HEALTH and SAFETY RISK MANAGEMENT in BUILDING CONSTRUCTION SITES in TANZANIA: the Practice of Risk Assessment, Communication and Control
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THESIS FOR THE DEGREE OF LICENTIATE OF ENGINEERING HEALTH AND SAFETY RISK MANAGEMENT IN BUILDING CONSTRUCTION SITES IN TANZANIA: The Practice of Risk Assessment, Communication and Control SARAH PHOYA Department of Architecture CHALMERS UNIVERSITY OF TECHNOLOGY Gothenburg, Sweden 2012 HEALTH AND SAFETY RISK MANAGEMENT IN BUILDING CONSTRUCTION SITES IN TANZANIA: The Practice of Risk Assessment, Communication and Control SARAH PHOYA © SARAH PHOYA, 2012. Department of Architecture CHALMERS UNIVERSITY OF TECHNOLOGY SE-412 96 Gothenburg Sweden Telephone +46(0)31-772 1000 Cover: The cover photo shows a typical working environment of the workers in construction sites. Photo taken by the Author Chalmers Reproservice Gothenburg, Sweden 2012 HEALTH AND SAFETY RISK MANAGEMENT ON BUILDING CONSTUCTION SITES IN TANZANIA: The Practice of Risk Assessment, Communication and Control SARAH PHOYA Department of Architecture Chalmers University of Technology ABSTRACT The construction industry is an important part of the economy in many countries and is often seen as a driver of economic growth especially in developing countries. Owing to its relatively labour intensive nature, construction works provide opportunities for employment for a wide range of people skilled, semi-skilled and unskilled. Despite its importance, construction industries are considered risky with frequent and high accidents rates and ill- health problems to workers, practitioners and end users. However, knowledge on how health and safety risks are managed on Tanzanian construction sites is limited. This study therefore, aims to find out the current practice of health and safety risk assessment, risk communication and risk control in Tanzanian context. In pursuing this objective, the case study strategy was adopted whereby two construction sites in Dar es Salaam were selected through convenience sampling. The findings of the study show that all responsibility on risk management is with the contractor, and it is carried out only during construction phase. The study also show that no systematic method is used for risk assessment, but rather risks are assessed based on individual judgement guided by experience, educational background and existing regulations. Meanwhile, risk information is communicated through toolbox meetings, informal discussions, and controlled by using personal protective equipment (PPE). The study also reveals that, the regulatory system, the organisation/company system, the individual system and the work environment have impact on health and safety risk management. Further findings of this study show that, site location, site configuration, procurement system and complexity of design are the main challenges hampering health and safety risk management. The study recommends the necessity of incorporating of key project stakeholders such as client and design team and other consultants in managing health and safety risk. Key Words Health and safety risk, Risk Management, Risk Communication, Risk control, Construction Sites, Practice, and Process. i ACKNOWLEDGEMENT My Licentiate has been written within the project; Capacity Building for Sustainable Land Development, Environmental Management and Poverty Alleviation. The project is financed by Swedish International Development Agency (SIDA) according to an agreement on Research Corporation between Sweden and Ardhi University in Tanzania. Within this agreement I registered for Licentiate Degree at Chalmers University of Technology. I will then continue with my PhD work at Ardhi University. I would like to express my gratitude to SIDA for financial support. I am also grateful to the Swedish project coordinator Prof. Inga Britt Werner from The Royal Institute of Technology and Tanzanian Coordinator, Prof. Mengiseny Kaseva for effectively coordinating all the activities supporting my postgraduate studies. I am grateful for the programme coordinators at the two universities for facilitating all practical matters with regard to travel, my stay in Gothenburg and attending compulsory courses in Sweden, Ghana and Tanzania. I particularly thank Inger Lise Syversen, Wilbard Kombe, Maria Nyström, Marie Strid, Hidaya Kayuza and Lars-Göran Bergqvist for ensuring the smooth progress of the research programme. I extend my sincere gratitude to my supervisors; Krystyna Pietrzyk, and Harriet Eliufoo for their tireless guidance and support throughout all the research stages to the final production of the thesis. Special thanks go to Geraldine Kikwasi and Sophia Lukwale for reading and editing my work, and to Ndumbaro, Shio and Makoba for their cooperation during my studies. I also extend my appreciation to Estim Construction Company and Nordic Construction Company for Company for allowing me to take them as my case study, as well as to the site managers at Vijana and Kaluta sites, the workers and safety committee members at construction sites for their responses and priceless cooperation. I also appreciate the invaluable work done by my research assistants Hermence Selice and Rayson Kinyawa during the actual fieldwork. I am grateful to my fellow PhD students at Chalmers: Franklin Mwango, Heidi Norrström, Isabella Asamba, Lisa Åhlström, Msami Joel, Nils Björling, Daniel Mbisso and Stefan Lundin; Daniel Msangi, Dawah Mushi and Stalin Mkumbo. Last, but not least, I thank my husband Frumence and my daughters Irene and Lorine for their love and patience during my study. ii LIST OF ACRONYMS AQRB - Architect and Quantity Surveyor Registration Board AQSRA - Architects and Quantity Surveyors Registration BOT - Build Operate and Transfer CRB - Contractors Registration Board EALRA - Employment and Labour Relations Act HEEPO - Human, Equipment, Environment, Product and Organization HSE - The Health and Safety Executive ILO - International Labour Organisation MCC - Millennium Challenge Corporation MKUKUTA - National Strategy for Growth and Reduction of Poverty NOHSC - National Code of Practice NCC - National Construction Council OSHA - Occupational Safety and Health Agency PPE - Personal Protective Equipment PPRA - Public Procurement Regulatory Authority SSOW - Safe System of Work QRA - Quantitative Risk assessment WHO - World Health Organisation iii TABLE OF CONTENT ABSTRACT ............................................................................................................................ i ACKNOWLEDGEMENT ..................................................................................................... ii LIST OF ACRONYMS... ..................................................................................................... iii 1 BACKGROUND INFORMATION ................................................................................ 1 1.1 Statement of Problem ................................................................................................... 1 1.2 Research Issue .............................................................................................................. 2 1.3 Main Objective and Research Questions ..................................................................... 3 1.4 Relevance and Motivation for the Study ...................................................................... 3 1.5 Definitions of the Key Terms ....................................................................................... 5 1.6 Scope and Limitation of the Research .......................................................................... 8 1.7 Outline of the Report .................................................................................................... 9 1.8 Chapter Summary ......................................................................................................... 9 2 THEORETICAL AND CONCEPTUAL FRAMEWORK ......................................... 10 2.1 System Thinking ........................................................................................................ 10 2.2 Risk Theories .............................................................................................................. 13 2.3 Risk Management System .......................................................................................... 17 2.4 Research Conceptual Framework ............................................................................... 26 2.5 Chapter Summary ....................................................................................................... 28 3 HEALTH AND SAFETY SITUATIONS ON CONSTRUCTION SITES ................ 29 3.1 Global Situation of Health and Safety Hazard on Construction Sites ........................ 29 3.2 Sources of Accidents and Ill-health Problems on Construction Sites ........................ 30 3.3 Types of Health and Safety Hazards on Construction Sites ....................................... 31 3.4 Chapter Summary ....................................................................................................... 36 4 TANZANIA CONSTRUCTION INDUSTRY, HEALTH AND SAFETY LEGISLATIVE AND RESPONSIBILITIES. ................................................................. 37 4.1 Location and Environmental Condition of Tanzania ................................................. 37 4.2 Tanzanian Construction Industry and Economic Development ................................. 38 4.3 Structure and Characteristics of Construction Services in Tanzania ......................... 39 4.4 Construction Process and the Key Participants in Tanzania ...................................... 41 4.6 Institutional and Legal Framework for Health and Safety in Tanzania ....................