The 2012 Olympic and Paralympic Games will use a mixture of new venues, existing and historic facilities, and temporary facilities, some of them in well-known locations such as Hyde Park and Horse Guards Parade. In the wake of the problems that plagued the Millennium Dome, the organisers’ intention is that there will be no white elephants after the Games and instead that a “2012 legacy” will be delivered. Some of the new facilities will be reused in their Olympic form, while others, including the 80,000 seater main stadium,[25] will be reduced in size and several will be relocated elsewhere in the UK. The plans are part of the regeneration of Stratford in east London which will be the site of the Olympic Park, and of the neighbouring Lower Lea Valley.

This has required the compulsory purchase of some business properties, which are being demolished to make way for Olympic venues and infrastructure improvements. This has caused some controversy, with some of the affected proprietors claiming that the compensation offered is inadequate. In addition, concerns about the development’s potential impact on the future of the century-old Manor Garden Allotments have inspired a community campaign, and the demolition of the Clays Lane housing estate was opposed by tenants.

The majority of venues have been divided into three zones within Greater London: the Olympic Zone, the River Zone and the Central Zone. In addition to these are those venues that, by necessity, are outside the boundaries of Greater London, such as the Weymouth and Portland National Sailing Academy on the Isle of Portland in Dorset (which will host the sailing events), Tring in Hertfordshire (which will host the start of the 50 km walk) and other stadia across the UK.

Public transport, an aspect of the bid which scored poorly in the IOC’s initial evaluation, needs to see numerous improvements, including the expansion of the London Overground’s East London Line, upgrades to the Docklands Light Railway and the North London Line, and the new “Javelin” high-speed rail service, using Hitachi ‘bullet’ trains.

They also plan to have 80% of athletes travel less than 20 minutes to their event. The Park would be served by 10 separate railway lines with a combined capacity of 240,000 passengers per hour. Park and ride schemes also feature amongst the many plans aimed at reducing traffic levels during the games.

Concerns have been expressed at the logistics of spectators travelling to the venues outside London. In particular, the sailing events on Portland are in an area with no direct motorway connection, and with local roads that are heavily congested by existing tourist traffic in the summer. There is also only limited scope for extra services on the South Western Main Line beyond Southampton, without new infrastructure. Games organisers say that having analysed past Games sailing events, they would expect fewer spectators than have attended recent events such as the Carnival and Tall Ships Race, this despite Great Britain topping the sailing medal table at the previous three Olympics