Conference delegates to visit dual-purpose tunnel

Delegates to the ITS AP Forum will have an opportunity to visit Kuala Lumpur’s Stormwater Management & Road Tunnel (SMART), a unique solution to the Malaysian capital’s long-term traffic and stormwater management problems – the first tunnel of its kind in the world.
March 15, 2012 Read time: 2 mins
Delegates to the ITS AP Forum will have an opportunity to visit Kuala Lumpur’s Stormwater Management & Road Tunnel (SMART), a unique solution to the Malaysian capital’s long-term traffic and stormwater management problems – the first tunnel of its kind in the world. The dual-purpose tunnel can divert floodwaters away from the confluence of two major rivers running through the city centre, while its central section doubles up as a twin deck motorway to relieve traffic congestion at the main southern gateway into the city centre.

SMART, which cost some US$515M and opened to traffic in May 2007, comprises 9.5km of tunnel with the central 3km incorporating the double deck motorway. There are three modes of operation:
Mode one operates under normal conditions when low rainfall means that no water needs to be diverted into the tunnel. Moderate storms activate mode two, when floodwater is channelled into a bypass tunnel in the lower section of the motorway tunnel, enabling it to remain open to traffic; during the once or twice yearly heavy Monsoon storms a switch is made to mode three when the tunnel is closed to road traffic and the full tunnel section, with a combined capacity of three million cubic metres, becomes available to divert the dramatically increased flows of water.
Urban Traffic Control

Related Content

  • ITS investment on upward curve
    August 17, 2022
    More money is coming into the ITS sector – but where is it likely to go next? And what are the pros and cons of all this cash? Adam Hill talks to ITS veteran and corporate investment adviser Greg McKhann
    Read More
  • The ice man cometh
    August 7, 2018
    Extreme meteorological events have captured global headlines in recent years. Adam Hill talks to Vaisala’s Mark DeVries about what that means for transportation companies trying to keep roads clear. Extreme meteorological events have captured global headlines in recent years. Adam Hill talks to Vaisala’s Mark DeVries about what that means for transportation companies trying to keep roads clear
    Read More
  • Knowing when to slow down
    August 8, 2018
    Level 2 driver assistance vehicles have little problem reading fixed metal signs at the roadside - but it’s a different story with VMS in tunnels, finds Alan Dron. Following a series of hands-free driving tests in tunnels, an Australian road authority believes that car manufacturers have to up their game before vehicles have the required levels of competence to consistently perform ‘assisted driving’ tasks. The trials, in the state of Victoria late last year, tested the ability of several vehicles to stay
    Read More
  • EU defines and limits scope of tolling concessions
    September 16, 2014
    New regulations are set to standardise the process of awarding concessions across the European Union. In the wake of several inconsistent judgements at the European Court of Justice, the European Commission has approved new legislation that defines a concession. The basic demarcation from a public contract remains the same in that concessions include the right to exploit the work or services provided instead of payment. However, at the point of signing, the regulations impose an all-inclusive threshold of €
    Read More

Highlighted Content