Maximum length
Regulatory signsSign no. 2.20OSR art. 21
What the sign says
Permitted length in metres, load included, for a single vehicle as for a combination. It protects a tight bend, a narrow roundabout, a structure.
The exam trap
With a trailer or caravan, the whole outfit is measured, load included — not the car on its own.
Study topic
Vehicle and technology
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.