If you drive a truck with a gross vehicle weight of over 3.5 t, what's the maximum speed at which you can drive on the road once you go past this sign?

In the photo, you are driving on a single-carriageway road through a forest, and on the right there is sign D-43 "end of built-up area". When driving a lorry with a maximum permissible mass of over 3.5 t, beyond this sign you may drive at no more than 70 km/h - answer C.

The Road Traffic Act states that the speed limit for a vehicle other than a passenger car, a motorcycle and a lorry up to 3.5 t outside a built-up area is 80 km/h on a motorway, an expressway or a dual carriageway with at least two lanes in each direction, and 70 km/h on other roads. The Regulation on road signs and signals states that sign D-43 marks the exit from a built-up area. Beyond the sign, the 50 km/h limit ends, but the road in the photo is a single-carriageway road with one lane in each direction, so 70 km/h applies - not 90 km/h as for passenger cars, and not 80 km/h as on a dual carriageway. The answers 50 and 60 km/h are too low. It is worth knowing the ladder of limits for lorries over 3.5 t: 50 in a built-up area, 70 on an ordinary road, 80 on an expressway, a motorway and a dual carriageway with two lanes in each direction.

Legal basis: Art. 20 para. 3 point 2 letter a and b of the Road Traffic Act (Prawo o ruchu drogowym); § 58 para. 3 of the Regulation on road signs and signals