You are driving a combination of vehicles whose length is 10 metres, and carrying a load which protrudes from the back of the trailer at 0.5 metres. Are you allowed to drive onto the road beyond this sign?

Why?

The B-17 sign prohibits vehicles and vehicle combinations longer than 10 m, including their load. Your combination measures 10.5 m with the projecting load, so it exceeds the limit. Measuring the vehicles without the load would not establish whether entry is permitted.

§ 20 ust. 3 rozporządzenia w sprawie znaków i sygnałów drogowych