Colombia is moving ahead with its 4G programme, as nine of the 30 key projects in the road development scheme now financially secured. The remaining 21 projects are now being built, while 25 of the projects from the 1G, 2G and 3G schemes are already in use, having expanded Colombia’s network by a total of 3,743km. Colombia's National Infrastructure Agency (ANI) says that 10 projects are being carried out entirely with private funding. In addition, over the last seven years, 48km of tunnels and 430 bridges