The aim is to examine if, under certain conditions, freight transports could use public traffict lanes. Can such measures be implemented without that the public transport’s punctuality is negatively affected? In that case, what does it mean for total transport accessibility and what will be the effects on fuel consumption and the environment? A prerequisite is that the concept around the solution is developed, in terms of what kind of transport that should be allowed during which time frames and on which routes, so that the weighted impact is as positive as possible. In this context, solutions that dynamically take into account the current traffic situation are especially interesting.