On the Rte de Suisse, which is mapped as a primary road, I imagine that a lane will generally be considered as more secure than a shared_lane. I tried it with geovelo.ch (the system which is supported by regional authorities), however that system has not yet updated its routing base data and it currently proposes itineraries on the right side track (i.e. in a wrong direction, because that was not tagged as oneway before my last edits). 

Regarding the benefit of the lanes that I mentioned regarding the lateral passing distance: that is not solely my own perception, this benefit has been confirmed by an evaluation study ;-)