How it fits
The visible surface sits over base and subgrade layers that influence performance.
Operations
Drainage and moisture control are especially important where freezing can weaken pavement structure.
Canadian context
Freight corridors, local streets and northern roads can require different designs.
Limits and lifecycle
Resurfacing and rehabilitation are expected lifecycle activities rather than one-time fixes.
General infrastructure education only. Active road incidents, vehicle recovery and technical road work should follow responsible authorities and qualified professionals.