In this situation, when driving straight through an intersection, can you refrain from taking extra care?

In the video you are approaching a junction with traffic lights in town, going straight on; the traffic lights show green, and a lorry is driving ahead of you. When going straight on through the junction, you cannot give up particular caution. The answer is: no.

The Road Traffic Act states that a driver approaching a junction must exercise particular caution - regardless of whether he is going straight on or turning, and whether he has a green light or right of way from signs. A green signal allows you to enter, but it does not guarantee that everyone else will behave correctly: someone may enter on red from the intersecting road, a vehicle from the opposite direction may turn left across your path, a pedestrian may be finishing crossing on a red light for him, and an emergency vehicle (with flashing blue lights and a siren) may arrive with its signals on. Particular caution means increased attention and readiness to react quickly: you watch the roads entering from the left and right, the crossings, and the lorry ahead of you, which hides part of the junction, and you keep a following distance that lets you brake if it suddenly stops. Giving up this caution on green is the most common pattern of accidents at junctions with traffic lights.

Legal basis: Art. 25 para. 1 and Art. 2 point 22 of the Road Traffic Act (Prawo o ruchu drogowym); § 95 para. 1 point 1 of the Regulation on road signs and signals