FIGURE I FOUR PRIMARY CAUSES OF CONSTRUCTION WORKER FATALITIES
FIGURE II EQUIPMENT MOVEMENT DIRECTION WHEN ACCIDENT OCCURS (N=594)
FIGURE III MAIN STEPS OF THE DEVELOPED HMM-BASED TRAJECTORYPREDICTION METHOD
FIGURE IV KEY ELEMENTS OF HMM PREDICTION MODEL
FIGURE V INPUT-PROCESS-OUTPUT DIAGRAM OF HMM TRAINING STAGE
FIGURE VI INPUT-PROCESS-OUTPUT DIAGRAM OF HMM PREDICTION STAGE
FIGURE VII VARIATION OF ANGULAR RISK FACTOR (α) NEAR THE HAZARD ZONE
FIGURE VIII LINEAR RISK FACTOR AND ADJUSTMENT OF PREDICTION
FIGURE IX HIGH-LEVEL FLOWCHART OF PCS2 MOBILE APPLICATION
FIGURE X SCREENSHOTS OF THE PCS2 MOBILE APPLICATION LAYOUTS
FIGURE XI FUNCTIONS USED FOR ALERT USERS FROM THEIR LOCATION DATA
FIGURE XII INITIAL INPUTS OF PCS2 FOR THE FIELD EXPERIMENT
FIGURE XIII EXPERIMENT SETUP WITH THE FORKLIFT AS A SITE HAZARD
FIGURE XIV COLLECTED USER TRAJECTORY IN THE VICINITY OF THE FORKLIFT
FIGURE XV USER APPROACHING A HAZARD ZONE DURING THE FIELD EXPERIMENT
TABLE I RESULTS OF PCS2 FIELD TEST
TABLE II technological breakthroughs, the real value of mobile RECALL, PRECISION, AND ACCURACY OF THE FIELD TEST
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