Strategies for construction hazard recognition
controlled in dynamic construction projects
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| controlled in dynamic construction projects using interrupted time series regression analyses. Our field study with SAVES as the intervention indicated that the crews on average were able to only identify 46% of hazards prior to the introduction of the intervention, but were able to recognize 77% of hazards in the post-intervention phase. Similarly in the sites that the SMQM intervention were tested, the workers were only able to identify and communicate an average of 38% of hazards before the intervention was applied, but the new strategy caused a weighted overall level-change improvement in hazard recognition skill of 31% (p < 0.01). Therefore, at the end of the study, the workers recognized 69% of hazards For the HIT intervention, The results indicated that the crews were able to recognize and communicate only an average of 54% of hazards in the baseline phase, but were able to recognize 77% during the planning phase after using the intervention. An additional 6% of hazards were identified in the execution phase. Therefore, 82% of hazards were identified after introducing the HIT board. The primary contribution of this research is the development and the evaluation of highly effective hazard recognition programs to facilitate and stimulate improved safety performance in the construction industry. The results of this study make valuable contributions to the construction industry by proposing proven techniques for improved safety performance, if adopted. vii Table of Contents CHAPTER 1: INTRODUCTION ................................................................................................... OBSERVED PROBLEM. RESEARCH GOALS ..................................................................................................................... RESEARCH METHOD OVERVIEW ........................................................................................... Phase 1: Selection of Potential Hazard Recognition Strategies .................................................. Phase 2: Development of Hazard Recognition Programs and testing protocols ........................ Phase 3: Experimentation of designed Hazard recognition strategies with active work crew ... Phase 4: Data Analysis and Reporting ........................................................................................ DISSERTATION FORMAT .......................................................................................................... REFERENCE .................................................................................................................................. CHAPTER 2: EMERGING STRATEGIES FOR CONSTRUCTION SAFETY AND HEALTH HAZARD RECOGNITION. ABSTRACT .................................................................................................................................. INTRODUCTION ........................................................................................................................ LITERATURE REVIEW ............................................................................................................. Hazard identification and evaluation ........................................................................................ Accident causation and risk perception .................................................................................... Point of Departure ..................................................................................................................... Research Methods ..................................................................................................................... Phase 1: Exploratory Research Studies to identify Hazard Recognition Program Elements Phase 2: Shortlisting of potential hazard recognition program elements ............................ RESULTS AND DISCUSSIONS ................................................................................................. 25 Pre-job safety meeting quality measurement tool ................................................................. Augmented and interactive virtuality training environment ................................................. CONCLUSION ............................................................................................................................. REFERENCES ............................................................................................................................. CHAPTER 3: ENHANCING CONSTRUCTION HAZARD RECOGNITION WITH HIGH FIDELITY AUGMENTED VIRTUALITY ................................................................................. ABSTRACT .................................................................................................................................. INTRODUCTION ........................................................................................................................ LITERATURE REVIEW ............................................................................................................. Current hazard-signal detection methods .................................................................................. Safety training programs in construction .................................................................................. Application of D game environments for construction safety education ............................... 44 viii CONTRIBUTIONS TO THE BODY OF KNOWLEDGE .......................................................... RESEARCH METHODS ............................................................................................................. Phase 1: Development of SAVES. Development process ............................................................................................................ Integrated concepts of learning ............................................................................................. Phase II – Empirical field testing using the multiple baseline design ...................................... Selection of project cases ...................................................................................................... Method for assessing hazard recognition performance ........................................................ Testing protocol and multiple baseline testing analysis ........................................................... Validation using construction case images ............................................................................... RESULTS AND DISCUSSIONS ................................................................................................. Case 1: Maintenance and Construction in oil and gas facility .................................................. Case 1 analysis results .............................................................................................................. Case 2 description Maintenance and general construction in fluff pulp processing facility ... Case 2 analysis results .............................................................................................................. Potential limitations and methods used to improve validity and reliability. Conclusions and recommendations. REFERENCES ............................................................................................................................. CHAPTER 4: ENHANCING CONSTRUCTION HAZARD RECOGNITION AND COMMUNICATION WITH ENERGY-BASED COGNITIVE MNEMONICS AND A SAFETY MEETING MATURITY MODEL A MULTIPLE BASELINE STUDY ................................... ABSTRACT .................................................................................................................................. MOTIVATION AND BACKGROUND ...................................................................................... OBJECTIVES AND CONTRIBUTIONS .................................................................................... RESEARCH METHODS ............................................................................................................. Phase 1 Development of the SMQM maturity model ............................................................. Model structure ..................................................................................................................... Model content ....................................................................................................................... Cognitive retrieval mnemonics and collaborative learning ...................................................... Phase II – Hypothesis testing .................................................................................................... Multiple baseline testing protocol and analysis .................................................................... Independent validation using image analysis ........................................................................... RESULTS ..................................................................................................................................... Case 1 description Modular construction project .................................................................... Case 1 results and analysis ........................................................................................................ 97 ix Case 2 description Construction of a power plant project ......................................................... Case 2 results and analysis ...................................................................................................... CONCLUSIONS. APPENDIX ................................................................................................................................. REFERENCES ........................................................................................................................... CHAPTER 5: EXPERIMENTAL FIELD TESTING OF A REAL-TIME CONSTRUCTION HAZARD IDENTIFICATION AND TRANSMISSION TECHNIQUE ................................... ABSTRACT ................................................................................................................................ INTRODUCTION ...................................................................................................................... HAZARD RECOGNITION BACKGROUND .......................................................................... THEORETICAL AND PRACTICAL CONTRIBUTIONS ....................................................... RESEARCH METHODS ........................................................................................................... Phase I Development of the Hazard Identification and Transmission (HIT) board ............. Retrieval mnemonics for improved safety interaction, and cued hazard recognition ......... Proactive and Real-time hazard identification .................................................................... Design and implementation protocol of the HIT board ...................................................... Phase II – Empirical field testing ............................................................................................ Measuring hazard recognition and communication ................................................................ Multiple baseline testing protocol and analysis procedure ................................................. Independent validation using construction images ................................................................. RESULTS ................................................................................................................................... Case 1 description Major maintenance work at a food processing facility ........................... Case 1 results, analysis and discussions ................................................................................. Case 2 description Construction, renovation and retrofit in a manufacturing plant .............. Case 2 results, analysis and discussions ................................................................................. STUDY LIMITATIONS ............................................................................................................ CONCLUSIONS. REFERENCES ........................................................................................................................... CHAPTER 6: CONCLUSIONS AND RECOMMENDATIONS .............................................. INTRODUCTION ...................................................................................................................... CONTRIBUTIONS TO CONSTRUCTION HAZARD RECOGNITION THEORY AND PRACTICE ................................................................................................................................. METHODICAL CONTRIBUTIONS ......................................................................................... CONTRIBUTION TO STATISTICAL DATA HANDLING AND DETERMINATION OF EFFECT SIZE ............................................................................................................................. 165 x PRACTICAL CHALLENGES WITH IMPLEMENTING MBT FOR CONSTRUCTIO ......... RECOMMENDED FUTURE RESEARCH ............................................................................... REFERENCE .............................................................................................................................. APPENDIX ................................................................................................................................. 174 DATASET FROM CASE STUDIES AND SAMPLE CALUCLATIONS ............................... SYSTEM FOR AUGMENTED VIRTUALITY ENVIRONMENT SAFETY (SAVES) .......... Case 1: Maintenance and Construction in oil and gas facility ................................................ Case 2: Maintenance and general construction in fluff pulp processing facility .................... SAFETY MEETING QUALITY MEASUREMENT (SMQM) TOOL ..................................... Case 1: Modular construction project ..................................................................................... Case 2: Construction of a power plant project ........................................................................ HAZARD IDENTIFICATION AND TRANSMISSION (HIT) BOARD ................................. Case 1 description Major maintenance work at a food processing facility ........................... Case 2: Construction, renovation and retrofit in a manufacturing plant ................................. SAMPLE CALCULATION USING SMQM CASE DATA (Crew 1: Structural Crew. INTEGRATED REFERENCES ................................................................................................. 182 Download 2.75 Mb. Share with your friends:
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