Overhead lane control signals
Regulatory signsSign no. 2.65OSR art. 69
What the sign says
Light signals over the road close or open lanes one by one, the hard shoulder included.
The exam trap
Three signals, three orders: green arrow pointing down, the lane is open; flashing amber diagonal arrow, leave that lane as soon as you can; two red bars forming a cross, the lane is closed.
Study topic
Motorway and expressway
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.