TTK is an independent mobility consultancy. Since 1996 it has been advising public authorities and transport operators on the optimisation and development of public transport networks and systems. The 50 international employees develop mobility strategies and infrastructure planning throughout Europe and sometimes beyond.
TTK specialises in the development of long-term sustainable and integrated mobility plans, as well as the development of strategic public transport visions and corresponding action plans, the optimisation of urban public transport networks, feasibility studies of transport projects covering rail, light rail and tramways, as well as bus transport solutions. TTK also supports local authorities in the development of active modes and new areas of mobility such as mobility management and alternative motorisations. The daily practice of knowledge transfer between France, Germany and other countries, as well as access to feedback from transport network operators, gives TTK a special identity.