A pavement can be designed correctly, with sound CBR data, the right Road Note 31 layer thicknesses, and a materials specification that accounts for Nigeria’s rainy season, and still fail within its first two years for reasons that have nothing to do with the design itself. A contractor selected on lowest bid without capacity verification…

Drive along almost any federal highway in Nigeria during the rainy season and you’ll see the same story repeating itself: potholes forming along wheel paths within two or three years of resurfacing, edge failures creeping in from poorly drained shoulders, and patched sections that fail again within months. For most site engineers and project managers,…

A road fails before it cracks. By the time you see rutting on a newly opened carriageway in Dubai or surface ravelling on an Abu Dhabi industrial access road, the problem was already embedded — in the subgrade assessment that was skipped, the binder course mix that was laid at the wrong temperature, or the…