Underground - Metro Fire+Security

Linea 9 Barcelona - Fire Safety & Security

RIP the DC subway: the demise of one of the best underground networks, The Independent

Twenty centimetres or $130 million: The fire safety conundrum facing Sydney Metro

Chapter Two - Literature Review, Planning and Design for Fire and Smoke Incidents in Underground Passenger Rail Systems

MTA Flagged for Lack of Safety Training in Wake of Motorman's Death

Evacuation Experiment in Rail Tunnels - Fire Safety Search

Underground - Metro Fire+Security

Tunnel Ventilation and Fire Safety Systems – How to Reach High Levels of Safety and Code Compliance

TÜV Nord (Technical Control Board North) recertifies the STUVAtec GmbH as Creator of Fire Protection Concepts for the DB Station & Service AG - tunnel

You Have to Actually Cut Open Mumbai's Belly'—Inside One of the World's Most Audacious Transit Projects - WSJ