By exposing structured (open) available-, planned- and real-time information about the intentions of a specific mode of transport, possibilities for other modes of transport to dynamically adapt and adjust their voyage to avoid or minimize conflicts regarding shared resources, e.g. bridges, are created. This is explored in a two-and-half-year long Swedish inland waterway (IWW) project currently running in the Gothenburg area. In this project a River Information Services' (RIS) system is developed and demonstrated to solve resource conflicts between IWW transport and land based transport (rail, public transport, cars, pedestrians and cyclists) competing about the same resource; the passages through or over river Göta älv. GOTRIS is funded by authorities, regions and cities with interests in the hinterland of lake Vänern and Göta älv and it is scheduled to be completed December 2014.