9/12/2023 0 Comments Charles and keith paya lebar![]() This plan was put in place after a taxi caught fire in the KPE tunnel on 29 August 2017 and triggered an evacuation. 15 Fire protection in the tunnel is enhanced by a water mist system to be installed by 2022. Escape stairs to the ground level every 500 m and cross passage doors allow emergency vehicles and people to move from one tunnel to another during accidents. ![]() Emergency cabinets holding fire extinguishers and fire alarms are situated very 50 m along the tunnel, with every alternate cabinet containing an emergency phone to allow communication with the control centre. When the level of carbon monoxide gets exceedingly high or when there is a fire, the ventilation system will be activated to extract the exhaust fumes or smoke out of the tunnel. Sensors monitor carbon monoxide levels in the tunnel. State-of-the-art fibre-optic heat detectors monitor the temperature in the tunnel and will activate an alarm in the event of a fire. In addition, the centre will be alerted if the automatic accident-detection cameras pick up something unusual, such as a vehicle remaining stationary for too long in the tunnel. With the help of 103 closed-circuit television cameras and 188 detection cameras, the KPE Operations Control Centre monitors the traffic situation on the expressway, especially the tunnel, 24 hours a day. ![]() Temporary dams were built for Geylang River, so that a road tunnel could be built under it. They were reinstated after construction was completed. 12 When KPE was being built, various roads, a river and a canal were realigned temporarily, so that the tunnel could be dug. A deep trench was first dug, after which the road tunnel was built within the trench, and finally the trench was filled in to bury the completed tunnel. The tunnel was built using the cut-and-cover method. Extra measures were taken to monitor and mitigate the effects of the construction work on nearby structures. This was done by constructing three quarters of the expressway underground, with the tunnel snaking under built-up areas, Geylang River and Pelton Canal, and large water and gas pipes. When planning the project, the LTA sought to minimise the amount of land that would be used for the expressway. 9 The contracts included specifications for the design and construction of the underground portion of the expressway (between ECP and Defu Lane 3), the construction of several road interchanges and six ventilation buildings, and the construction of the ground level portion for the last 3 km stretching from Defu Lane 3 to TPE. 8 A total of six civil works contracts were awarded. With the project’s overall bill amounting to S$1.74 billion,KPE was the most expensive road project by the Land Transport Authority (LTA) then. 6 The government approved the funding for the project in early 2001, and the first major contract was awarded in October 2001. 5 The combined expressway, now known as KPE, was included in the revised Concept Plan of 1991, which mapped out the broad directions for Singapore's long-term development. KLE was part of a 1967 government plan to build a network of nine expressways across Singapore, while PLE was added to the transport plan in the mid-1980s after the government completed its North-East Sector Study (1985–86). KPE is a combination of two expressways – the 2.8-kilometre Kallang Expressway (KLE) that links ECP to PIE, and the 9.2-kilometre Paya Lebar Expressway (PLE) that connects KLE to TPE. 3 It also reduces traffic on Central Expressway (CTE) and improves the connectivity between three major expressways –ECP, TPE and Pan-Island Expressway (PIE). 2 Built to improve connectivity between the northeastern parts of Singapore and the city, KPE cuts the travel time from areas such as Sengkang and Punggol to the city by up to 25 percent. 1 Stretching 12 km from East Coast Parkway (ECP) to Tampines Expressway (TPE), KPE includes a 9-kilometre-long tunnel, which was the longest underground road in Southeast Asia when it was completed in 2008. Kallang-Paya Lebar Expressway (KPE), Singapore’s ninth expressway, was fully opened to traffic on 20 September 2008.
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