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Official United States One-Direction Large Arrow Road Sign

Federal MUTCD Specifications

Standard Code
W1-6
Sign Category
Warning
Shape
Horizontal Rectangle
Color Scheme
Yellow with Black Horizontal Arrow

Warning Road Sign (W1-6)

One-Direction Large Arrow Sign Meaning & Driving Rules

Provides high-visibility emphasis of an abrupt, sharp change in horizontal alignment at a dangerous turn or T-intersection.

Required Driver Action & Right-of-Way Protocol

Slow down immediately and steer in the direction indicated by the arrow. You must make a substantial turn.

Detailed Overview & Purpose

The One-Direction Large Arrow sign (W1-6) is a rectangular warning device placed on the far outside of a sharp curve or directly in line with approaching traffic at a T-intersection. Its bold horizontal arrow cannot be missed.

It is specifically designed for high-risk locations where standard diamond signs may not provide adequate visual warning, especially at night or in heavy fog.

When you see this sign directly ahead across your path, prepare to turn immediately in the direction the arrow points.

Key Standard & Origin: Because it sits directly in the line of sight of approaching vehicles, the Large Arrow sign is one of the most effective tools for preventing nighttime run-off-road collisions.

Where You'll Find This Sign

Mounted on the outside shoulder of sharp curves, hairpin turns, and opposite the terminating roadway at T-intersections.

Common Driver Mistakes to Avoid

Failing to see the sign at night and driving straight off the roadway into a ditch or embankment.

How This Sign Appears on the DMV Knowledge & Road Test

Commonly featured in hazard identification and road geometry questions.

Legal Penalties and Moving Violations

Driving straight through a large arrow boundary results in property damage and reckless driving charges.

Sign Variations & Related Types

Large Arrow Pointing Left (W1-6L)

Directs traffic sharply to the left.

Large Arrow Pointing Right (W1-6R)

Directs traffic sharply to the right.

DMV Knowledge Check

When you encounter the official One-Direction Large Arrow (W1-6) on a roadway, what is your legal duty?

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