INE carries out a trend analysis of the Swiss mobility in the framework of the SCCER-Mobility project. Regarding the development of mode choice in Switzerland existing prognosis have been taken into account. Thus, for instance, the figure below shows the result of an estimation of the Swiss Federal Office for Spatial Development (ARE in German) published in 2013.
According to the report of ARE, active mobility might decrease by around 1% in 2030 compared to 2005. Motorized individual traffic might also decrease by 3.7% in a middle scenario and by 5.4% in a high scenario. In contrast, public transport use might increase by 4.7% or 6.3% depending on the scenario.
In short, additional public transport infrastructure and services might be needed to cover the increasing demand of this transport mode, while mobility management measures aiming a limitation of car use might have success in future in Switzerland.