Skip to content

Straight Ahead Only: What It Means & What To Do

Straight Ahead Only (R3-5) - rectangle (vertical) white with black/red regulatory sign: This lane must go straight only
MUTCD CodeR3-5
CategoryRegulatory Signs
ShapeRectangle (vertical)
ColorWhite with black/red

What Does the Straight Ahead Only Mean?

This lane must go straight only. No turns are allowed.

About This Sign

This sign indicates the lane is designated for straight-through traffic only. Drivers must continue straight through the intersection.

Where you will see it

You see this sign at an intersection above or beside a lane that has been set aside for traffic going straight. It tells you which lane to be in before you reach the intersection.

What to do

  • Go straight through the intersection from this lane.
  • Do not turn left or right from it.
  • Move into a turning lane early if you need to turn instead.

A common mistake

Drivers sometimes sit in this lane and then turn at the last moment, cutting across others. If you want to turn, change lanes well before the intersection.

What to remember for the test

The single upward arrow is the clue: this lane is for straight traffic only, and no turns are allowed from it.

Other Regulatory Signs

Frequently Asked Questions

What does the Straight Ahead Only mean?

This lane must go straight only. No turns are allowed.

What shape and color is the Straight Ahead Only?

The Straight Ahead Only 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.