Strategic logistics

Caspian energy export — the westward pipeline system

• Baku — The Caspian production and export origin. Recorded as the module's published capital marker, not as a facility.
• Baku–Tbilisi–Ceyhan energy corridor — The module's published corridor marker for the westward pipeline route as a whole.
• Tbilisi — Georgia is the transit state; the capital stands for the country's role rather than for any point on the route.
• Batumi — Black Sea outlet, and part of the wider export picture alongside the pipeline route.
• Armenia–Türkiye border — Included as the published marker for the closed border — the reason no route runs through Armenia and the clearest single expression of its exclusion.

Armenian external access — two borders open, two closed

• Upper Lars crossing — The only functioning crossing between Georgia and Russia, and therefore the bottleneck of Armenia's northern trade. Closes for weather and has closed for politics.
• Tbilisi — Georgia is the transit state for the large majority of Armenian trade.
• Poti — Black Sea outlet used for Armenian containerised trade.
• Gyumri — Near the closed Turkish border; the rail line through it has been out of service since 1993.
• Armenia–Türkiye border — CLOSED since 1993. Recorded as the system's principal constraint rather than as a route.
• Syunik province — The southern province carrying the Iranian route, and the territory any proposed Azerbaijani connection to Nakhchivan would cross.
• Lachin corridor (legacy) — HISTORICAL. Operated between 2020 and 2023 connecting Armenia to Karabakh under the trilateral arrangement; blockaded from December 2022 and superseded by the September 2023 events. It does not exist as a system now and is recorded for completeness, not as current capacity.

The Middle Corridor — east–west trade transit

• Baku — Caspian crossing point on the western shore, and the corridor's principal transhipment stage.
• Middle Corridor (Trans-Caspian route) — The module's published marker for the route as a whole.
• Tbilisi — Georgian rail transit; the capital stands for the country's segment.
• Poti — Georgia's principal Black Sea container port and the corridor's maritime outlet where cargo does not continue by rail into Türkiye.
• Armenia–Türkiye border — Closed. Recorded as a constraint on the system rather than as part of it — its opening would add a route that does not currently exist.
• Nakhchivan — PROPOSED, not operating. A land connection between Azerbaijan and its exclave across southern Armenia is a subject of negotiation; no such route is in service and this record does not treat it as infrastructure.
• Syunik province — PROPOSED, not operating. The Armenian territory any such connection would cross, and the reason the question is a sovereignty matter rather than an engineering one.

TRIPP — the proposed Syunik transit route

• Nakhchivan — PROPOSED TERMINUS. The Azerbaijani exclave the route is intended to reach. Azerbaijan has reported a 194 km railway advancing toward the Armenian border on its own side and describes Nakhchivan as a prospective cargo hub. Existing infrastructure on Azerbaijani territory; not TRIPP.
• Syunik province — PROPOSED CROSSING. The Armenian province the route would cross. Nothing has been built here. Syunik also carries Armenia's existing north–south road to Iran, which is a separate system and is not part of TRIPP.
• Baku — Origin of the Azerbaijani rail and road network the route would join. Existing infrastructure.
• Yerevan — Armenia's administrative centre and the seat of the jurisdiction question: Armenia's stated condition is that any route operate under Armenian law.
• Armenia–Türkiye border — CLOSED. The onward connection that would give the route its wider value, linking Nakhchivan to Türkiye. Closed since 1993 and not opened; a completed TRIPP would terminate at a frontier that does not function.