3.1.4 SMART

Listed by CNN as one of the world’s Top 10 greatest tunnels, the 9.7km dual-purpose SMART is the world’s first traffic and stormwater management tunnel, commissioned by the Government of Malaysia.

The 13.2m-diameter tunnel was constructed with a Slurry Mix-Shield Tunnel Boring Machine (TBM) – the latest in Southeast Asia and the second largest in Asia.

Safety systems in the motorway tunnel include Automated Flood Control Gates, eight sets of Air Quality Monitoring Equipment (AQME) that monitor carbon monoxide, nitrogen monoxide and particulate levels, 24-hour SCADA Monitoring and Surveillance, ventilation and escape shafts as well as firefighting equipment, telecommunications and surveillance systems at every kilometre.