Since Summer 2011, South Africans have been able to take advantage of the rapid rail link which now connects Johannesburg and Pretoria in 38 minutes, with no bottlenecks. Between 2006 and 2011, Bouygues Travaux Publics took part in the construction of the 77-kilometre line, which includes 15 kilometres of tunnels. The construction site abided by strict environmental protection guidelines which included replanting all trees removed, minimising noise levels and limiting the amount of dust generated.