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One Way (Left): What It Means & What To Do

One Way (Left) (R6-1) - rectangle (vertical) white with black/red regulatory sign: Traffic on this road moves to the left only
MUTCD CodeR6-1
CategoryRegulatory Signs
ShapeRectangle (vertical)
ColorWhite with black/red

What Does the One Way (Left) Mean?

Traffic on this road moves to the left only.

About This Sign

This one-way sign with a left-pointing arrow indicates the direction of traffic flow on a one-way street.

Where you will see it

This one-way sign has an arrow pointing left. It tells you that all traffic on this road moves to the left only, and it is posted on one-way streets.

What to do

  • Drive only in the direction the arrow points, to the left.
  • Do not turn onto this street against the arrow.
  • Look for traffic coming from your right when you cross or enter.

A common mistake

A driver who gets used to two-way streets might enter against the arrow or expect cars from the other side. On this road, traffic moves only one way.

What to remember for the test

Read the arrow, not the sign position. A left-pointing arrow means traffic flows left only. R6-2 carries the same message in a vertical form.

Commonly Confused With

Other Regulatory Signs

Frequently Asked Questions

What does the One Way (Left) mean?

Traffic on this road moves to the left only.

What shape and color is the One Way (Left)?

The One Way (Left) uses the Rectangle (vertical) shape and White with black/red coloring.

Practice Road Sign Questions

Test your knowledge of road signs with free DMV practice tests.