Swiss Driving Theory · RTA / TRO
In Switzerland, crossing oncoming traffic on narrow roads or in the mountains follows clear rules: passing bays, uphill priority, and obedience to postal-bus drivers. Avoid blind crests and tunnels.
When crossing oncoming traffic on a normal road, keep as far right as possible and slow down if needed.
Crossing is forbidden on narrow bridges, tunnels and blind crests unless visibility and width allow it safely.
Cross on the right – keep a sufficient distance from oncoming traffic
The vehicle on the side with the passing bay (turnout) gives way and uses it
On a slope, the downhill driver generally yields to the uphill driver – reversing downhill is easier and safer
Heavy vehicles have priority over cars and motorcycles; postal buses on signed mountain roads have absolute priority
On signed mountain postal roads, the driver going uphill has priority. Follow signs from postal bus drivers – their instructions take precedence.
Never reverse blindly – use passing bays and stop in time if you see oncoming traffic.
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