Accession Number : ADA255754
Title : Effects of Seating Configuration and Number of Type III Exists on Emergency Aircraft Evacuation.
Descriptive Note : Final rept.,
Corporate Author : FEDERAL AVIATION ADMINISTRATION WASHINGTON DC OFFICE OF AVIATION MEDICINE
Personal Author(s) : McLean, G A ; Chittum, C B ; Funkhouser, G E ; Fairlie, G W ; Folk, E W
Report Date : Aug 1992
Pagination or Media Count : 13
Abstract : An increase in the required pathway width from aircraft center aisles to Type III overwing exits is being weighed by the FAA. To augment the analysis, an examination of seat/exit configuration effects on simulated emergency egress was conducted in the CAMI Evacuation Research Facility. METHODS. Four subject groups traversed four different seat/exit configurations in a counter-balanced, repeated-measures design. Pathway width was modified by altering seat pitch. RESULTS. In single-exit trials the fastest times and highest flow-rates occurred with a 20 pathway between triple seats or a 10 pathway between double seats. Double exits produced 36% shorter egress times (p.007), although flow-rates declined 11% and exit Plug removal times increased 32%, compared to single exits. Efficient egress requires optimization of the space around the exit. Generally, wider pathways and fewer obstructions enhance this process; however; when available space exceeds individual passenger needs, conflicts may be produced which inhibit egress. Emergency Evacuations, Type III Exits, Seat Pitch, Egress.
Descriptors : *EMERGENCIES , *AVIATION SAFETY , *EXITS , REMOVAL , AIRCRAFT , RESEARCH FACILITIES , CONFIGURATIONS , EVACUATION , SEATS , PASSENGERS , PLUGS , CONFLICT , FLOW RATE , RATES , OPTIMIZATION
Subject Categories : Commercial and General Aviation
Escape, Rescue and Survival
Distribution Statement : APPROVED FOR PUBLIC RELEASE