What are the Fatal four events that cause three out of five construction worker deaths?

The "Fatal Four" events in construction that account for more than half of worker fatalities are falls, being struck by objects, electrocutions, and being caught in or between objects. Falls are the leading cause of death, often occurring from heights. Struck-by incidents involve workers being hit by tools, machinery, or materials. Electrocutions and caught-in/between incidents can occur during equipment operation or when workers are trapped between objects, highlighting the importance of safety measures in these areas.