Bulgaria planned and proposed monorail lines. Future monorail routes and elevated transit expansion projects before construction begins.
Bulgaria monorail lines in planning or formally proposed but not yet under construction: new systems in cities considering elevated transit options, airport connector proposals and extensions to existing monorail networks. Viewing proposed lines alongside existing networks shows the intended direction of monorail system growth.
Bulgaria has 106 proposed railway segments including 69 railway, 29 tram and 8 metro.
Last update: 2026-07-23