October 4, 2007
Mad.co.uk: London Underground is working with CBS Outdoor to trial a new digital advertising format that could see 24 major London Underground stations replacing the old poster method. The new "cross-trax projection" (XTP) system, which allows moving advertising messages to be digitally projected on the walls opposite the platforms, will be installed at Euston station on the Victoria line from this week for a five week observation period.