Are you required in the presented situation to exercise special caution beyond the visible warning sign?

In the video you are driving on a road on the outskirts of a city, next to a construction site; ahead of you there is a lorry, on the roadway on the left there is an area closed to traffic, and on the right there are two yellow triangles: A-14 "roadworks" and A-30 "other danger" with a plate "Uwaga! Wjazdy i wyjazdy z budowy" (Caution! Construction site entrances and exits) and plate T-2 "100 m" showing the length of the dangerous section. Beyond the visible warning signs you must exercise particular caution. The answer is: yes.

The Regulation on road signs and signals states that warning signs warn of places on the road where there is or may be danger, and require road users to exercise particular caution; sign A-14 warns of roadworks being carried out on the road, and A-30 - of a danger of another kind, which is shown on the plate under the sign. According to the Road Traffic Act, particular caution means caution increased to a level that allows you to react quickly enough to a change in the conditions and the situation on the road. Lorries and machines may come out of the construction site straight onto the roadway, and mud from their wheels makes the road surface slippery; the signs and markings may be temporary. You slow down, increase your following distance from the lorry in front of you, watch the entrances on the right and are ready to stop.

Legal basis: § 3 para. 1, § 7 para. 5 and § 11 para. 1 of the Regulation on road signs and signals; Art. 2 point 22 of the Road Traffic Act (Prawo o ruchu drogowym)