The Alpine regions still face a high need for action to improve the environmental situation along the transit corridors. Air quality limits are exceeded, the modal shift from road to rail is stagnating (with the expection of Gotthard). Thus, the region Rhône-Alpes, the Provinces of Bolzano and Trento, the Regions of Aosta Valley and Friuli-Venezia Giulia, the Piemonte, the Canton of Ticino, Central Switzerland, the Land of Tyrol and the Accademia Europea di Bolzano successfully continued their cooperation in 2015 to further specify elements of their common transport strategy. Especially, a proposition – developed by iMONITRAF! - for a Toll Plus system from the perspective of the regions was documented in an in-depth report, which was discussed on technical as well as political level in 2015.