Bulgaria Proposed Metro Lines — Planned Subway Routes and Future Underground Expansions

Bulgaria planned and proposed metro lines. Future underground routes and rapid transit expansion projects before construction begins.

Bulgaria metro and subway lines formally proposed or in active planning: future underground corridors announced, studied or included in urban transport master plans but not yet under construction. Shows where cities plan to extend rapid transit coverage — new orbital lines connecting suburbs without routing through the city centre, extensions to areas beyond the existing network and entirely new metro systems in cities currently without subway.

Bulgaria has 106 proposed railway segments including 69 railway, 29 tram and 8 metro.

  • Bulgaria — Metro Map
  • Bulgaria — Metro Under Construction
  • Bulgaria — Proposed Metro Lines
  • Bulgaria — Metro Stations Map
  • Bulgaria — Metro Speed Map
Proposed
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Last update: 2026-07-23

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🇧🇬Bulgaria
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