Single flashing light signal

Priority signsSign no. 3.21OSR art. 93

What the sign says

A single flashing red light at a level crossing. Like the alternating lights, it means stop: a rail vehicle is coming.

The exam trap

One light does not mean one train, nor a lesser danger: it is the same order to stop as the two-light signal, until it goes out completely.

Do not confuse

Alternating flashing light signalOSR art. 93
St Andrew's crossOSR art. 93
Level crossing without barriersOSR art. 10 · art. 93

Study topic

Right of way and junctions

Practise this topic All signs

The signs are the official depictions by the Federal Roads Office, from the annexes of the Signalling Ordinance (SR 741.21): official works, unprotected under Art. 5 of the Copyright Act. The explanations, by contrast, are written from federal law — never taken from a third-party catalogue.