Experimental study on the elderly’s walking speed considering smoke density and visual acuity in buildings

Huang, Lidi; Luo, Kaizhou; Xu, Jiejing; Xu, Xinxin; Dong, Zhilong

doi:10.1016/j.ssci.2020.105075

Cited by 7 publications

(3 citation statements)

References 16 publications

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“…It has been found that velocity-step width, velocity-step length, velocity-stepping time, and the relationship between the step length and step frequency for different groups have considerable differences and are affected by evacuee gender, age, height, and state of health [9,10,18]. Children [19], aged people [20], disabled people, and patients [21][22][23] are studied on the classification to identify the factors that inhibit the implementation of safety evacuation in each group. Evacuee behaviors show great differences under the influence of personality, age, gender, and other factors inhibiting the implementation of safety evacuations.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of Frame-Core Tube Building Construction Sites on Safety Evacuation

Yang

Yao

2023

Buildings

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FTBCS safety evacuation of frame-core tube buildings on construction sites (FTBCS) is one of the most challenging evacuation scenarios conceivable. This investigation proposes a practical calculation method and examines the parameters’ influence on safety evacuation in frame-core tube building construction sites. Firstly, the characteristics of constructors from 30 FTBCS in China are analyzed. After an investigation of 23,230 constructors, it was found that constructors have unique properties in gender ratio, age composition, and occupational age. Female constructors account for about 10%, and aged constructors account for 0.28%. Constructors within five years of occupational age account for about 26.39%. Evacuation speeds on different working faces including frames and core tubes are tested, and the decline coefficients of 0.80 and 0.70 are taken consideration into the evacuation model. Then, an exclusive evacuation time algorithm that is appropriate for FTBCS is proposed. Multiple parameters’ influence on safety evacuation is researched by numerical simulation. With a 5.0% growth of female gender ratio, aged constructors, and constructors within five years of occupational age, the average movement distance is increased by 10.32 m, 0.67 m, and 11.19 m, respectively. The age composition ratio and occupational age ratio mainly affect the evacuation process by evacuation speed and path programming, respectively, and the leading influencing factors are not distinct in their gender ratio effects. Optimization of construction layout can reduce the evacuation time from the horizontal direction plane effectively, and then relieve clustering and crowding on platforms.

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Section: Introductionmentioning

confidence: 99%

An Investigation of Frame-Core Tube Building Construction Sites on Safety Evacuation

Yang

Yao

2023

Buildings

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“…, 2006). An experimental investigation was also undertaken to assess older people's walking speed in a smoke-filled environment (Huang et al. , 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Another study used convenience surveys to look into the prevalence of fire safety equipment and risk factors for older occupants (Zhang et al, 2006). An experimental investigation was also undertaken to assess older people's walking speed in a smoke-filled environment (Huang et al, 2021). There is a dearth of fire assessment methods for high-rise residential buildings, especially older occupants.…”

Section: Introductionmentioning

confidence: 99%

Fire safety assessment for older adults in high-rise residential buildings in India: a comprehensive study

Kumar

Khare

Sankat

et al. 2022

IJBPA

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PurposeThe statistics show that older adults have been major fire victims in high-rise buildings. However, the fire safety building codes in most countries are not inclusive and do not reflect provisions for older adults. The research aims to develop a fire risk assessment index system for older adults living in high-rise residential buildings in India. The study further develops a fire rating system to improve fire safety provisions in high-rise buildings in India.Design/methodology/approachThe paper employs Delphi, analytic hierarchy process (AHP) and fuzzy comprehensive risk evaluation techniques. It considers 18 in-depth interviews and group discussions with builders, developers, architects, policymakers, and fire safety experts and consultants to develop a fire risk assessment system for older occupants living in high-rise residential buildings in India.FindingsThe fire protection systems and fire management systems are not as per the needs of older adults. The egress system components need improvisation considering the challenges of older adults.Research limitations/implicationsThe study is limited to older adults living in high-rise residential buildings in the capital city of Gujarat, Ahmedabad.Practical implicationsThis study will assist policymakers in developing fire safety standards that are targeted to the needs of older persons living in high-rise residential buildings during a fire evacuation.Originality/valueWhile several approaches for measuring fire risk in high-rise residential buildings exist, no such system has been developed specifically for older adults in India.

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The effects of cultural behavior on the evacuation of the first residential towers built in Iran (case study: Saman twin towers from the 1970s in Tehran)

Soltanzadeh

Mazaherian

Heidari

2023

Journal of Building Engineering

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Experimental study on the elderly’s walking speed considering smoke density and visual acuity in buildings

Cited by 7 publications

References 16 publications

An Investigation of Frame-Core Tube Building Construction Sites on Safety Evacuation

An Investigation of Frame-Core Tube Building Construction Sites on Safety Evacuation

Fire safety assessment for older adults in high-rise residential buildings in India: a comprehensive study

The effects of cultural behavior on the evacuation of the first residential towers built in Iran (case study: Saman twin towers from the 1970s in Tehran)

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