How Do You Handle a Malfunctioning Traffic Light in Ontario?
When a traffic light is not working in Ontario, you must treat the intersection as a four-way stop. All drivers must come to a complete stop, then take turns proceeding in the order they arrived. This rule applies whether the light is dark, flickering, or showing a continuous flashing yellow or red.
Key Facts
- The vehicle that arrived and stopped first goes first
- If two vehicles arrive at the same time facing each other, the vehicle going straight has priority over the vehicle turning left
- If two vehicles arrive at the same time from perpendicular directions, the vehicle on the right goes first
- If more than two vehicles arrive simultaneously, use eye contact and gestures to communicate
In this article
Treat It as a Four-Way Stop
Ontario's Highway Traffic Act is clear: if a traffic light is not functioning, the intersection must be treated as a four-way stop. Every driver approaching from every direction must come to a complete stop before the intersection, yield appropriately, and proceed only when it is safe. This applies whether the light is completely dark (power outage) or malfunctioning in any way.
Four-Way Stop Priority Rules
Once stopped, the order of proceeding follows standard four-way stop rules.
- The vehicle that arrived and stopped first goes first
- If two vehicles arrive at the same time facing each other, the vehicle going straight has priority over the vehicle turning left
- If two vehicles arrive at the same time from perpendicular directions, the vehicle on the right goes first
- If more than two vehicles arrive simultaneously, use eye contact and gestures to communicate
Flashing Lights: What They Mean
A malfunctioning light that shows a continuous flash has specific meanings. A flashing red light means stop, yield, and proceed when safe (like a stop sign). A flashing yellow light means slow down, check for cross traffic, and proceed with caution. If the light is alternating or unclear, default to treating it as a four-way stop.
Common Mistakes at Malfunctioning Lights
Many drivers fail to come to a complete stop at a dark intersection, assuming they have the right of way based on where they normally would. This is incorrect and dangerous. A dark traffic light gives no one a default right of way. All four approaches are equal, just like a four-way stop. Police may be present to direct traffic at major intersections after power outages.
What This Means for New Drivers
Malfunctioning traffic lights appear occasionally in the G1 knowledge test and sometimes in G2 road test briefings. Knowing to default to four-way stop behaviour is one of those rules that can trip up new drivers who have only experienced normally functioning signals. Practice the four-way stop process until it is automatic.
Related Questions
How Do You Handle a Four-Way Stop in Ontario?
At a four-way stop in Ontario, come to a complete stop, then proceed in the order of arrival. If two vehicles arrive at the same time, the driver on the right goes first. If two vehicles are facing each other, the one going straight goes before the one turning left.
Read answerWhat Are the Right of Way Rules in Ontario?
Right of way in Ontario is determined by the type of intersection, who arrived first, and posted signals. At uncontrolled intersections, yield to the vehicle on your right. At four-way stops, the first to arrive goes first. Pedestrians in marked or unmarked crosswalks always have right of way.
Read answerWhat Is the Right of Way at an Uncontrolled Intersection in Ontario?
At an uncontrolled intersection in Ontario, you must yield to the vehicle that arrived first. If two vehicles arrive at the same time, you must yield to the vehicle on your right. These rules apply at intersections without traffic lights or stop signs.
Read answerReady to Start Driving?
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