On South Africa’s busiest freight corridor, men and a handful of women decked out in blue overalls, hard hats and reflector jackets transform the landscape. As workers dodge cement mixers and construction site scaffolding, bulldozers widen the road linking the province of Gauteng to the eastern port city of Durban. Similar scenes are playing out across the country, as investors pour money into the country’s construction sector. They’re betting that a multi-billion-rand strategy by President Cyril Ramaphosa to overhaul South Africa’s ageing infrastructure will trigger a building boom. While red tape and criminal groups targeting the industry remain major concerns, analysts are optimistic that gains will continue.