London mayor Boris Johnson has set out plans for more than £1 trillion investment in the capital’s infrastructure.
Launching a consultation on his 2050 London Infrastructure Plan, Johnson said the city could lose its global status without a major improvement programme.
His plan includes at least one more Crossrail scheme, a hub airport in the Thames Estuary, an orbital road tunnel and 9,000ha of new green space.
Johnson said: “This plan is a real wake-up call to the stark needs that face London over the next half century.
“Infrastructure underpins everything we do and we all use it every day. Without a long term plan for investment, and the political will to implement it, this city will falter.”
The Mayor intends to establish a London Infrastructure Delivery Board consisting of representatives of London’s main infrastructure providers.
Arup has estimated the total cost of the plan at up £1.3 trillion, although Johnson wants to find ways to reduce this.
The consultation on the London Infrastructure Plan 2050 will run for three months, and the Mayor is expected to publish a final report in early 2015.
Civils firms backed the report.
Civil Engineering Contractors Association chief executive Alasdair Reisner said: “Our industry has long argued that long-term visibility of workload is essential if we are to play our part in delivering world-class infrastructure in an efficient and timely manner.
“An infrastructure plan for London which has cross-party support will encourage innovation, better resource allocation, an improved skills base and a more stable workforce throughout the construction sector.”
The mayor’s plan has also won support from a wide range of senior industry figures.
The population of London is forecast to increase by 37% by 2050, to more than 11M people.