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Article
Publication date: 29 August 2018

Muhammad Masood Rafi, Tariq Aziz and Sarosh Hashmat Lodi

Disaster management information systems (DMISs) have been proposed in different parts of the world for effective response to a disaster. The purpose of this paper is to: compare…

Abstract

Purpose

Disaster management information systems (DMISs) have been proposed in different parts of the world for effective response to a disaster. The purpose of this paper is to: compare design approaches of these DMISs; examine similarities in the design of databases and communication infrastructure; and draw conclusions. Based on the examination of the studies, future opportunities have been identified and discussed.

Design/methodology/approach

The studies in the available literature on the designs of automated DMISs have been reviewed in the presented paper to identify similarities in design premise, conceptual design and design considerations.

Findings

The examination of the available studies indicates that the research on DMIS has increased significantly in different countries of the world since 2004. Data of baseline information and available resources are required by most of the presented studies, as these data are necessary for effective response to a disaster. The communication infrastructures suggested include local area network, wide area network and satellite communication for better coordination between the responders and different relief agencies at different locations. The connectivity to these networks is possible through Ethernet, Wi-Fi, general packet radio service or satellite.

Research limitations/implications

Although the research on DMIS has increased significantly over the last one decade, the studies are still few in numbers. Similarly, only few of the proposed systems have been developed and tested during a real disaster.

Practical implications

The presented review of available studies provides a holistic view of the proposed DMISs which could be useful to the disaster management authorities.

Originality/value

The paper provides valuable information on the differences in the proposed DMISs. This can help in identifying the gaps for future improvements for increased effectiveness of a DMIS. The future opportunities have also been identified in the presented paper and are discussed.

Details

Online Information Review, vol. 42 no. 6
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 14 November 2016

Muhammad Masood Rafi, Sarosh Hashmat Lodi, Muhammad Ahmed, Amit Kumar and Firoz Verjee

This paper aims to present the studies which were carried out to determine building typology in Northern Pakistan, which is a seismically active region.

Abstract

Purpose

This paper aims to present the studies which were carried out to determine building typology in Northern Pakistan, which is a seismically active region.

Design/methodology/approach

A total of 41 towns and cities were surveyed to collect the data of building types. Help was also taken from global positioning system and satellite imagery.

Findings

In total, 14 different types of buildings were identified in the region based on the structural system and combination of wall and roof materials; each of them was assigned an appropriate designation. The walls in these buildings were made of block, stone or brick, whereas the roof consisted of corrugated galvanised iron sheet, thatched roof, precast concrete planks or reinforced concrete (RC). Only 6 per cent buildings were found to be engineered RC buildings; this indicates a significance proportion of non-engineered building stock in Northern Pakistan.

Research limitations/implications

The surveys were conducted in some of the selected areas. Other areas are beyond the scope of this work.

Practical implications

The presence of a huge deficient building stock in Pakistan indicates a major seismic risk. The seismic losses are largely dependent on the earthquake resistance of existing buildings and building stock. An inventory of existing buildings and their types can help in assessing seismic vulnerability of the built environment, which may lead to the development of policies for seismic risk reduction.

Originality/value

Presently, housing encyclopaedia does not exist in Pakistan. As a result, housing typology in the country is not known. The presented study addresses this gap in part. Housing typology surveys were conducted to study the typical construction practices in the selected areas and to determine the proportions of different building types in the overall building stock.

Details

International Journal of Disaster Resilience in the Built Environment, vol. 7 no. 5
Type: Research Article
ISSN: 1759-5908

Keywords

Article
Publication date: 7 July 2017

Muhammad Masood Rafi, Tariq Aziz and Sarosh Hashmat Lodi

This paper aims to present the results of testing of low-strength concrete specimens exposed to elevated temperatures. These data are limited in the existing literature and do not…

Abstract

Purpose

This paper aims to present the results of testing of low-strength concrete specimens exposed to elevated temperatures. These data are limited in the existing literature and do not exist in Pakistan.

Design/methodology/approach

An experimental testing programme has been employed. Cylindrical specimens of 100 × 200 mm were used in the testing programme. These were heated at temperatures which were varied from 100°C to 900°C in increment of 100°C. Similar specimens were tested at ambient temperature as control specimens. The compressive and tensile properties of heat treated specimens were determined.

Findings

The colour of concrete started to change at 300°C and hairline cracks appeared at 400°C. Explosive spalling was observed in few specimens in the temperature range of 400°C-650°C which could be attributed to the pore pressure generated by steam. Significant loss of concrete compressive strength occurred on heating temperatures larger than 600°C, and the residual compressive strength was found to be 15 per cent at 900°C. Residual tensile strength of concrete became less than 10 per cent at 900°C. The loss of concrete stiffness reached 85 per cent at 600°C. Residual Poisson’s ratio of concrete increased at high temperatures and became nearly six times larger at 900°C as compared to that at ambient temperature.

Research limitations/implications

The parameters of the study included heating temperature and effects of temperature on strength and stiffness properties of the concrete specimens.

Practical implications

Building fire incidents have increased in Pakistan. As a large number of reinforced concrete (RC) buildings exist in the country, the data related to elevated temperature properties of concrete are required. These data are not available in Pakistan presently. The study aims at providing this information for the design engineers to enable them to assess and increase fire resistance of RC structural members.

Originality/value

The presented study is unique in its nature in that there is no published contribution to date, to the best of authors’ knowledge, which has been carried out to assess the temperature-dependent mechanical properties of concrete in Pakistan.

Details

Journal of Structural Fire Engineering, vol. 8 no. 4
Type: Research Article
ISSN: 2040-2317

Keywords

Article
Publication date: 17 October 2017

Muhammad Masood Rafi, Abdul Basit Dahar and Tariq Aziz

The purpose of this paper is to present the results of experimental testing of steel rebars at elevated temperatures. Three types of bars available in the local market in Pakistan…

Abstract

Purpose

The purpose of this paper is to present the results of experimental testing of steel rebars at elevated temperatures. Three types of bars available in the local market in Pakistan were used. These data are not available in Pakistan.

Design/methodology/approach

Three types of bars were used, which included cold-twisted ribbed (CTR), hot-rolled deformed (HRD) and thermo-mechanically treated (TMT) bars. The diameter of the bar of each type was 16 mm. The bars were heated in an electrical furnace at temperatures which were varied from 100°C to 900°C in increment of 100°C. Bars of each type were also tested at ambient temperature as control specimens. The change of strength, strain and modulus of elasticity of the bars at high temperatures were determined.

Findings

The mechanical properties of the bars were nearly unaffected by the temperatures up to 200°C. CTR bars did not show yield plateau and strain hardening both at ambient and high temperatures. The high temperature yield strength and elastic modulus for all the three types of bars were similar at all temperatures. The yield plateau of both the HRD and TMT bars disappeared at temperatures greater than 300°C. The ultimate strength at high temperature of the HRD and TMT bars was also similar. The behaviours of the HRD and TMT bars changed to brittle beyond 400°C as compared to their behaviours at ambient temperature. The CTR bars exhibited ductile characteristics at failure at all the exposure temperatures relative to their behaviour at ambient temperature.

Research limitations/implications

The parameters of the paper included the rebar type and heating temperature and the effects of temperature on strength and stiffness properties of the steel bars.

Practical implications

Building fire incidents have increased in Pakistan. As reinforced concrete (RC) buildings exist in the country in significant numbers, the data related to elevated temperature properties of steel is required. These data are not available in Pakistan presently. The presented paper aims at providing this information for the design engineers to enable them to assess and increase fire resistance of RC structural members.

Originality/value

The presented paper is unique in its nature in that there is no published contribution to date, to the best of authors’ knowledge, which has been carried out to assess the temperature-dependent mechanical properties of steel reinforcing bars available in Pakistan.

Details

Journal of Structural Fire Engineering, vol. 9 no. 3
Type: Research Article
ISSN: 2040-2317

Keywords

Open Access
Article
Publication date: 25 September 2019

Venkatesh Kodur, Puneet Kumar and Muhammad Masood Rafi

The current fire protection measures in buildings do not account for all contemporary fire hazard issues, which has made fire safety a growing concern. Therefore, this paper aims…

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Abstract

Purpose

The current fire protection measures in buildings do not account for all contemporary fire hazard issues, which has made fire safety a growing concern. Therefore, this paper aims to present a critical review of current fire protection measures and their applicability to address current challenges relating to fire hazards in buildings.

Design/methodology/approach

To overcome fire hazards in buildings, impact of fire hazards is also reviewed to set the context for fire protection measures. Based on the review, an integrated framework for mitigation of fire hazards is proposed. The proposed framework involves enhancement of fire safety in four key areas: fire protection features in buildings, regulation and enforcement, consumer awareness and technology and resources advancement. Detailed strategies on improving fire safety in buildings in these four key areas are presented, and future research and training needs are identified.

Findings

Current fire protection measures lead to an unquantified level of fire safety in buildings, provide minimal strategies to mitigate fire hazard and do not account for contemporary fire hazard issues. Implementing key measures that include reliable fire protection systems, proper regulation and enforcement of building code provisions, enhancement of public awareness and proper use of technology and resources is key to mitigating fire hazard in buildings. Major research and training required to improve fire safety in buildings include developing cost-effective fire suppression systems and rational fire design approaches, characterizing new materials and developing performance-based codes.

Practical implications

The proposed framework encompasses both prevention and management of fire hazard. To demonstrate the applicability of this framework in improving fire safety in buildings, major limitations of current fire protection measures are identified, and detailed strategies are provided to address these limitations using proposed fire safety framework.

Social implications

Fire represents a severe hazard in both developing and developed countries and poses significant threat to life, structure, property and environment. The proposed framework has social implications as it addresses some of the current challenges relating to fire hazard in buildings and will enhance overall fire safety.

Originality/value

The novelty of proposed framework lies in encompassing both prevention and management of fire hazard. This is unlike current fire safety improvement strategies, which focus only on improving fire protection features in buildings (i.e. managing impact of fire hazard) using performance-based codes. To demonstrate the applicability of this framework in improving fire safety in buildings, major limitations of current fire protection measures are identified and detailed strategies are provided to address these limitations using proposed fire safety framework. Special emphasis is given to cost-effectiveness of proposed strategies, and research and training needs for further enhancing building fire safety are identified.

Details

PSU Research Review, vol. 4 no. 1
Type: Research Article
ISSN: 2399-1747

Keywords

Article
Publication date: 28 October 2014

Muhammad Masood Rafi, Ashar Hashmat Lodi and Muhammad Arsalan Effendi

Road traffic crashes (RTCs) result in creating significant social and economic hazard for affectees, their families and society. The purpose of this paper is to present studies…

Abstract

Purpose

Road traffic crashes (RTCs) result in creating significant social and economic hazard for affectees, their families and society. The purpose of this paper is to present studies which were conducted to study the patterns of RTCs in Karachi which is a metropolitan city of Pakistan. The studies were conducted on one of the busiest roads in the city named as Shara-e-Faisal. The influence and contribution of different factors in RTCs has been studied and hazardous road sections of Shara-e-Faisal have been identified. Based on the data analysis, an evaluation model has been suggested to reduce the hazard of RTCs on Shara-e-Faisal. The objective of the presented studies is to increase the present level of safety of road travel by reducing crashes on Shara-e-Faisal.

Design/methodology/approach

Existing data of RTCs in Karachi have been analysed for the presented studies. For this purpose, Shara-e-Faisal was divided in sections of 1 km length to study the vehicle crash pattern. Location surveys were conducted to record physical conditions of this road. A cluster analysis was carried out to identify hazardous sections of the road. An evaluation model has been suggested in the end to reduce the hazard of RTCs by identifying hazardous road sections of Shara-e-Faisal.

Findings

The analysis of the data revealed that the crashes were higher over weekend and on Monday. Male population, particularly young people, and motorcycle riders were the largest affectees of RTCs. In general, more daytime crashes were recorded as compared to nighttime crashes. The crashes in the mid block of the road and those involving rear-end collisions were higher. The hazardous road locations were related to poor road conditions. Statistical analysis indicated that alternate routes were required to reduce the RTC hazard on Shara-e-Faisal.

Research limitations/implications

The paper is a small, but an original, contribution to identify a potential hazard which is faced by the community in the city. This is the first attempt (to the best of authors’ knowledge) to address the issue of RTCs in Karachi from an engineering view point.

Practical implications

The suggested model can be employed by the authorities as a guideline to mitigate the hazard of road crashes in the country.

Originality/value

The paper provides valuable information on the road traffic incidents, their pattern and contributing factors in one of the largest metropolis of Pakistan. The suggested model can become helpful in reducing RTCs in Pakistan.

Details

Disaster Prevention and Management, vol. 23 no. 5
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 17 February 2012

Muhammad Masood Rafi, Syed Wasiuddin and Salman Hameed Siddiqui

There is an acute shortage of infrastructure to deal with fire hazard in big cities in Pakistan. Consequently, fire hazard poses a serious threat to economic and social activites…

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Abstract

Purpose

There is an acute shortage of infrastructure to deal with fire hazard in big cities in Pakistan. Consequently, fire hazard poses a serious threat to economic and social activites in these cities. Unfortunately, the scale of this threat is not fully recognised in Pakistan despite the fact that recent fire incidences in different cities of Pakistan have resulted in considerable economic and life losses. The purpose of this paper is to present the results of a survey which was conducted in one of the largest cities of Pakistan to determine the nature and level of this threat. A critical evaluation of available resources with the Fire Brigade Department (FBD) to deal with the fire hazard in the city confirmed a lack of infrastructure facilities and adequate training. A conceptual framework model for fire risk management is proposed to reduce the level of this threat.

Design/methodology/approach

This study is based on a survey of fire exposed buildings in Karachi (one of the largest cities of Pakistan) and the analysis of available resources and infrastructure of FBD. A total of 13 sites were visited and interviews were conducted. Fire stations in the city were visited and an inventory of available resources was prepared. The data of fire incidents and human and economic losses were collected and analysed. Based on the findings, a conceptual framework model was suggested for fire risk management in the city.

Findings

The survey of the fire exposed structures indicated that negligence, violation of building codes, unawareness of safety measures, carelessness, and lack of training were the major causes of fire incidents. An acute shortage of facilities and infrastructure for fire fighting was noted. The recording mechanism of data related to fire incidents was found to be inadquate.

Research limitations/implications

The paper is a small but original contribution to identify a potential hazard which is faced by the businesses and community in the city. This is the first attempt (to the best of authors’ knowledge) to mitigate the effects of fire hazard.

Practical implications

The suggested model can be employed by the authorities as a guideline to mitigate fire hazard in the country.

Originality/value

The paper provides valuable information on the fire incidents and human and economic losses in Pakistan. The suggested model can become helpful in reducing fire hazard in Pakistan.

Details

Disaster Prevention and Management: An International Journal, vol. 21 no. 1
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 3 November 2021

Arooba Chaudhary, Talat Islam, Hafiz Fawad Ali and Saqib Jamil

This paper aims to investigate the effect of paternalistic leadership (benevolent, moral and authoritarian) on knowledge sharing of nurses through the mediation of organizational…

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Abstract

Purpose

This paper aims to investigate the effect of paternalistic leadership (benevolent, moral and authoritarian) on knowledge sharing of nurses through the mediation of organizational commitment (affective, continuance and normative). Further, the study examines the moderating role of Islamic work ethics on the association between organizational commitment and knowledge sharing.

Design/methodology/approach

In this quantitative study, data was collected from 312 nurses working in the health-care sector of Pakistan through “Google Forms” in two waves. Moreover, structural equation modeling was used to test the proposed hypotheses.

Findings

The study noted affective and normative commitment as mediators between the associations of benevolent, moral and authoritarian leadership with knowledge sharing, whereas continuance commitment was not found as an explaining variable. In addition, Islamic work ethics was found to strengthen the association of affective and normative commitment with knowledge sharing. However, Islamic work ethics was found to weaken the association between continuance commitment and knowledge sharing.

Practical implications

This study offers practical insights for health-care executives to act as fatherly figures to enhance the knowledge sharing of their nurses. The study recommends that managers in the health-care system build such an environment that helps nurses follow Islamic work ethics. It may enhance their level of organizational commitment and encourage them to engage in knowledge sharing behaviors to have a successful work environment.

Originality/value

To the best of the authors’ knowledge, this research is the first to extend the literature on paternalistic leadership. More specifically, this study investigated how various dimensions of paternalistic leadership (benevolent, moral and authoritarian) effects three-dimensional commitment (affective, continuance and normative) to enhance knowledge sharing behavior among nurses.

Article
Publication date: 18 September 2023

Xiao-Yu Xu, Syed Muhammad Usman Tayyab, Qingdan Jia and Albert H. Huang

Video game streaming (VGS) is emerging as an extremely popular, highly interactive, inordinately subscribed and very dynamic form of digital media. Incorporated environmental…

Abstract

Purpose

Video game streaming (VGS) is emerging as an extremely popular, highly interactive, inordinately subscribed and very dynamic form of digital media. Incorporated environmental elements, gratifications and user pre-existing attitudes in VGS, this paper presents the development of an extended model of uses and gratification theory (EUGT) for predicting users' behavior in novel technological context.

Design/methodology/approach

The proposed model was empirically tested in VGS context due to its popularity, interactivity and relevance. Data collected from 308 VGS users and structural equation modeling (SEM) was employed to assess the hypotheses. Multi-model comparison technique was used to assess the explanatory power of EUGT.

Findings

The findings confirmed three significant types elements in determining VGS viewers' engagement, including gratifications (e.g. involvement), environmental cues (e.g. medium appeal) and user predispositions (e.g. pre-existing attitudes). The results revealed that emerging technologies provide potential opportunities for new motives and gratifications, and highlighted the significant of pre-existing attitudes as a mediator in the gratification-uses link.

Originality/value

This study is one of its kind in tackling the criticism on UGT of considering media users too rational or active. The study achieved this objective by considering environmental impacts on user behavior which is largely ignored in recent UGT studies. Also, by incorporating users pre-existing attitudes into UGT framework, this study conceptualized and empirically verified the higher explanatory power of EUGT through a novel multi-modal approach in VGS. Compared to other rival models, EUGS provides a more robust explanation of users' behavior. The findings contribute to the literature of UGT, VGS and users' engagement.

Details

Information Technology & People, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0959-3845

Keywords

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