It has handed Fitch:London a design brief to create a series of structures that will roll out across all 500 London taxi ranks over the next five years.
The design will incorporate the umbrella TfL brand identity devised by the agency last year, as TfL seeks to emphasise that cabs come under its jurisdiction along with other forms of transport.
The identity uses the famous TfL 'roundel' as its core logo, with different colours to differentiate between modes of transport.
The taxi and licensed minicab services, managed by the Public Carriage Office within TfL, will be identified by a blue bar across a purple circle.
Written in the bar will be the words 'taxi' or 'private hire'.
David Ubaka, principle of architecture and interiors at TfL's corporate design division, said the black cab structures would range from a lozenge-shaped board with the roundel on a single post, to a canopied shelter up to eight cabs long, boasting VDU screens and zoned maps showing the cost of fares.
Large white 'help points', similar to those found at London Underground stations, will be installed at as many ranks as possible, in keeping with London Mayor Ken Livingstone's 'Safer travel at night' campaign.