text: Well it's painful even for locals to keep track of what streets are open to which type of trafic at what time of the day. Because yes, in some streets in this area traffic allowances depends on the time of the day. 
  Regarding Klostergatan, its width does shrink to a one-car-width more or less where the changed is marked on the map and there's a sign indicating that it's a pedestrian road but also mentioning that vehicles with clearance are allowed to drive through. 
  Not sure whether it's one-way only though, but maybe it should not be referenced as trafficable at all. 