One-Direction Large Arrow sign
Placed on the outside of a sharp turn or curve, facing approaching traffic, to show the direction the road goes.
What to do
Slow down and turn in the direction of the arrow.
If you see this arrow straight ahead of you, you are at the turn: you should already be at a safe speed and steering in the direction it points.
Where it's used
Section 2C.10 allows the One-Direction Large Arrow (W1-6) to back up a Turn or Reverse Turn sign, or to stand in for Chevron signs or delineators where only a few can be seen or fitted. It is a horizontal black-on-yellow rectangle with one arrow pointing left or right, installed on the outside of the turn at about a right angle to oncoming traffic. It must not be used where the road does not change direction (such as at median ends), and a Confirmation Advisory Speed (W13-1aP) plaque may be added to it.
Don't confuse it with
- Two-Direction Large Arrow: The two-direction arrow points both ways at the end of a T-intersection, while the one-direction arrow shows a single turn direction on a curve.
- Chevron Alignment: Chevrons are a series of small vertical signs along the curve, while the Large Arrow is a single wide sign.
- Turn: The Turn sign is an advance warning diamond, while the Large Arrow marks the turn itself.
- Type
- Warning signs
- Shape
- Horizontal rectangle
- Colors
- yellow, black
- MUTCD code
- W1-6
- MUTCD section
- 2C.10
On state permit tests
Our questions for 1 state ask about this sign, including Pennsylvania.
Test yourself
A yellow rectangular sign with one large arrow (One Direction Large Arrow) means: (Pennsylvania practice test)
- Merge right
- Detour
- The road changes direction at an extreme angle; slow down as for a turn at an intersection
- One-way traffic
Show answer
The road changes direction at an extreme angle; slow down as for a turn at an intersection. The road ahead changes direction at an extreme angle; slow down as much as you would for a turn at an intersection.
More warning signs
Turn
Curve
Reverse Turn
Reverse Curve
Winding Road
Two-Direction Large Arrow
Chevron Alignment
Advisory Speed plaqueFrom the Manual on Uniform Traffic Control Devices (MUTCD), 11th edition, section 2C.10. Sign image: public domain, source.