Mid-facility interchange where passenger trams and freight spurs cross under tighter access tiers. Routing toward research wings and logistics corridors.

• FREIGHT-AUTO-3 — Palletizer + barcode gates; tram-signal interlock handshakes.
• XFER-TUN-2 — Tunnel lighting/CCTV upgrade with thermal + motion analytics.
• DRILL-EGR-B — Egress & muster drills with cross-sector comms; timed route audits.