Statement: Two local passenger trains collided while running in opposite directions on the same track because the signalling system failed for a brief period. Courses of Action: I. The services of the motormen of the trains should be terminated immediately. II. The government should immediately constitute a task force to review the functioning of the signalling system. Which course(s) of action logically follow(s)?
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AOnly I follows
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BOnly II follows
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CEither I or II follows
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DNeither I nor II follows
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EBoth I and II follow
Answer
Correct Answer: Only II follows
Explanation
Introduction / Context:The stated cause of the collision is signalling failure. Rational courses must be aligned to the identified root cause and should avoid punitive steps against individuals without inquiry.
Given Data / Assumptions:
- Event: Head-on/opposite-direction collision on same track.
- Cause given: Signalling failed briefly.
- Needs: Root-cause analysis, system audit, fail-safe mechanisms (block working, ATP), SOP review.
Concept / Approach:Terminate vs. investigate: Termination (I) presumes motorman error despite a systems failure being cited. Systems engineering demands audits and technical remedies first; individual accountability, if any, should follow investigation.
Step-by-Step Solution:
1) I (terminate motormen): Not logically supported when the proximate cause is a signalling failure; premature without inquiry.2) II (constitute task force): Directly targets the system failure—review interlocking, signals, backups, maintenance, training, and incident-response. Logical and necessary.3) Therefore, only II follows.Verification / Alternative check:Rail safety practice prioritizes independent investigation, safety recommendations, and corrective actions (hardware redundancy, procedural safeguards).
Why Other Options Are Wrong:
• Only I / Either / Both: Punitive action without evidence conflicts with due process and systems logic.• Neither: Ignores the need to fix signalling.Common Pitfalls:Attributing complex failures to frontline staff without systemic review.
Final Answer:Only II follows.