
A car park or hard standing is built like a road: excavate to formation, place and compact sub-base to the design thickness, install drainage and kerbed edges, then surface in concrete or bitumen. Areas taking loaded HGVs need a heavier build-up than car-only parking bays.
The difference between a car park that lasts and one that ruts in two winters is almost always the build-up under it and where the water goes.
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Loading bays, bin stores, delivery routes and fire tender access carry far higher loads than parking bays. Those areas are normally built with a thicker sub-base, or in reinforced concrete where turning and standing loads are constant.
Car parks generate significant run-off. Falls are set to gullies or channel drains, and storm water is taken to attenuation, a soakaway or the site network as the drainage design requires. Fuel or oil risk areas may require a petrol interceptor.
Bitumen surfacing is common for parking bays and access aisles. Reinforced concrete is generally used where vehicles turn, stand or load repeatedly, such as yards, bin areas and loading docks, because it resists rutting and point loads better.
Frequently. Large impermeable areas increase run-off, so planning and drainage designs often require attenuation, permeable surfacing or a restricted discharge rate.
Yes. Yards and hard standings for plant, containers, bins and material storage are built to the loading involved, in compacted sub-base with a concrete or bitumen surface.
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