# South American transport infrastructure developments > Live situation record from CLSTR: https://clstr.news/situations/south-american-transport-infrastructure-developments > Updated: 2026-10-09T13:39:00.000Z. Sources: 15. Developments: 2. South American nations are implementing various infrastructure and transport modernization projects. In Argentina, major aviation investments are planned through 2031, including US$760 million for a new international arrivals terminal at Ezeiza International Airport and US$200 million for Aeroparque. Regional airport improvements and the strategic recovery of railway services to create multimodal cargo and passenger systems in the Buenos Aires Province are also being prioritized. In Chile, developments include the commencement of operations at the new Balmaceda aerodrome passenger terminal and the launch of a new public transport service in Puerto Natales using Euro 6 diesel buses. Authorities in Punta Arenas have also announced plans to transition to a 100% electric bus system by late 2028. In Uruguay, the remodeling of the Colonia del Sacramento port terminal is nearing completion, adding capacity and new migration posts to manage seasonal traffic. ## Timeline ### 2026-10-09: Regional transport developments in Buenos Aires and Magallanes Infrastructure updates include proposals for a multimodal railway network in Buenos Aires Province and the launch of a new bus service in Puerto Natales with future plans for electric mobility in Punta Arenas. 4 sources. https://clstr.news/cluster/regional-transport-developments-in-buenos-aires-and-magallanes ### 2026-10-08: South American transport hubs undergo major infrastructure upgrades South American transport hubs are seeing major upgrades, including a US$1.5 billion airport modernization plan in Argentina, a US$31 million port terminal expansion in Uruguay, and a new terminal in Chile. 11 sources. https://clstr.news/cluster/colonia-del-sacramento-port-terminal-expansion-to-finish-in-november --- Cite as: South American transport infrastructure developments. CLSTR, https://clstr.news/situations/south-american-transport-infrastructure-developments