Long railway tunnels including Channel Tunnel and Crossrail present extreme fire safety engineering challenges.. Railway Tunnel Fire Safety Key Design Elements Ventilation systems for smoke extraction (longitudinal vs transverse) Cross passages between tunnel bores for evacuation Emergency lighting and wayfinding systems Fire rated structural lining protection Communication systems (radio, PA, emergency phones) Fire detection (linear heat, VESDA, video) Drainage for firefighting water and hazmat containment Rolling stock fire resistance requirements For tunnel fire engineering, contact us.