A Study on Risk Assessment Process of Hazards in Construction Sites
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A STUDY ON RISK ASSESSMENT PROCESS OF
HAZARDS IN CONSTRUCTION SITES
PREVINDRAN A/L KRISHNAN
EXECUTIVE DIPLOMA IN OCCUPATIONAL HEALTH & SAFETY
INSTITUTE PROFESSIONAL DEVELOPMENT
OPEN UNIVERSITY MALAYSIA
2013
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ACKNOWLEDGEMENT
First and foremost, I would lie to take this opportunity to thank everyone for guiding and helping me in the completion of this dissertation.
I would like to extend my deepest gratitude and appreciation to my HSE manager for his continuous guidance, support and valuable advices throughout the period of this Project Paper.
I would also like to thank to all the respondents who participated in the interview sessions and questionnaire survey and also to those who were involved directly or indirectly in the completion of this project.
Other than that, I would like to convey my appreciation to all my OUM & NIOSH lecturers and trainers who guided and supported me in completing this project paper.
Most importantly, I would like to show my gratitude to my parents who really helped me and showed moral support not only during my classes but guided me whenever I needed them. Last but not least, not forgetting to thank all my friends and course mates especially
Thank you all,
Previndran a/l Krishnan
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Authorization Statement
With this I declare that the report as title A study on Risk Assessment Process of Hazards Of Construction Sites in Vale Mineral Malaysia Project by [Previndran a/l Krishnan ] of matrix number [ IEDOSH - 121956 ] is my own work except the summary that I have explained the source.
By
Previndran a/l Krishnan
2013
ABSTRACT
Recently the issue of occupational safety and health have attract the attention of many parties in the construction industry. The number of accident occurrence in construction site have been regard as high if compared to other industries. One of the main cause of accident in many construction sites is hazards, therefore an effective risk assessment process of hazards has the potential to overcome the problem. This study is carried out to determine the process of risk assessment of hazards currently applied in construction sites in Malaysia. The study also aim to proposed a guideline that can be used by the construction personnel in order to improve the implementation of risk assessment of hazards. A framework of the current applied risk assessment process of hazards have been developed from the combination of the result of interview session carried out by the author with ten construction companies. The study found that the major risk assessment process of hazards in construction sites listed were approved by the respondent as ‘high application’ and ‘medium application’. Based on the study analysis, a guideline have been proposed and it is expected by this guideline, construction personnel will be able to implement the risk assessment process of hazards effectively in construction sites in Malaysia.
TABLE OF CONTENTS
CHAPTER TITLE PAGE
THESIS TITLE i ACKNOWLEDGEMENT ii
AUTHORIZATION STATEMENT iii
ABSTRACT iv TABLE OF CONTENTS v
1 INTRODUCTION 1
1.1 | Introduction | 1 |
1.2 | Problem Statement | 5 |
1.3 | Aim and Objectives of the Study | 6 |
1.4 | Scope of Research | 7 |
1.5 | Research Methodology | 7 |
2 LITERATURE REVIEW 9
2.1 Risk Assessment Definitions 9
2.1.1 | Purpose of Risk Assessment | 11 |
2.1.2 | Risk Assessment Requirements | 12 |
2.1.3 | Planning Assessment | 13 |
2.1.3.1 Key Roles and Responsibilities | 14 | |
2.1.3.2 Strategy and Planning | 15 | |
2.2 | Risk Assessment Process | 17 |
2.3 | Risk Assessment Process for Hazard in | |
Construction Site | 22 | |
2.3.1 | Step 1 : Analyzing Work Activities | 22 |
2.3.2 | Step 2 : Hazard Identification | 23 |
2.3.2.1 Methods of Identifying Hazard and | ||
Hazardous Situations | 23 | |
2.3.3 | Step 3 : Estimating Risk | 25 |
2.3.3.1 The Risk Matrix | 26 | |
2.3.4 | Step 4 : Evaluating Risks | 29 |
2.3.4.1 Decision Making as Part of Risk | ||
Assessment Process 29 | ||
2.3.5 | Step 5 : Planning Control Options | 30 |
2.3.5.1 Hazard Control | 31 | |
2.3.5.2 Safe Systems of Work | 33 55 | |
2.4 | Hazards in Construction Site | 34 |
2.4.1 Categories of Hazard | 35 | |
2.4.1.1 Physical Hazard | 35 | |
2.4.1.2 Electrical Hazard | 36 | |
2.4.1.3 Explosive Hazard | 36 | |
2.4.1.4 Biological Hazard | 37 | |
2.4.1.5 Chemical Hazard | 37 | |
2.4.1.6 Mechanical Hazard | 38 | |
2.4.1.7 Ergonomic Hazard | 39 | |
2.4.2 Types of Hazards in Construction Site | 39 | |
2.4.2.1 Physical Injury Hazard | 40 |
2.4.2.2 Health Hazard 43
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