# Global metropolitan transit and infrastructure developments > Live situation record from CLSTR: https://clstr.news/situations/global-metropolitan-transit-and-infrastructure-developments > Updated: 2026-09-21T15:00:35.000Z. Sources: 18. Developments: 2. Major metropolitan transit and infrastructure projects are advancing across several regions, leading to various service adjustments and construction milestones. In Bogotá, Metro Line 1 construction has reached 82.33% overall progress, including the completion of 18 kilometers of viaduct and train testing on U-shaped beams. To facilitate this work, TransMilenio S.A. will implement a total closure of the Calle 22 temporary station on Avenida Caracas starting October 11, followed by a schedule of weekend and nighttime closures. In Madrid, Metro de Madrid is conducting safety tests for the automation of Line 6, necessitating scheduled 48-hour service interruptions on specific weekends. Future plans include a new Y-shaped branch for Line 1 by 2030 and a new diagonal route for Line 11. Other regional developments include tunnel excavation for the Line 3 North Metro in Seville and the installation of an inclined tower for the AeroMetro project in Guatemala. In Caracas, road closures are scheduled for late September to accommodate road marking and signaling works. ## Timeline ### 2026-09-21: Infrastructure works trigger transport disruptions in Caracas and Bogotá Road closures and transit adjustments are announced for Caracas due to signaling works and in Bogotá for Metro Line 1 construction. 5 sources. https://clstr.news/cluster/infrastructure-works-trigger-transport-disruptions-in-caracas-and-bogot ### 2026-09-20: Global transit updates: Metro automation in Madrid and infrastructure progress in Bogotá and Seville Major transit updates: Madrid's Line 6 undergoes automation testing with weekend closures; Seville advances Line 3 tunnel works; Bogotá's Metro Line 1 reaches 82% completion; and Guatemala's AeroMetro installs 14 sources. https://clstr.news/cluster/urban-transport-projects-advance-in-madrid-and-guatemala-city --- Cite as: Global metropolitan transit and infrastructure developments. CLSTR, https://clstr.news/situations/global-metropolitan-transit-and-infrastructure-developments