Comparison
| Surface | What the edge meets | Typical concerns | What to check |
|---|---|---|---|
| Concrete slabs | Hard, flat surface with joints | Edge wear; catching at joints and any stepped slabs | Joint height differences; edge condition and profile |
| Asphalt | Slightly softer surface, may have ruts or patches | Gouging in soft or damaged areas; patch edges | Patches, ruts and low spots on routes |
| Joint seals | Flexible material in joints | Pulling or cutting of seals by edges or shoes | Seal height and condition; edge contact at joints |
| Mixed surfaces | Changes between concrete and asphalt | Transitions that catch the edge | Location and height of transitions |
How to use this
The apron is several surfaces in one place, and the edge has to survive the worst of them.
- Map your apron surfaces, showing concrete, asphalt, joints and transitions.
- Walk it in daylight with the operators, noting steps, patches and damage.
- Brief operators on where to raise or slow.
- Choose edge and shoe set-up for the dominant surface, and consider a second set for the rest.
- Inspect the edge and the surface after storms.
Working with the airport
Airfield pavements and joint seals are managed by the airport operator. Agree who inspects after a storm and how damage is reported. Keep records of any contact with seals or lights.
Limit
This article gives no friction, hardness or wear values for any surface, and does not replace airport rules or regulator requirements.
A short briefing note
Give operators a one-page map and three rules: raise at stepped joints, slow at transitions and report any contact with seals or lights the same day. A short briefing before the first event is often enough to prevent the most expensive mistakes.
Boundary: No surface properties, friction values or regulatory requirements are given; follow your airport operator’s instructions and regulator requirements.
Further reading on this site.
Airport Snow Plow Blades: Specification Requirements for Runways and Aprons ↗Apron Clearing: Equipment and Edge Selection for Tight, Congested Areas ↗JOMA style rubber-flex blade ↗Edge Condition Data and the Airfield Snow Plan: Where It Could Fit ↗Rotary Plows, Plow Trucks and Brooms: Which Airport Tasks Need Which Edge ↗Small-Airport Winter Staffing and Spares: A Planning Worksheet ↗
