Based on the fall accident case attached, analyze the root cause of the accident with system diagram. Submit a pdf file (up to 2 pages) that include the system diagram and answers for the questions below:
Step 1. Identify at least 15 variables that influence fall risk on this project. Variables should include four levels: risk perception (individual level), field presence (supervisory level), production pressure (organizational level), guardrail coverage (environmental level). Each level should include at least 3 variables. Avoid vague variables (e.g., safety problem, bad management). Good variables are measurable and/or conceptually clear. List them according to each level.
Step 2. Build causal loop diagram. Construct a causal loop diagram that:
- Shows directional arrows
- Include polarity (+/-)
- Contains at least 2 reinforcing loop
- Contain at least 1 balancing loop
Example of reinforcing loop: Production Pressure (+) Rushing Behavior (+) PPE Non-Compliance (+) Incident Probability (+)
Example of balancing loop: Incident (+) OSHA Fall Protection Enforcement (+) Fall Risk (-)
Step 3: Identify and explain feedback loops. Select one loop and do the following:
- Name it (e.g., “Schedule Pressure Loop)”
- Explain how it operates
- Explain how it contributed to the accident
- Discuss whether it stabilizes or destabilizes the system
Step 4: Based on the system diagram, answer in 200 words.
Q: Why do organizations repeatedly fail at fall protection despite clear OSHA regulations?
Use attached lecture slides and case study for your reference.

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