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West Coast Highway (Chinese: 西海岸大路; (マレー語:Lebuhraya Pantai Barat)) is a major arterial road in Singapore which links Jurong industrial estate and Clementi New Town to the city. It is an at-grade road from its junction with Pandan Loop and West Coast Road to its interchange with Pasir Panjang Road, where it becomes a grade-separated viaduct; the viaduct merges with Keppel Road before its interchange with Ayer Rajah Expressway. The total length of the highway is 11 km. The viaduct is newer than the at-grade section, having been completed in 2006. Despite what its name may suggest, the speed limit on the highway is less than that of an expressway. The highway also has a traffic light junction at its intersection with Clementi Road, something that expressways do not have. The at-grade section of the highway is a three-lane dual carriageway, and the viaduct is a two-lane dual carriageway with a 1-metre hard shoulder. At a length of 5 km, the viaduct is the longest in Singapore.〔(【引用サイトリンク】 West Coast Highway extension opens to traffic )〕 ==Extension== The Land Transport Authority started modifying and extending the highway in the late 1990s, in response to the increased amount of traffic using it. Its intersection with Clementi Road was widened in 2000.〔(【引用サイトリンク】 Expansion of junction at Clementi Road/West Coast Highway )〕 To allow motorists to bypass intersections at Pasir Panjang Road, LTA's plans also called for the construction of a viaduct that would provide a direct link from the highway to Keppel Road on the outskirts of the city area. The viaduct was built in two phases of 2.4 km each. The first phase, from Keppel Road to Telok Blangah Street 31, started construction in 1998 and was opened to traffic on 27 April 2002.〔(【引用サイトリンク】 Opening of semi-expressway at Telok Blangah Road (phase 1) )〕 The contract to build the second phase of the viaduct from Telok Blangah Street 31 to the highway's junction with Pasir Panjang Road, worth S$16.7 million, was awarded to L&M Prestressing in January 2000, and the viaduct was expected to be complete by July 2003. However, work slowed down in late 2002 because L&M encountered financial problems. L&M then promised LTA that the viaduct would be completed in May 2005. LTA agreed to give the company time to complete it, but when work had still not finished by that time, LTA terminated the contract on 1 June 2005 and called for an open tender to find a new contractor to finish the work.〔(【引用サイトリンク】 Termination of the employment of contractor for the upgrading of Telok Blangah Road and Pasir Panjang Road )〕 On 1 August 2005, LTA awarded the contract to ''Gammon'',〔(【引用サイトリンク】 Award of contract for upgrading of Telok Blangah Road and Pasir Panjang Road to Gammon Pte Ltd )〕 which completed the remaining work on schedule in March 2006. The viaduct's completion was commemorated with an opening ceremony and fun walk on 25 March 2006,〔(【引用サイトリンク】 Opening of West Coast Highway extension and upgraded roads )〕 with the then Minister for Transport Yeo Cheow Tong officiating; it was opened to traffic on 26 March 2006.〔 At the same time, the intersection of the highway with Jalan Buroh was converted from a box junction into a controlled roundabout with traffic lights. A slip road allows motorists to get to Jalan Buroh from the direction of the city without having to stop. The conversion started in May 2001 and was completed in the third quarter of 2005.〔(【引用サイトリンク】 Expansion of West Coast Highway/Jalan Buroh junction and upgrading of bridge across Pandan River )〕 In May 2009 construction of a new dual three-lane flyover at the junction of West Coast Highway and Clementi Road started. The flyover will cost S$57.5 million. The flyover will allow motorists to bypass the current traffic light junction and shorten travel time along the highway. The flyover will be completed by the third quarter of 2011. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「West Coast Highway, Singapore」の詳細全文を読む スポンサード リンク
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