Direct answer
Basecourse supports the finished surface. If the base is poorly shaped or compacted, asphalt, driveways and car parks can settle, soften or fail earlier.
What basecourse supports
- Driveways
- Car parks
- Subdivision access
- Commercial yards
- Vehicle crossings
What to ask about
- Excavation depth
- Compaction
- Drainage
- Vehicle loads
- Finished surface type