Maximum axle load
Regulatory signsSign no. 2.17OSR art. 20
What the sign says
The figure caps the load a single axle may bear. What is targeted is not the vehicle's weight but what it concentrates on one spot.
The exam trap
Where two axles are less than a metre apart, it is their combined load that must not exceed the figure shown.
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.