Build a PDCA route audit from late-completion data and field observations.
Route 4 finishes 38 to 52 minutes late across three storms, mostly after the daycare and warehouse stops. PDCA route audit: Plan one route change, Do it once, Check evidence, Act on the standard. The common trap is changing five stops at once. If the route improves, nobody knows which change mattered; if it worsens, nobody knows what to undo. Before Supervisor says traffic is bad and tells the crew to hurry. After Supervisor tests one sequence change, measures finish time, and updates the route only when evidence supports it. Plan Hypothesis: the daycare should be serviced before warehouse delivery…
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