Prompt Details
Model
Chat - (gpt-5.6)
Token size
733
Example input
[INCIDENT_INFORMATION]: A warehouse forklift was reversing near a storage rack when it struck the lower section of the rack. No injuries were reported. The forklift operator stated that he did not see a pedestrian working nearby. A supervisor reported that the area was busy at the time of the incident.
[CONTEXT]: A busy warehouse where forklifts and pedestrians operate in the same general working area. Forklift operators are required to follow site traffic procedures and designated routes.
[EVIDENCE]: One supervisor statement and the forklift operator's statement are available. No camera recording is available. The condition of the floor, visibility, traffic markings, forklift inspection status, operator training records, and exact positions of the people involved have not yet been verified.
Example output
1. INCIDENT SNAPSHOT
A forklift was reversing in a warehouse near a storage rack and struck the lower section of the rack. No injuries were reported. The forklift operator stated that he did not see a pedestrian working nearby. A supervisor stated that the area was busy at the time.
At present, the available evidence consists of one forklift operator statement and one supervisor statement. There is no camera recording, and several important physical and procedural conditions have not yet been verified.
Current overall assessment: The incident is established at a basic level, but insufficient evidence exists to determine the immediate cause or root cause.
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2. CONFIRMED FACTS
Based strictly on the information provided:
FACT: A forklift was involved in an incident while reversing.
FACT: The forklift struck the lower section of a storage rack.
FACT: No injuries were reported.
FACT: The forklift operator provided a statement.
FACT: The operator stated that he did not see a pedestrian working nearby.
FACT: A supervisor provided a statement.
FACT: The supervisor reported that the area was busy at the time.
FACT: The warehouse is an environment where forklifts and pedestrians operate within the same general working area.
FACT: Site traffic procedures and designated routes are reportedly required for forklift operators.
FACT: No camera recording is available.
FACT: The floor condition, visibility, traffic markings, forklift inspection status, operator training records, and exact positions of the involved people have not yet been verified.
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3. UNVERIFIED CLAIMS
The following information may be accurate but has not been independently established:
UNVERIFIED CLAIM: A pedestrian was physically present near the forklift at the exact moment of impact.
UNVERIFIED CLAIM: The pedestrian was working in a location where pedestrian access was permitted.
UNVERIFIED CLAIM: The forklift operator could not see the pedestrian because of an obstruction, blind spot, traffic, lighting, or another condition.
UNVERIFIED CLAIM: The area was sufficiently busy to affect the operator's ability to observe hazards.
UNVERIFIED CLAIM: The forklift was following or violating the designated route.
UNVERIFIED CLAIM: The forklift operator was reversing at an excessive or inappropriate speed.
UNVERIFIED CLAIM: The pedestrian entered the forklift's operating area unexpectedly.
UNVERIFIED CLAIM: The rack was correctly positioned and protected.
UNVERIFIED CLAIM: The forklift was mechanically fit for operation.
UNVERIFIED CLAIM: The operator had completed all required forklift training.
UNVERIFIED CLAIM: Traffic controls, markings, barriers, warning signs, or pedestrian segregation were adequate.
UNVERIFIED CLAIM: The operator's visibility was adequate immediately before reversing.
None of these should currently be treated as established causes.
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4. INFORMATION CONFLICTS
There is no direct factual contradiction between the two statements currently available.
However, there are important ambiguities:
1. The operator says he did not see a pedestrian.
This establishes what the operator reports seeing, but does not establish why he failed to see the pedestrian.
2. The supervisor says the area was busy.
"Busy" is subjective and needs objective clarification.
It is not yet established whether traffic density actually affected visibility or maneuverability.
3. The pedestrian's exact location is unknown.
It is not established whether the pedestrian was behind, beside, in front of, or otherwise near the forklift.
4. The forklift's route is unknown.
It has not been established whether the forklift was on its designated route.
5. The reason for reversing is unknown.
The maneuver itself may have been necessary, but the circumstances and alternatives have not been established.
Conclusion: There is currently insufficient evidence to establish a contradiction or assign responsibility.
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5. MISSING EVIDENCE
The following evidence should be obtained where available:
Physical scene
Exact forklift position at the time of impact.
Exact rack position and condition.
Point and height of rack contact.
Forklift direction of travel.
Pedestrian's position.
Location of nearby workers.
Obstructions around the forklift.
Floor condition.
Lighting conditions.
Visibility/sight-line conditions.
Traffic signs and markings.
Pedestrian walkways and barriers.
Equipment
Forklift pre-use inspection record.
Maintenance history.
Brake, steering, warning device and reversing alarm condition.
Mirrors/cameras/sensors, if fitted.
Forklift identification and configuration.
People
Operator training and authorization records.
Operator's experience with the particular forklift.
Pedestrian training/authorization, if applicable.
Statements from other witnesses.
Procedures
Warehouse traffic-management procedure.
Designated forklift routes.
Pedestrian routes.
Rules governing reversing.
Requirements for spotters or banksmen, if applicable.
Speed restrictions.
Intersection and blind-spot controls.
Other evidence
CCTV, if any alternative camera exists.
Forklift telematics/data, if fitted.
Access-control or location records, if relevant.
Photographs of the scene immediately after the incident.
Rack inspection records.
Previous similar incidents or near misses.
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6. INVESTIGATION QUESTIONS
Operator
1. Where exactly were you positioned immediately before reversing?
2. Why did you need to reverse?
3. What direction were you facing?
4. What could you see through the available sight lines?
5. Did you check behind the forklift before reversing?
6. Did you use mirrors or other visibility aids?
7. Did you sound the horn or reversing warning?
8. What was your approximate speed?
9. Did you stop at any point before impact?
10. When did you first become aware of the rack?
11. When did you first become aware of the pedestrian?
12. Were there any obstructions?
13. Were you following the designated route?
14. Had anything changed in the normal traffic arrangement?
Pedestrian
1. Where were you immediately before the incident?
2. What task were you performing?
3. Why were you in that location?
4. Did you see or hear the forklift?
5. Did you enter the forklift's path?
6. Was there a designated pedestrian route available?
7. Were you aware that the forklift was reversing?
Supervisor
1. What specifically made the area "busy"?
2. Approximately how many forklifts and pedestrians were present?
3. Where were they located?
4. Were normal traffic routes being followed?
5. Were there any temporary activities or unusual conditions?
6. Had you observed any similar traffic problems before the incident?
Scene/control questions
1. Was the forklift operating within its designated route?
2. Was the pedestrian within a designated pedestrian area?
3. Were pedestrian and forklift routes adequately separated?
4. Were warning signs and floor markings visible?
5. Was the forklift's reversing alarm functioning?
6. Was the floor level, clean and unobstructed?
7. Were lighting conditions adequate?
8. Were there blind spots created by racks, stock, equipment or people?
9. Was a spotter required?
10. Was the rack properly protected against forklift impact?
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7. EVENT SEQUENCE
The most defensible sequence based on the available evidence is:
1. A forklift was operating in the warehouse.
FACT
2. The forklift began or was in the process of reversing near a storage rack.
FACT
3. A pedestrian was reportedly working nearby.
UNVERIFIED CLAIM — The operator reported not seeing a pedestrian; the exact pedestrian position and presence at the moment of impact have not been independently established.
4. The supervisor reported that the warehouse area was busy.
FACT regarding the supervisor's statement; the objective level of congestion remains UNVERIFIED.
5. During the reversing maneuver, the forklift struck the lower section of the storage rack.
FACT
6. No injuries were reported.
FACT
7. The precise mechanism that allowed the forklift to contact the rack has not been established.
MISSING INFORMATION
8. The underlying cause and root cause have not been established.
CONCLUSION: Insufficient evidence to determine.
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8. CONTRIBUTING FACTORS
These are potential factors, not confirmed findings:
Potential factor Current status
Forklift/pedestrian interaction in a shared work area FACTUAL CONTEXT
High traffic/congestion HYPOTHESIS / UNVERIFIED
Restricted rear visibility HYPOTHESIS
Blind spot created by racks/materials HYPOTHESIS
Inadequate pedestrian segregation HYPOTHESIS
Inadequate traffic markings HYPOTHESIS
Operator not following designated route HYPOTHESIS
Excessive/inappropriate reversing speed HYPOTHESIS
Inadequate reversing procedure HYPOTHESIS
Inadequate supervision HYPOTHESIS
Equipment defect HYPOTHESIS
Inadequate training HYPOTHESIS
Poor floor/lighting conditions HYPOTHESIS
No individual factor should currently be designated as causal.
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9. PRELIMINARY CAUSAL HYPOTHESES
Hypothesis A — Visibility limitation
The operator may have had inadequate visibility to the rear or side during reversing.
Evidence required: sight-line assessment, forklift configuration, photographs, rack/stock positioning.
Hypothesis B — Traffic congestion
The busy operating environment may have increased the likelihood of conflicting forklift/pedestrian movements.
Evidence required: number and positions of forklifts/pedestrians, traffic layout and witness statements.
Hypothesis C — Inadequate segregation
Pedestrian and forklift movements may not have been sufficiently separated.
Evidence required: site layout, pedestrian routes, barriers, markings and procedures.
Hypothesis D — Procedural deviation
The forklift may not have been operating according to the designated route or reversing procedure.
Evidence required: traffic procedure, route markings, scene reconstruction and operator statement.
Hypothesis E — Equipment or environmental factor
A mechanical, visibility, floor, lighting or other environmental condition may have contributed.
Evidence required: forklift inspection, maintenance records and physical scene examination.
Hypothesis F — Multiple interacting factors
The incident may have resulted from several factors operating simultaneously—for example, congestion + restricted visibility + inadequate segregation.
Status: Possible, but currently unconfirmed.
Root cause: Insufficient evidence to determine.
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10. CONTROL GAPS
Potential control weaknesses requiring verification:
Potential: Insufficient physical separation between forklifts and pedestrians.
Potential: Inadequate control of reversing operations.
Potential: Insufficient visibility controls.
Potential: Inadequate traffic markings/signage.
Potential: Inadequate management of congestion.
Potential: Insufficient supervision of traffic movements.
Potential: Inadequate forklift pre-use inspection or maintenance.
Potential: Training/competency gap.
Potential: Insufficient rack impact protection.
Potential: Inadequate monitoring of compliance with designated routes.
Potential: Insufficient control of temporary changes to warehouse layout.
These are potential control gaps only until verified.
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11. PRIORITY ACTIONS
Immediate actions should focus on preventing recurrence without assuming fault.
Priority 1 — Secure and inspect the rack
The impacted rack should be isolated from use until its structural condition has been assessed.
Priority 2 — Inspect the forklift
Verify that the forklift remains mechanically safe, including steering, brakes, warning devices and visibility aids.
Priority 3 — Preserve evidence
Photograph and document the scene, rack damage, forklift, markings, routes and surrounding obstructions before conditions change.
Priority 4 — Temporarily control the area
If forklift/pedestrian interaction remains uncontrolled, introduce temporary segregation or additional traffic controls.
Priority 5 — Obtain witness statements
Interview the operator, supervisor and any person who may have observed the incident.
Priority 6 — Verify traffic controls
Confirm whether designated routes and pedestrian controls were actually being used.
Priority 7 — Complete the investigation before assigning cause
Do not classify the event as operator error, pedestrian error, equipment failure or inadequate supervision until evidence supports that conclusion.
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12. EVIDENCE-BASED ACTION PLAN
Action Reason Priority Responsible Role Suggested Deadline Verification Method
Isolate and inspect damaged rack Prevent secondary collapse/injury Critical Warehouse/Engineering Immediately Documented rack inspection
Inspect forklift Establish equipment condition Critical Fleet/Maintenance Immediately Inspection checklist and maintenance record
Photograph/document scene Preserve evidence Critical HSE/Investigator Immediately Investigation photographs
Interview operator and supervisor Establish event sequence High Investigator/HSE Within 24 hours Signed/interpreted statements
Identify/interview witnesses Corroborate accounts High Investigator Within 24–48 hours Witness statements
Map forklift/pedestrian positions Reconstruct event High HSE/Warehouse Within 48 hours Scene diagram
Verify traffic routes Establish procedural compliance High Warehouse/HSE Within 48 hours Site inspection
Assess pedestrian segregation Identify exposure High HSE/Warehouse Within 72 hours Risk assessment
Verify forklift training Establish competency status Medium Training/HSE Within 72 hours Training records
Review forklift maintenance/inspection Rule out equipment contribution Medium Maintenance Within 72 hours Maintenance history
Review reversing controls Identify procedural weaknesses High HSE/Warehouse Within 5 days Procedure review
Implement temporary controls if needed Reduce immediate risk Critical Warehouse Management Immediately Supervisor verification
Complete root-cause analysis Establish defensible causes High Investigation Team After evidence collection Approved investigation report
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13. INFORMATION STILL REQUIRED
[ ] Exact location of forklift at the start of the maneuver.
[ ] Exact location of forklift at impact.
[ ] Exact location of pedestrian.
[ ] Identity and statement of pedestrian, if applicable.
[ ] Statements from independent witnesses.
[ ] Photographs of forklift and rack.
[ ] Rack damage assessment.
[ ] Forklift inspection status.
[ ] Forklift maintenance history.
[ ] Reversing alarm/warning-device condition.
[ ] Forklift operator training/authorization records.
[ ] Actual forklift speed, if measurable.
[ ] Floor condition.
[ ] Lighting conditions.
[ ] Visibility/sight-line assessment.
[ ] Location and condition of traffic markings.
[ ] Pedestrian route and segregation arrangements.
[ ] Designated forklift route.
[ ] Verification of whether the designated route was followed.
[ ] Applicable reversing procedure.
[ ] Applicable site speed limits.
[ ] Rack protection arrangements.
[ ] Any available telematics or equipment data.
[ ] Confirmation whether any alternative CCTV source exists.
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14. MANAGEMENT SUMMARY
The available evidence confirms that a forklift, while reversing near a storage rack, struck the lower section of the rack. No injuries were reported. The forklift operator stated that he did not see a nearby pedestrian, while the supervisor described the area as busy.
The available evidence is currently insufficient to establish why the collision occurred or whether operator behavior, pedestrian movement, visibility, congestion, traffic-management controls, equipment condition, environmental conditions, training, or supervision contributed to the event.
No root cause should be assigned at this stage.
The immediate priority should be to secure the affected rack, verify forklift condition, preserve the physical evidence, reconstruct the positions and movements of the forklift and pedestrian, obtain witness statements, and verify compliance with traffic-management controls.
Until those steps are completed, conclusions regarding individual responsibility or procedural failure would be premature.
Overall investigation status: OPEN — INSUFFICIENT EVIDENCE TO DETERMINE ROOT CAUSE.
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GPT-5.6
Turn messy incident information into a structured, evidence-first investigation.
This prompt helps investigators separate confirmed facts from assumptions, identify conflicting information, uncover missing evidence, build a defensible event sequence, develop preliminary causal hypotheses, identify potential control gaps, and create a practical evidence-based action plan.
Designed for workplace incidents, safety events, operational failures, equipment incidents, near misses, and other situation
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