Consulting-Specifying Engineer - September 2008 - (Page 20) Selecting appropriate egress strategies BY JEFFREY TUBBS, PE, Arup, and BRIAN MEACHAM, PE, PHD, Worcester Polytechnic Institute The selection of an appropriate egress strategy requires a good understanding of the building and its occupants, the protection measures in place, and the expected emergency response. afe, robust, intuitive egress systems that account for human behavior are an essential component of any building design. It is important that egress system strategies be developed in concert with the overall fire and life safety program. Effective egress strategies reflect the facility, how it is used, and the characteristics of its occupants. They are designed to be appropriate for the facility’s size and complexity, location of stairs and exits, fire and life safety systems, security features and arrangements, and hazards within the facility. In general, egress systems are designed to allow occupants who are not intimate S with the initial incident—the incident impacting the building—to escape the area of immediate hazard in order to reach a place of relative safety. From a basic prescriptive building code approach, fire is the most common incident of concern. However, a building and its occupants can be subjected to a range of incidents, including natural hazards, such as tornados, hurricanes, snow or ice storms, floods, and earthquakes; technological events, such power outages, vehicle impacts, gas releases, and explosions; and deliberate events, such as civil disturbances, bomb threats, and acts of terrorism. Depending on the facility, evacuation strategies may need to fulfill some or all of these objectives. The concept of protecting those “not intimate” with the incident is important. For instance, it is not reasonable to expect that any egress strategy can guarantee to help a person who falls asleep while smoking in bed and subsequently starts the bed on fire. However, it is reasonable to provide an egress strategy that will work for those persons not in the bedroom of fire origin. Egress strategies can range from evacuating all occupants (simultaneous full evacuation), to evacuating some of the 20 Consulting-Specifying Engineer • SEPTEMBER 2008
Table of Contents Feed for the Digital Edition of Consulting-Specifying Engineer - September 2008 Consulting-Specifying Engineer - September 2008 Contents Viewpoint Letters News M/ERoundtable Selecting Appropriate Egress Strategies Commissioning On-Site Electrical Systems Mentoring Control Engineers and Technicians Casting Call for Cx Case Study New Products Equipment Lifecycles Advertiser Index Green Space Consulting-Specifying Engineer - September 2008 Consulting-Specifying Engineer - September 2008 - (Page Intro) Consulting-Specifying Engineer - September 2008 - Consulting-Specifying Engineer - September 2008 (Page Cover1) Consulting-Specifying Engineer - September 2008 - Consulting-Specifying Engineer - September 2008 (Page Cover2) Consulting-Specifying Engineer - September 2008 - Consulting-Specifying Engineer - September 2008 (Page 1) Consulting-Specifying Engineer - September 2008 - Consulting-Specifying Engineer - September 2008 (Page 2) Consulting-Specifying Engineer - September 2008 - Contents (Page 3) Consulting-Specifying Engineer - September 2008 - Contents (Page 4) Consulting-Specifying Engineer - September 2008 - Contents (Page 5) Consulting-Specifying Engineer - September 2008 - Contents (Page 6) Consulting-Specifying Engineer - September 2008 - Viewpoint (Page 7) Consulting-Specifying Engineer - September 2008 - Letters (Page 8) Consulting-Specifying Engineer - September 2008 - Letters (Page 9) Consulting-Specifying Engineer - September 2008 - News (Page 10) Consulting-Specifying Engineer - September 2008 - News (Page 11) Consulting-Specifying Engineer - September 2008 - News (Page 12) Consulting-Specifying Engineer - September 2008 - News (Page 13) Consulting-Specifying Engineer - September 2008 - M/ERoundtable (Page 14) Consulting-Specifying Engineer - September 2008 - M/ERoundtable (Page 15) Consulting-Specifying Engineer - September 2008 - M/ERoundtable (Page 16) Consulting-Specifying Engineer - September 2008 - M/ERoundtable (Page 17) Consulting-Specifying Engineer - September 2008 - M/ERoundtable (Page 18) Consulting-Specifying Engineer - September 2008 - M/ERoundtable (Page 19) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 20) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 21) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 22) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 23) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 24) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 25) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 26) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 27) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 28) Consulting-Specifying Engineer - September 2008 - Selecting Appropriate Egress Strategies (Page 29) Consulting-Specifying Engineer - September 2008 - Commissioning On-Site Electrical Systems (Page 30) Consulting-Specifying Engineer - September 2008 - Commissioning On-Site Electrical Systems (Page 31) Consulting-Specifying Engineer - September 2008 - Commissioning On-Site Electrical Systems (Page 32) Consulting-Specifying Engineer - September 2008 - Commissioning On-Site Electrical Systems (Page 33) Consulting-Specifying Engineer - September 2008 - Commissioning On-Site Electrical Systems (Page 34) Consulting-Specifying Engineer - September 2008 - Commissioning On-Site Electrical Systems (Page 35) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 36) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 37) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 38) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 39) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 40) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 41) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 42) Consulting-Specifying Engineer - September 2008 - Mentoring Control Engineers and Technicians (Page 43) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 44) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 45) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 46) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 47) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 48) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 49) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 50) Consulting-Specifying Engineer - September 2008 - Casting Call for Cx (Page 51) Consulting-Specifying Engineer - September 2008 - Case Study (Page 52) Consulting-Specifying Engineer - September 2008 - Case Study (Page 53) Consulting-Specifying Engineer - September 2008 - New Products (Page 54) Consulting-Specifying Engineer - September 2008 - New Products (Page 55) Consulting-Specifying Engineer - September 2008 - New Products (Page 56) Consulting-Specifying Engineer - September 2008 - New Products (Page 57) Consulting-Specifying Engineer - September 2008 - New Products (Page 58) Consulting-Specifying Engineer - September 2008 - New Products (Page 59) Consulting-Specifying Engineer - September 2008 - New Products (Page 60) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 61) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 62) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 63) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 64) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 65) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 66) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 67) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 68) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 69) Consulting-Specifying Engineer - September 2008 - Equipment Lifecycles (Page 70) Consulting-Specifying Engineer - September 2008 - Advertiser Index (Page 71) Consulting-Specifying Engineer - September 2008 - Green Space (Page 72) Consulting-Specifying Engineer - September 2008 - Green Space (Page Cover3) Consulting-Specifying Engineer - September 2008 - Green Space (Page Cover4)
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