SMART stands for Stormwater Management and Road Tunnel.
The SMART tunnel consist of three sections.
The upper two sections are roadways that cater to traffic.
Each section allows traffic to travel in one direction only.
The third section at the bottom is a storm water tunnel.
The upper channel is still open to motorists.
During an impending flood, the upper two roadways are closed to traffic and evacuated.
Then the entire three sections of the SMART tunnel is ready to carry flood waters.
SMART opened to traffic on 14 May 2007, after four years of construction.
The cost of the project was around MYR1,887m (approximately $514m).
The tunnel handles 30,000 cars per day and has been used 44 times to divert floodwater.
Sources:Smarttunnel,Gamuda,Roadtraffic-technology,Jameschin,Mohamad Fazli
