![This traffic sign warns that there is a double curve ahead, first to the right and then to the left. It may be necessary for drivers to reduce their speed significantly, especially when they can’t see how sharp the curves are. This traffic sign is only used where the first curve is right behind the second. Warning for a double curve, first right then left.](/img/north-america/pa/signs/warning/warning-curve-right-left.png)
Warning for a double curve, first right then left.
![This traffic sign warns for a sharp curve to the right. Warning for a sharp curve to the right.](/img/north-america/pa/signs/warning/warning-curve-right-sharp.png)
Warning for a sharp curve to the right.
![This traffic sign warns for the end of a divided road. Warning for the end of a divided road.](/img/north-america/pa/signs/warning/warning-road-divided_end.png)
Warning for the end of a divided road.
![This traffic sign warns for two roads that are going to merge. Warning for two roads that merge.](/img/north-america/pa/signs/warning/warning-road-merge.png)
Warning for two roads that merge.
![This traffic sign warns for a road narrowing, the width of the road ahead will suddenly become smaller. Warning for a road narrowing.](/img/north-america/pa/signs/warning/warning-road-narrowing.png)
Warning for a road narrowing.
![This traffic sign warns for a road narrowing, the width of the road ahead will suddenly become smaller from the left. Warning for a road narrowing on the left.](/img/north-america/pa/signs/warning/warning-road-narrowing-left.png)
Warning for a road narrowing on the left.
The traffic signs are located on the side or top of the road. They give directions on how we should behave on the road, so that the traffic can proceed safely and smoothly. Everyone must know the traffic signs!
Warning for a double curve, first right then left.
Warning for a sharp curve to the right.
Warning for the end of a divided road.
Warning for two roads that merge.
Warning for a road narrowing.
Warning for a road narrowing on the left.