United Kingdom monorail lines currently under construction. Active extensions, new monorail routes and network expansion projects.
United Kingdom monorail lines currently under active construction: new systems in cities or airports without an existing monorail, extensions to serve new terminals or development areas and upgrades to existing routes. Monorail construction is often chosen for elevated urban transit where surface space is limited and full metro tunnelling is cost-prohibitive.
United Kingdom currently has 880 railway segments under construction including 811 railway, 34 tram, 26 light rail and 9 narrow gauge.
Last update: 2026-07-24