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Concept
Fort Canning Tunnel
Résumé
Fort Canning Tunnel (), abbreviated as FCT, is a vehicular tunnel in the Central Area of Singapore.
Besides the utilisation of relatively new engineering techniques, special care was taken to minimise impact on the environment of the surrounding Fort Canning during construction. The original contract for the FCT project was awarded to Sato Kogyo for S$25.95 million.
The FCT was one of four Technical Tours organised by the Land Transport Authority and Association of Consulting Engineers on 29 September 2006 during the World Roads Conference 2006 held in Singapore.
The FCT cuts under Fort Canning Park and an access road, Canning Rise. The entrance to the tunnel is roughly located on the land housing the Old National Library Building, at the junction of Stamford Road, Armenian Street and Queen Street. It brings traffic to Penang Road, providing direct access to the Orchard area. The stretch of Stamford Road between Queen Street and Bencoolen Street will also be permanently realigned in front of the National Museum of Singapore after the FCT's construction. The bedrock of the area was the so-called Fort Canning Boulder Bed, a stiff clay with huge embedded boulders.
The tunnel is part of a 500 m uni-directional three-lane new road. The FCT itself has a length of 350 m, and will include an Electronic Road Pricing (ERP) gantry to "close up the Orchard Road ERP cordon". The FCT incorporates electrical cables to ensure continued mobile phone and radio coverage. Furthermore, ventilation jets were installed in case of traffic congestion or fire. The tunnel has no fire exits, due to the relatively short distance. National Fire Protection Association standards require emergency escapes in tunnels every 300 m. 4 closed-circuit TV cameras are installed, 2 of which are inside the tunnel.
The FCT project was based on the Urban Redevelopment Authority's plans for the Museum Planning Area. Over 3,000 vehicles pass through Stamford Road every hour during peak periods. With the old traffic scheme, motorists stopped at 2 traffic lights at slow speeds, which made the area prone to congestion.
Source officielle
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