I refer to your constituents' queries regarding the resurfacing of Glamis Road and Westgrove Avenue. These two locations were surfaced using different processes.
Glamis Road was surface dressed which is a cost-effective method of re-waterproofing and restoring the skid resistance to the existing carriageway surface and is used where the underlying road profile remains in reasonable condition. It is used on routes with high vehicle numbers as the action of the traffic is required to embed the applied stone chips.
Westgrove Avenue carriageway had a thin surfacing applied which is a proprietary process used on quieter/ residential routes where traffic flow is less and where there may have been some wear of the existing carriageway fabric.I have made the point that the "surface dressed" chippings method has clear drawbacks and would prefer to see other - superior - methods used where possible.