Özdemir, M (2015) A fuzzy structural equation model to analyze relationships between determinants of safety performance in construction sites: Development of a safety performance index assessment tool. PhD thesis, Middle East Technical University, Turkey.
Abstract
The principal aim of this study is to examine the relationships between determinants of safety performance in construction sites. In this study, 168 observable variables and 16 latent dimensions affecting safety performance of construction sites were collected together from detailed literature review, expert opinions and face-to-face interviews with 15 construction safety professionals. Relationships between observed variables and latent dimensions of safety performance of construction sites were studied and a multidimensional safety performance model was proposed. Structural equation modeling (SEM) analysis and testing results showed that, all of the research hypotheses were supported and the proposed multidimensional safety performance model was validated. After validation of the proposed multidimensional safety performance model, the formulation of the safety performance index of construction sites was developed. Case studies were conducted at 11 international construction sites and the results of site safety performance indices were benchmarked. A short (simple) safety performance model was developed as an alternative to the full model (proposed model) to assess safety performance of construction sites. Results showed that short model predicts the safety performance with an acceptable accuracy and requires less time to complete. Finally, a safety performance index assessment software tool for construction sites was proposed by developing a Site Safety Performance (SSP) software and an application for mobile devices based on the empirically validated theoretical model. Top 30 of the observed variables most affecting the safety performance in construction sites were discussed and recommendations to construction safety professionals were provided to improve the safety performance of construction sites.
| Item Type: | Thesis (Doctoral) |
|---|---|
| Thesis advisor: | Birgönül, M T |
| Uncontrolled Keywords: | accuracy; case studies; construction safety; international construction; safety |
| Index terms: | case study, structural equation model, international construction, determinant, testing, dimension, interview, accuracy, structural equation modelling, construction site, literature review, face, validation, safety performance, construction safety |
| Subjects: | professional practice, psychology, strategic management, environmental health, statistical analysis, occupational health and safety management, professional development, health monitoring assessment and metrics, data analysis and analytics, work location, data collection methods, risk assessment |
| Topics: | Risk Management, Sustainability, Health and Safety, Engineering Principles, Organizational Design, Site Management, International Construction, Research Practice, Information Management |
| Descriptive scope: | 4 PCEA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here