Must you always stop when approaching a road designated to bicycles?

No, there is no absolute obligation to stop before every cycle crossing. According to Art. 27 of the Road Traffic Act, a driver must exercise particular caution and give way to a cyclist who is on or entering the crossing. Stopping is only necessary when the situation requires it to give way. In the video, the traffic light is green and the crossing is clear, so you can continue driving without stopping.