کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
269884 504712 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An analysis of evacuation travel paths on stair landings by means of conditional probabilities
ترجمه فارسی عنوان
تجزیه و تحلیل مسیرهای تخلیه سفر بر روی فرود آمدن با استفاده از احتمال احتمالی
کلمات کلیدی
تخلیه ساختمان، ادغام جریان، جنبش عابر پیاده، مسیرهای سفر، احتمال احتمالی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Occupants׳ movement on stair landings during an evacuation drill is analysed.
• Two factors are investigated: crowding and occupants׳ interactions.
• Under the observed conditions, floors are emptied from the top to the bottom.

This paper analyses data on occupants׳ movement on stair landings collected during an evacuation drill performed in a six-storey office building in the United States. A total of 215 occupant travel path trajectories were filmed and time on the stair landings and egress behaviours were analysed. Data were analysed using a probabilistic approach, i.e., the probability of different occupant travel paths were calculated in relation to two different factors: (1) crowding on the landings, and (2) the type of interactions between occupants (e.g., merging flows, deference/overtaking behaviours, etc.). Results showed that a higher number of occupants on stair landings caused an increase in the probability for (1) longer travel paths and (2) usage of the outer boundaries on the stair/landing connections. This paper highlights that data and modelling assumptions should be used after a careful evaluation of their field of applicability. In the case of a low occupant load and non-homogenous merging streams (a higher number of people entering the landing from the stairs than the door), floors tend to be emptied from the top to the bottom.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fire Safety Journal - Volume 65, April 2014, Pages 30–40
نویسندگان
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