Signs, signals and markings in Ontario
Signs, signals and road markings tell you what the law requires and what lies ahead. Ontario uses shapes and colours so you can recognize a sign before you can read it.
Signs are a large part of the knowledge test, and reading them early is a key road test skill.
By the end of this topic you can
- You can identify the main sign types by shape and colour.
- You can respond correctly to steady, flashing and arrow traffic signals.
- You can read yellow and white lane lines and know when passing is allowed.
- You can recognize a pedestrian crossover from its signs and markings.
What you need to know and understand
- A stop sign is eight-sided with a red background and white letters.
- A school zone sign is five-sided with a fluorescent yellow-green background.
- A yield sign is a triangle with a white background and red border.
- Warning signs are usually yellow diamonds; temporary condition signs are usually orange diamonds.
- Information and direction signs are usually green with white letters.
- Yellow lines separate opposite directions of traffic; white lines separate traffic going the same way.
- The orange triangle with a red border marks a slow-moving vehicle travelling at 40 km/h or less.
Reading a sign by its shape and colour
- Regulatory signs (usually white or black rectangles) must be obeyed. A green circle means the action is allowed; a red circle with a slash means it is not.
- Warning signs warn of curves, hills, crossings and similar hazards.
- Temporary condition signs mark road work, detours and traffic control people. Speeding fines double in a designated construction zone when workers are present.
- Information signs give destinations and services. Freeway exit numbers show distance in kilometres from where the freeway begins.
- A railway crossing sign is a white X with a red outline.
Lights with special meanings
- Flashing red light or beacon: come to a complete stop, then go when safe.
- Flashing yellow: drive with caution.
- Yellow arrow after a left-turn green arrow: do not start your turn; stop if you safely can.
- Transit priority signal (white vertical bar): yield so transit vehicles can go first.
- Pedestrian signals: a walking figure means pedestrians may cross; a flashing or steady hand means do not start crossing.
Lines and markings on the road
A solid line on the left of your lane means passing is unsafe; a broken line means you may pass when the way is clear. Wider, closer broken lines called continuity lines on your left mean your lane is ending or exiting. A pedestrian crossover is marked by double white parallel lines with an X in each approach lane, plus signs and overhead yellow lights. A bike box at an intersection is where cyclists wait; stop behind it, not in it. A sharrow (two chevrons above a bicycle) marks a lane shared with cyclists.
Our Ontario Traffic Signs and Pavement Markings guide has a fuller sign-by-sign study list.
Common mistakes
- Treating a flashing red like a yield. It always requires a full stop.
- Ignoring continuity lines and being forced to exit. Change lanes early if you need to continue.
- Stopping inside a bike box. Stop behind it at the stop line.
- Confusing orange and yellow diamonds. Orange means temporary work zone conditions.
Test yourself: Signs, signals and markings in Ontario
Answer each question, then read the explanation. Questions come in a random order each time.
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Sources: The Official Ministry of Transportation (MTO) Driver's Handbook, Ministry of Transportation Ontario (ontario.ca). Independent guide, not affiliated with any licensing agency. Always check the latest official rules with your province or territory.