Y-Intersection Sign
The Y-intersection sign warns that the road ahead splits into two branches or that two roads merge at a Y angle. Drivers must slow down and be prepared for an unusual road configuration.
Last updated: April 4, 2026
A Y-intersection is an irregular junction where roads meet at acute angles rather than the standard 90-degree T or four-way layout. The sign warns of the upcoming unusual geometry so drivers have time to assess the situation. Right-of-way at Y-intersections is determined by stop or yield signs at the junction, not by the road shape alone.
Quick Facts
Type
Warning Sign
Shape
Diamond
Colours
Yellow background with black Y symbol
In this guide
What does the Y-Intersection Sign mean?
A Y-intersection is an irregular junction where roads meet at acute angles rather than the standard 90-degree T or four-way layout. The sign warns of the upcoming unusual geometry so drivers have time to assess the situation. Right-of-way at Y-intersections is determined by stop or yield signs at the junction, not by the road shape alone.
What to do when you see it
Reduce speed and be alert to the road configuration ahead. Identify the correct branch for your destination before reaching the split. Yield or stop as required by any control signs at the junction. Use turn signals to indicate your intended direction to other drivers.
Where you'll see it in Ontario
Y-intersections are found on older roads that pre-date modern grid planning, in rural areas where roads follow natural terrain, and at highway interchange merge points. They are less common in urban areas but appear near industrial areas and in older neighbourhoods.
G1 test relevance
The G1 test may include a Y-intersection scenario asking how right-of-way is determined. The answer is that right-of-way is assigned by stop and yield signs, just as at any other intersection type.
Common mistakes drivers make
Taking the wrong branch at a Y-intersection is a common navigational error, especially at night. Another mistake is entering too fast without being able to see which branch the road curves toward.
Related Signs
T-Intersection Sign
The T-intersection sign warns that the road you are on ends at a T-junction ahead. You will be required to turn left or right and must yield to cross traffic.
Learn moreIntersection Ahead Sign
The intersection ahead sign warns that a cross street or side road is coming up. It is placed where the intersection is not clearly visible in advance, such as on a hill or after a curve.
Learn moreYield Sign
The yield sign is a downward-pointing triangle that requires drivers to slow down and give the right-of-way to traffic already in the intersection or roadway. You must stop if necessary, but you do not have to stop if the way is clear.
Learn moreCurve Ahead Sign
The curve ahead sign warns drivers of a gradual curve in the road ahead. Drivers should reduce speed before entering the curve, not during it, to maintain control and stay in their lane.
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