all new construction.

III. Moving Forward (continued)

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