At what maximum speed limit can you drive a passenger car of maximum permissible weight 3 t, on a single-carriage expressway?

In the photo you are driving onto a flyover with barriers, next to which there is sign D-7 "expressway" and a combined sign prohibiting entry of tractors, horse-drawn vehicles and bicycles; there is one roadway, and the question speaks directly about a single-carriageway expressway. With a passenger car with a maximum permissible mass of 3 t you may drive on a single-carriageway expressway at up to 100 km/h - answer B. The 120 km/h limit (A) applies to a dual-carriageway expressway, and 90 km/h (C) to other roads outside built-up areas.

The Road Traffic Act provides that the speed limit for a passenger car, a motorcycle or a lorry with a maximum permissible mass not exceeding 3.5 t outside a built-up area is 140 km/h on a motorway, 120 km/h on a dual-carriageway expressway, 100 km/h on a single-carriageway expressway and on a dual carriageway with at least two lanes in each direction, and 90 km/h on other roads. The Regulation on road signs and signals provides that sign D-7 means the beginning or continuation of an expressway. A mass of 3 t does not change the limit, because it does not exceed 3.5 t.

Legal basis: Art. 20 para. 3 point 1 letter c of the Road Traffic Act (Prawo o ruchu drogowym); § 48 para. 1 of the Regulation on road signs and signals