Start with the complete entry route
Document the approach, landing, threshold and adjacent walking surfaces. The affected route may serve visitors, carts, deliveries or mobility aids. A close-up alone can miss how people use the transition and where water or winter exposure contributes to movement.
Record movement and access conditions
Photograph the level change with a measurement reference, keeping original units. Include the length and location of the transition, drainage, prior corrections, seasonal change and any loose or deteriorated concrete. Accessibility, structural and code determinations belong with the appropriate professional or authority when required.
Correct the cause as well as the transition
The repair path may involve transition work, leveling, replacement evaluation or drainage correction. An unresolved support or movement issue can cause the condition to return. Confirm scope, access protection and documentation needs before choosing the corrective method.