Advance direction sign showing restrictions
Information signsSign no. 4.40OSR art. 52
What the sign says
On the arm concerned, the panel reproduces the restriction awaiting whoever takes that direction: height, weight, width, ban.
The exam trap
It is the last place to back out without manoeuvring: past the junction, turning round with a trailer at a too-low archway is expensive.
Study topic
Signs and road markings
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.