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

  • Rio’s TMC rises to Olympic challenge
    October 27, 2016
    Timothy Compston lifts the lid on Rio de Janeiro’s preparations for keeping its transport systems moving during the Olympics – and the outcome. Hosting the Olympics poses major traffic management challenges for any city and Rio was no exception – especially as it is already one of the world’s most congested cities. Beyond its normal 6.5 million inhabitants wanting to carry on their daily lives, in August Rio was also home to 11,300 athletes from 206 countries. Athletes who, without fail, had to reach their
    Read More
  • Diverse development of tolling business models
    April 25, 2013
    A diversity of tolling business models offers a wider toolbox of highway finance options, as the IBTTA’s Patrick Jones explains. The business models for America’s tolled highways have gone through several different evolutions over the last 75 years, reflecting a succession of shifts in transportation policy and politics, financing and funding models, urban patterns, customer needs, and technology. And with more and more decision-makers expressing renewed interest in tolling, it’s that very diversity that ma
    Read More
  • Developments in smarter multi-modal fare paynment
    February 2, 2012
    This section pulls together all the multi-modal topics in each issue. Subject matter will include smartcards; ticketing and payment systems; passenger information systems; fleet management for buses, trains and light rail; park and ride systems; on-line access to real-time information via Internet portals
    Read More
  • Auckland reduces airport journey times
    April 16, 2018
    Getting from the centre of Auckland to the city’s airport used to be fraught with unwanted stress for passengers – but a new system combining radar, Bluetooth and Wi-Fi is smoothing things over. Andrew Stone investigates. Struggling to cope with steady growth in passenger numbers and the costly traffic congestion which that can entail, New Zealand’s Auckland International Airport has deployed an innovative system that is smoothing traffic and passenger flows. The same system is also offering new, data-led
    Read More

Highlighted Content