The future of Athens depends on the development and the systematic implementation of a policy for the sustainable mobility, which will guarantee an efficient, safe and environmentally friendly mobility to the citizens of Athens.  Within this work, the basic parameters of the Athenstransport system are analysed and on the basis of internationally accepted principles of urban transport systems, an integrated approach for the sustainable mobility policy is proposed.  More precisely, the basic policy principles are identified, followed by twenty priority actions and the basic topics of the necessary implementation plan.  The success of the sustainable mobility policy depends on the appropriate combination of the infrastructure projects development with respective measures for their operation, with emphasis in the parking and land use management, the use of public transport, as well as the exploitation of the opportunity of the Olympic Games of 2004.