The Basic Rule
At intersections without priority signs or markings, the vehicle coming from the right has priority – this is the most fundamental Swiss traffic rule (Art. 36 RTA).
At unsignalled junctions – that is crossroads, forks and side-road entries – the vehicle coming from the right has priority. This rule applies at all junctions without other regulation.
It applies on equivalent minor roads and likewise in 30 km/h zones. On main roads, by contrast, priority follows from the main-road signage: vehicles on the signposted main road have priority – even when coming from the left.
Priority from the right sits at the bottom of the hierarchy: police, traffic lights, signs and markings all take precedence over it.
Even when you cannot see clearly to your right, you must approach an unmarked intersection at a speed that lets you stop in time.
On minor roads without signs, priority from the right applies