Case Studies Jubilee Line Extension Construction Essay

Case Studies Jubilee Line Extension Construction Essay

The Jubilee line originally opened in 1979 and consisted of 2 and a half mile tunnel leading from Baker Street to Charing Cross However due to the short distance of line compared to others there was a need for an extension to fill the void At the time the London transportation system did not fully accommodate direct train access to areas such as Westminster the business sector in docklands and most of South and East London London underground Ltd decided to extend the 2 and half mile line with an additional 10 miles from Green Park to Stratford

London Underground Ltd had already planned to undertake a extension of the line along with various other project such as creating new lines However as with most public sector projects government approval was necessary before work could commence Initially the project faced being scrapped during parliamentary debates Fortunately it was saved by its main selling point which was unlike any of the other lines underground the jubilee line would be able to interchange into all existing underground lines Kenneth powell Moreover the proposal for the line accommodated one of Europes fastest growing business districts Canary Wharf the lack of transport links in south London London bridge inter change the regeneration of East London Stratford and a addition transport link to Parliament Westminster Kenneth powell The government eventually approved and designated funding for the project on 29th October 1993 with construction beginning in December JLE project bob mic Page 4849 The expected project completion time to be set around spring 1998 lasting a total of 52months and the estimated was approximately pound21bn in 1994 BBC

At the tendering stage It was decided that more than 30 major contracts and a number of smaller contracts will be awarded this posed a test on how the project would be managed reason being the difficulties that could arise from multiple contracts JLE project bob mic The different contracts were awarded for numerous amounts of activities such as tunnelling signalling and communication M and E the construction of the 11 new stations and other various works Kenneth powell JBLE

The WNSL opted for a low risk method of procurement known as design and build which the Australian contractor won the tender bid for the price of pound3265m guardian With design and build the contractor multiplex is appointed to design and build the project this generally gives the contractor overall control of the project However the contractor must follow the clients WNSL instructions from the brief The client will hire a employers agent is hired to monitor the site and enforce their instructions Murdock and Huges

The Client choose a fixed price contract with the contractors after the bid was signed it was agreed between both parties that the price would increase to pound445m Originally at the proposal stage the scheduled time for completion was set to be late 2003 however this goal was perceived to be impossible due to the nature of the time the bid was won As a result a realistic date was agreed upon with a stipulation that a penalty payment would incur if the project was over due by 31 Jan 2006

The concept of this project came about from the realisation in the early 1960s there was a lack of facilities and shortage of space in the British museums dome reading room in Bloomsbury It was decided that something had to be done to preserve the national library and an act was passed to rehouse the increasing collection and build a national library the British library colin st john Wilson Different design concepts were proposed based on the intentions of retaining the library in Bloomsbury but expanding it a further three floors However they did not allow much room for design changes one construction commenced The government approved the design in 1964 to expand the reading room with in the library However there were strong debates which suggested that the dome reading room expansion should be scr

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