SUMO is a new system for planning, monitoring and evaluation of projects that through soft measures, like organisational routines, information and knowledge-enhancing activities or communication intend to influence attitudes and behaviour. SUMO can be used to describe how measures should be implemented. SUMO is adapted to de evaluation of measures and can be used to produce cause and effect relationships. Nyutgåva av Vägverkets rapport 2004:98E. New edition of The Swedish Road Transport Administration's report 2004:98E.