A summer-route rise may relate to loading and preparation changes as well as ambient conditions.

Locate the issue

Compare starting conditions on the same route and load profile; do not assume season alone explains it.

Build the comparison. Record ambient conditions, loading area, door openings, load and plate readiness on one timeline.

Four control fields

  • Ambient condition
  • Loading area
  • Door and load
  • Plate readiness

Compare where the rise begins with validated conditions; do not declare one variable the cause.