Rail and Subway Tunnel Smoke/exhaust Coordination

This is transit/tunnel smoke ventilation. What approved sequence, rated detail, and test requirements control it?

I'm checking rail and subway tunnel smoke/exhaust coordination at [location]. I found: Duct/fire damper/exhaust work is treated like normal building duct.. This is transit/tunnel smoke ventilation. What approved sequence, rated detail, and test requirements control it?

Fire/Smoke Dampers & Rated Assemblies 4th Year RED

Stop if

Hold point on rail and subway tunnel smoke/exhaust coordination: I have the location, photo, drawing/detail/spec/submittal, and what I checked. Who should verify before this gets covered, tested, started, labeled, rerouted, or turned over?

Watch out

Do not change damper, opening, or duct routing without approved smoke-control direction.

Check

room/grid/area
photo of condition
current drawing/detail/spec/submittal
what I already checked
what decision is needed

Say this to your foreman

14720 rail and subway tunnel smoke/exhaust coordination fire/smoke dampers, rated assemblies & access red 4 this is transit/tunnel smoke ventilation. what approved sequence, rated detail, and test requirements control it? subway duct, tunnel ventilation, transit smoke exhaust, rail station hvac duct/fire damper/exhaust work is treated like normal building duct.

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