The Smart Tunnel (SMART) is a 9.7km long tunnel in Kuala Lumpur that consists of both a stormwater tunnel and motorway tunnel. The stormwater tunnel diverts flood water from the city to reduce flash floods, while the motorway tunnel helps reduce traffic jams. SMART has automated gates and ventilation systems to allow flood water to pass through when needed while keeping the motorway open during normal conditions. It also has emergency exits, medical and fire response vehicles, and CCTV monitoring for safety. The site visit helped students understand SMART's role in both stormwater management and traffic flow in Kuala Lumpur.