Triangular signs represent hazard signs and they encourage people to slow down. They can announce real hazards (series of curves, narrowing of the road, etc.) or possible hazards (crosswind hazard, pedestrian crossing hazard, etc.).
In urban areas (en agglomération), it is 50 meters after seeing the danger sign. In the suburbs (hors agglomération) it is 150 meters in force.
Temporary hazard sign on a yellow background. The meanings are the same as those on the white background.
This engineering warning sign has always been temporary.
Need to pay attention to see this sign to slow down the speedometer because the construction crew may be working 24 hours a day, seven days a week.
