Two-Way Traffic Sign

Introduction

Not all roads have a median or divider. Some sections of highway or rural roads may support traffic traveling in both directions on the same stretch of pavement. The Two-Way Traffic Sign warns drivers that they are entering a roadway where opposing traffic flows are present. It’s a key part of Ontario G1 driving test sign knowledge and vital for safe navigation on undivided roads.

What Does the Two-Way Traffic Sign Mean?

This sign alerts drivers that both directions of traffic share the road ahead, often after exiting a divided highway. It features:

• Two black arrows—one pointing up, one pointing down

• A yellow diamond-shaped background, signaling caution

• No text, as the graphic representation is universally understood

It does not mean that the road is changing directions, but that traffic will be flowing both ways ahead.

Where Are Two-Way Traffic Signs Typically Placed?

You’ll see this sign in places where a divided or one-way roadway transitions to shared traffic, such as:

• End of divided highways or medians

• Bridge or tunnel entrances

• Temporary construction zones or detour routes

• Rural or low-traffic roads with one lane in each direction

• After intersections where one-way roads merge into a two-way zone

The sign is usually installed just before the two-way section begins.

How Should Drivers Respond to the Two-Way Traffic Sign?

When approaching this sign:

• Stay in your lane—never cross the centerline unless it’s safe and legal to do so

• Watch for oncoming traffic, especially at night or in bad weather

• Avoid overtaking unless the road is clearly marked for passing

• Use extra caution on curves, hills, or narrow lanes

• Ignoring this sign can lead to:

  • Head-on collisions

  • Lane discipline violations

  • Road test failure during the G1 exam

Visual Representation of the Sign

The sign shows a yellow diamond with two arrows—one pointing up and the other down—alongside a dashed centerline, indicating a shared roadway.

Conclusion

The Two-Way Traffic Sign helps ensure drivers adjust their awareness and positioning on roads with opposing traffic in close proximity. Recognizing and responding to this sign is critical for safe driving and a must-know for the Ontario G1 driving test.