Critical analysis of the application of the Safe Working Cycle (SWC)

2015 ◽  
Vol 13 (3) ◽  
pp. 244-265 ◽  
Author(s):  
Daniel W.M. Chan ◽  
Tracy N.Y. Choi
Keyword(s):  
Hong Kong ◽  
Construction Projects ◽  
Professional Staff ◽  
Safety Performance ◽  
Facilities Management ◽  
Project Schedule ◽  
Content Type ◽  
Working Cycle ◽  
Depth Interviews ◽  
Safe Working

Purpose – This paper aims to investigate the effectiveness of the safe working cycle (SWC) in improving existing site safety performance of construction projects in Hong Kong and to identify the perceived benefits, potential difficulties and insightful recommendations of implementing the SWC in the future. Design/methodology/approach – The professional views on the effectiveness of implementing the SWC, the benefits and difficulties of the SWC, together with the effective recommendations for future execution of the SWC, were gleaned by ten in-depth interviews involving the representatives of senior professional staff members from major construction companies and related government works departments. Findings – Responses from in-depth interviews indicated that the SWC is generally effective in improving site safety performance and preventing the occurrence of construction accidents. The implementation of the SWC is also found useful in facilitating safety-related communications, enhancing safety awareness of frontline workers and identifying potential hazards. However, the industrial practitioners encountered some difficulties associated with the SWC, including limited space on worksites, irregular working schedules for the different trades working on-site, a lack of motivation for participation by workers and an over-tight project schedule that causes time pressure to complete work resulting in a lack of priority. Practical implications – The recommended measures include the establishment of a reward scheme, engagement of professional aerobic trainers, design of site-specific SWC, mandatory enforcement of the SWC through legislation, regular review of the SWC effectiveness, increased financial support from client organisations and creation of a more realistic project schedule. Originality/value – This study has instigated a wider debate on the underlying benefits and potential difficulties of the SWC for reference by the construction industry at large. Although the SWC is being currently executed in those new-build construction projects only, it may likewise be applied to other projects within the wide spectrum of facilities management sector and large-scale building repair/maintenance services in both Hong Kong and overseas. Therefore, the contribution from this paper could be extended to the discipline of facilities management as well.

scholarly journals Safe Working Cycle: Is It a Panacea to Combat Construction Site Safety Accidents in Hong Kong?

2022 ◽  
Vol 14 (2) ◽  
pp. 894
Author(s):  
Daniel W. M. Chan ◽  
Douglas O. Aghimien
Keyword(s):  
Hong Kong ◽  
Construction Industry ◽  
Construction Projects ◽  
Rank Order ◽  
Research Work ◽  
Future Research ◽  
Chi Square ◽  
Working Cycle ◽  
Safety Initiative ◽  
Safe Working

In Hong Kong, the accident statistics of the construction industry is still comparatively higher than other industries. However, accident rates within the industry have significantly decreased, starting from the implementation of diverse safety initiatives, including the Safe Working Cycle (SWC). In this study, a post-positivist philosophical stance was adopted, and a questionnaire survey was launched to gather empirical data on the application of SWC in construction projects, the effectiveness of the safety initiative, and the benefits thereof. The data gathered from 197 construction participants were analysed using descriptive statistics, mean score, Mann–Whitney U-Test, Kendall’s concordance analysis, Chi-square value, Spearman rank-order correlation test and exploratory factor analysis. The findings revealed significant adoption of SWC in the Hong Kong construction industry. Furthermore, daily, weekly, and monthly inspections and supervisions and safety committee meetings are effective items of this safety initiative. The benefits of adopting SWC can be grouped into the safety of frontline workers and increase in the organisation’s safety commitment and reputation. This study has created an excellent theoretical platform for future research work on the usefulness of the SWC in the construction industry at large.

Quantitative analysis of the impact of craft worker availability on construction project safety performance

2016 ◽  
Vol 16 (3) ◽  
pp. 307-322 ◽  
Author(s):  
Hossein Karimi ◽  
Timothy R.B. Taylor ◽  
Paul M. Goodrum ◽  
Cidambi Srinivasan
Keyword(s):  
Regression Analysis ◽  
Poisson Regression ◽  
Construction Projects ◽  
Construction Project ◽  
Safety Performance ◽  
Content Type ◽  
Poisson Regression Analysis ◽  
Incident Cases ◽  
The Impact ◽  
Craft Worker

Purpose This paper aims to quantify the impact of craft worker shortage on construction project safety performance. Design/methodology/approach A database of 50 North American construction projects completed between 2001 and 2014 was compiled by taking information from a research project survey and the Construction Industry Institute Benchmarking and Metrics Database. The t-test and Mann-Whitney test were used to determine whether there was a significant difference in construction project safety performance on projects with craft worker recruiting difficulty. Poisson regression analysis was then used to examine the relationship between craft worker recruiting difficulty and Occupational Safety and Health Administration Total Number of Recordable Incident Cases per 200,000 Actual Direct Work Hours (TRIR) on construction projects. Findings The result showed that the TRIR distribution of a group of projects that reported craft worker recruiting difficulty tended to be higher than the TRIR distribution of a group of projects with no craft worker recruiting difficulty (p-value = 0.004). Moreover, the average TRIR of the projects that reported craft worker recruiting difficulty was more than two times the average TRIR of projects that experienced no craft recruiting difficulty (p-value = 0.035). Furthermore, the Poisson regression analysis demonstrated that there was a positive exponential relationship between craft worker recruiting difficulty and TRIR in construction projects (p-value = 0.004). Research limitations/implications The projects used to construct the database are heavily weighted towards industrial construction. Practical implications There have been significant long-term gains in construction safety within the USA. However, if recent craft shortages continue, the quantitative analyses presented herein indicate a strong possibility that more safety incidents will occur unless the shortages are reversed. Innovative construction means and methods should be developed and adopted to work in a safe manner with a less qualified workforce. Originality/value The Poisson regression model is the first model that quantifiably links project craft worker availability to construction project safety performance.

Tight budget constraints and the absence of strategic planning

Facilities ◽  
2016 ◽  
Vol 34 (7/8) ◽  
pp. 380-393 ◽  
Author(s):  
Huiying Hou ◽  
Daniel C.W. Ho ◽  
Jacky K.H. Chung ◽  
Kelwin K.W. Wong
Keyword(s):  
Hong Kong ◽  
Strategic Planning ◽  
Qualitative Data ◽  
Service Providers ◽  
Facilities Management ◽  
Budget Constraints ◽  
Group Discussions ◽  
Service Outsourcing ◽  
Content Type ◽  
Coding Method

Purpose This paper aims to identify the factors that affect facilities management (FM) service outsourcing. Design/methodology/approach Five focus group discussions (FGDs) were conducted for this study. A total of 25 professional FM managers were invited to participate in the FGDs. The qualitative data collected from the FGDs were analysed with the coding method. Findings FM managers commonly regard that tight budget constraints and the absence of strategic planning are two important factors that affect FM service outsourcing. Tight budget constraints reflect that clients control their service providers by constraining budgets, which creates a series of inefficiencies in the outsourcing process and thus lead to adverse outsourcing relationships. A series of strategies are recommended to deal with the challenges posed by budget constraints and the lack strategic planning. Research limitations/implications Twenty-five Hong Kong-based FM managers were interviewed for this study. The empirical data collected mainly reflects FM service outsourcing in Hong Kong. It is important to test the findings with a bigger group of FM managers from other regions. Originality/value The managerial significance of FM service outsourcing has not yet been valued in practice. This study draws academic attention to FM service outsourcing practice and provides practical opinions from FM managers. Also, this study adopts the FGD method in data collection, which extracts to a maximum degree of authentic opinions from practitioners.

Causes of delays in construction industry and comparative delay analysis techniques with SCL protocol

2018 ◽  
Vol 25 (4) ◽  
pp. 497-533 ◽  
Author(s):  
Parvaneh Shahsavand ◽  
Akbar Marefat ◽  
Majid Parchamijalal
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Delay Analysis ◽  
Relative Importance ◽  
Project Schedule ◽  
Content Type ◽  
Advantages And Disadvantages ◽  
Construction Law ◽  
Delay Claims ◽  
Causes Of Delays

Purpose The purpose of this paper is to reveal the main causes of delays in the projects are from the client (relative importance index (RII)=0.716), labor and equipment (RII=0.701) and contractor (RII=0.698). Hence determining the contractual responsibility of delay is the most likely source of dispute in construction projects and many techniques have been used in the courts to demonstrate the criticalities of a delay event on the project schedule. Therefore, authors try to investigate all process-based techniques of delay claims and evaluated and conformed them with principles by Society of Construction Law (SCL) protocol and Association for the Advancement of Cost Engineering International (AACEI) in order to choose the best techniques based on the specific circumstances of each project. Design/methodology/approach This section is divided into two distinct parts: refers to the methods used to assess the perceptions of clients, consultants, and contractors on the relative importance of causes of delay in construction industry; and refers to advantages and disadvantages of various techniques used to analyze delays and their conform with SCL protocol. A questionnaire was developed to assess the perceptions of clients, consultants, and contractors on the relative importance of causes of delay in Iranian construction industry. The respondents were asked to indicate their response category on 78 well-recognized construction delay factors identified by authors. Findings In total, 78 causes of delay were identified through research. The identified causes are combined into seven groups. The field survey included 58 contractors, 55 consultants, and 62 client. Data collected were analyzed by RII and Statistical Package for Social Sciences (SPSS). The authors identified main causes of delay and ten most important causes, according to Table AII, from the perspective of three major groups of participants (clients, consultants and contractors). The ranking of categories of causes of delay, according to Table I, were: client-related causes (RII=0.716); labor and equipment category causes (RII=0.701); contractor-related causes (RII=0.698); material-related causes (RII=0.690); design-related causes (RII=0.666); external causes (RII=0.662); and consultant-related causes (RII=0.662). But according to the discussions and given that determining the contractual responsibility of delay is the most likely source of dispute in construction industry and many techniques have been used in the courts to demonstrate the criticalities of a delay event on the project schedule. Originality/value All process-based techniques of delay analysis have been present in this paper and categorized in 11 groups. In order to understand the advantages and disadvantages of them by clients, contractor and consultant, a thorough review conducted to reveal the nature of techniques. In the next step, given that selecting the most appropriate technique based on constraints and specific conditions of each project is one of the most important steps to carry out a successful delay analysis. The authors conformed, all process-based techniques of delay analysis, by SCL protocol and AACEI principles. Finally, the result of this match was brought in order to choose the best technique based on the specific circumstances of each project.

A scheduling methodology for dealing with uncertainty in construction projects

2011 ◽  
Vol 28 (8) ◽  
pp. 1064-1078 ◽  
Author(s):  
Maria Elena Bruni ◽  
Patrizia Beraldi ◽  
Francesca Guerriero ◽  
Erika Pinto
Keyword(s):  
Construction Projects ◽  
Quantitative Methodology ◽  
Project Schedule ◽  
Deterministic Method ◽  
Content Type ◽  
Probabilistic Information ◽  
Analysis Process ◽  
On Line ◽  
Schedule Reliability ◽  
The Impact

PurposeThe purpose of this paper is to address the problem of scheduling under uncertainty in construction projects. The existing methods for determining a project schedule are based on assumption of complete knowledge of project parameters; but in reality there is uncertainty in construction projects, deriving from a multitude of context‐dependent sources and often provided as outcome of a risk analysis process. Thus, classical deterministic analysis might provide a schedule which is not sufficiently protected against possible disruptions.Design/methodology/approachA quantitative methodology is developed for planning construction projects under uncertainty aimed at determining a reliable resource feasible project schedule by taking into account the available probabilistic information to produce solutions that are less sensitive to perturbations that occur on line. The methodology relies on a computer‐supported system that allows to identify, analyze and quantify the schedule reliability and the impact of possible disruptions on the duration of the project.FindingsIt is found that the proposed methodology can exploit more information about the uncertain parameters than the commonly‐used deterministic method, and it provides an improved understanding of the schedule reliability in presence of uncertainty. The schedule generated with a classical deterministic method sets a completely unrealistic planned project delivery date of about 1,250 days, with a probability around 50 per cent to be exceeded. This behavior can be very unsatisfactory for construction projects for which high penalties are usually associated to heavy due date violations.Originality/valueThis paper presents an approach for robust scheduling of construction project problem under uncertainty. We provide a tool able to support managers in developing a workable and realistic project schedule to be used as a guideline for project control and monitoring.

scholarly journals An empirical study of the complexity of requirements management in construction projects

2014 ◽  
Vol 21 (5) ◽  
pp. 505-531 ◽  
Author(s):  
Abdou Karim Jallow ◽  
Peter Demian ◽  
Andrew N. Baldwin ◽  
Chimay Anumba
Keyword(s):  
Construction Projects ◽  
Impact Analysis ◽  
Current Approach ◽  
Facilities Management ◽  
Content Type ◽  
Management Framework ◽  
Engineering Construction ◽  
Depth Study ◽  
Major Factors

Purpose – The purpose of this paper is to investigate in-depth the current approach of managing client requirements in construction and to highlight the significant factors, which contribute to the complexity of managing the requirements in order to define a better approach. Design/methodology/approach – A case study of a leading international global built asset and engineering consultancy organization was conducted over two years. The case study was conducted principally using semi-participant observations supplemented with other qualitative data collection methods (i.e. interviews, questionnaires and document analysis). Thematic analysis was used to analyze the data. Findings – The results highlight major factors associated with the complexity of managing client requirements information, which include: mechanisms for documentation, storage and access, distribution of requirements information between stakeholders and across lifecycle phases of a project, traceability management and the provision of effective change management incorporating dependency checking and impact analysis. Research limitations/implications – The main limitation of the research is the use of an in-depth study of a single organization, which applied the same project management method across all the projects they managed. Further work is planned to develop the proposed framework fully, and develop a software platform to operationalize and evaluate its industrial applicability with construction projects. Practical implications – The implications of this research is that a better approach to managing requirements information is needed, which will facilitate the design, construction and operations of buildings within budget and time. An integrated framework and an associated tool are suggested to implement the approach. Originality/value – This study identifies major research gaps and problems in the architecture, engineering, construction and facilities management industry; proposes and presents Electronic Requirements Information Management framework to facilitate lifecycle management of the requirements.

Construction project productivity evaluation framework with expanded system boundaries

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wenting Zhan ◽  
Wei Pan ◽  
Le Chen
Keyword(s):  
Hong Kong ◽  
Case Studies ◽  
Construction Industry ◽  
Construction Projects ◽  
Construction Project ◽  
Real Life ◽  
Evaluation Framework ◽  
Two Stage ◽  
System Boundaries ◽  
Content Type

PurposeWhile the investment in construction projects has increased over the past few decades, low construction project productivity (CPP) appeared to be persistent, thereby reflecting an “investment-in-failure” paradox between the investment and CPP. Hence, this paper aims to develop a systematic and holistic CPP evaluation framework to explain the apparent paradox in the construction industry.Design/methodology/approachThe paper first reviews the literature about the theories of system, production, principal–agent and project success evaluation to re-conceptualise the CPP and proposes a two-stage CPP evaluation framework. The framework is subsequently explored through a sequential qualitative mixed-methods design within the context of the Hong Kong construction industry by combining 32 semi-structured interviews with senior industry experts and exploratory case studies, with three real-life construction projects.FindingsThe paper identifies three system boundaries for CPP evaluation, that is, parameter, timeframe and stakeholder, and develops a two-stage CPP evaluation framework to indicate site efficiency and utilisation effectiveness, thereby accessing the productivity of both the construction and post-construction stages. The “investment-in-failure” paradox associated with current CPP evaluation approaches is primarily attributed to the narrowly defined CPP boundaries.Research limitations/implicationsThe qualitative exploration of the evaluation framework only focusses on the Hong Kong construction industry. Further case studies within other urban contexts could be used to improve the generalisability of the findings. Quantitative research is also necessary to advance theoretical development of the two-stage CPP evaluation.Practical implicationsThe systemic CPP conceptualisation and the two-stage CPP evaluation framework support the systems thinking of industry stakeholders and enable them to formulate holistic strategies for long-term CPP enhancement.Originality/valueThe research demonstrates the needs to expand the system boundaries of CPP to reflect its systemic value and to shift the paradigm of CPP evaluation from being output-orientated and quantity-focussed to being outcome-orientated and value-focussed.

Safety performance prediction and modification strategies for construction projects via machine learning techniques

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hamidreza Abbasianjahromi ◽  
Mehdi Aghakarimi
Keyword(s):  
Machine Learning ◽  
Decision Tree ◽  
Performance Prediction ◽  
Construction Projects ◽  
Safety Performance ◽  
Performance Criteria ◽  
Second Phase ◽  
Decision Tree Algorithm ◽  
Tree Algorithm ◽  
Content Type

PurposeUnsafe behavior accounts for a major part of high accident rates in construction projects. The awareness of unsafe circumstances can help modify unsafe behaviors. To improve awareness in project teams, the present study proposes a framework for predicting safety performance before the implementation of projects.Design/methodology/approachThe machine learning approach was adopted in this work. The proposed framework consists of two major phases: (1) data collection and (2) model development. The first phase involved several steps, including the identification of safety performance criteria, using a questionnaire to collect data, and converting the data into useful information. The second phase, on the other hand, included the use of the decision tree algorithm coupled with the k-Nearest Neighbors algorithm as the predictive tool along with the proposing modification strategies.FindingsA total of nine safety performance criteria were identified. The results showed that safety employees, training, rule adherence and management commitment were key criteria for safety performance prediction. It was also found that the decision tree algorithm is capable of predicting safety performance.Originality/valueThe main novelty of the present study is developing an integrated model to propose strategies for the safety enhancement of projects in the case of incorrect predictions.

Dining in the sharing economy: a comparison of private social dining and restaurants

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Pearl M.C. Lin
Keyword(s):  
Hong Kong ◽  
Online Survey ◽  
Sharing Economy ◽  
Research Focus ◽  
Content Type ◽  
Mediating Role ◽  
Experiential Consumption ◽  
Depth Interviews ◽  
Practical Implications

Purpose In view of the intense competition between businesses in the sharing economy and the conventional hospitality industry, this study aims to compare consumers’ private social dining and restaurant dining experiences. Design/methodology/approach In-depth interviews with 29 private social diners were conducted to yield 10 dining experiential domains, which were then validated using online survey data from 840 diners across four sample groups – local (Hong Kong) private social diners, local (Hong Kong) restaurant diners, overseas private social diners and overseas restaurant diners – to empirically examine a mechanism through which the dining experience influences diners’ psychological and behavioral responses. Findings The significant differences emerged among the four sample groups in their evaluations of dining experiences. The mediating role of memorability appeared weaker in overseas settings than in local settings. Practical implications The findings suggest restaurateurs be creative and open-minded in designing dining experiences that go beyond food-related satisfaction. Destination marketers should also find the findings insightful because they can diversify their catering offerings by differentiating private social dining with conventional restaurants. Originality/value The study presents a novel angle on experiential consumption in the sharing economy to focus on food-sharing activities, which is thought to complement the currently skewed research focus in the sharing economy. A theoretically driven mechanism was also validated to explain the experiential differences between conventional restaurants and private social dining.

scholarly journals Integrating value management into sustainable construction projects in Hong Kong

2018 ◽  
Vol 25 (11) ◽  
pp. 1475-1500 ◽  
Author(s):  
Ann Tit Wan Yu ◽  
Arshad Ali Javed ◽  
Tsun Ip Lam ◽  
Geoffrey Qiping Shen ◽  
Ming Sun
Keyword(s):  
Hong Kong ◽  
Construction Projects ◽  
Construction And Demolition Waste ◽  
Sustainable Construction ◽  
Value Management ◽  
Extensive Literature ◽  
Structured Interviews ◽  
Additional Time ◽  
Demolition Waste ◽  
Content Type

Purpose Integrating sustainability into the value management (VM) process can provide a strategic platform for promoting and incorporating sustainable design and development during the lifespans of construction projects. The purpose of this paper is to investigate the strengths, weaknesses, opportunities and threats (SWOT) for integrating sustainability into the VM process in Hong Kong. Design/methodology/approach Following an extensive literature review, 45 attributes were identified and grouped into strength, weakness, opportunity and threat elements. A questionnaire survey based on these groupings was supported by semi-structured interviews with public sector clients, value managers and VM facilitators. They shared their experience and views on how to integrate sustainability into the VM exercises. Findings The triangulated results of the survey and interviews are presented in this paper. The ranking of the SWOT analysis results indicate that VM does provide opportunities for multidisciplinary professionals and stakeholders to focus on issues relating to society and the environment, which is considered a main strength. The major weakness of integration is the lack of well-trained staff and low levels of VM participant expertise in relation to the sustainable construction issue. Research limitations/implications Current practices generally neglect integration of sustainability into the VM process due to cost and time constraints. There are ample strengths and opportunities recommended by this study for integrating sustainability into the VM process which are beneficial for the clients and contractors for achieving value for money and meeting sustainability targets. Practical implications There are immense opportunities for integrating sustainability into the VM process, including encouragement of the reduction, reuse and recycling of construction and demolition waste. However, threats presented by integration include the additional time and costs required for achieving sustainability targets. Originality/value Findings and recommendations provided in this paper should be helpful to decision makers including clients and VM facilitators for the successful integration of the sustainability concept into the VM process.

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