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The map uses Thomson Intermedia data and census information to create statistics on where different audiences can be found across the capital.

Available at www.talk2london.com, the site allows users to click on a selection of audience types.

It will show footfall, typical audience profiles and even local restaurants near every station in the network.

The map will work in conjunction with CBS Outdoor's network of Precision six-sheets, which offer advertisers a range of sites to choose from that target specific demographics.