Ontario G1 Road Signs Guide
The G1 knowledge test includes 20 road sign questions. Here’s every major sign type you need to know, with memory tips to help you remember.
Sign types at a glance
Shape and colour tell you the sign’s role: regulatory (must do / must not do), warning (hazard ahead), or guide (direction/info).
Regulatory signs
Regulatory signs tell you what you must or must not do. Shape and colour matter.
- Red circle with diagonal slash
Prohibited — the activity shown is not allowed.
Memory tip: Red circle + slash = don't do it.
- Green circle
Permitted or required — you may or must do what's inside.
Memory tip: Green circle = you may/must do what's inside.
- Stop sign (red octagon)
Come to a complete stop at the stop line or crosswalk. Wait until the way is clear before entering.
Memory tip: Full stop always — no rolling.
- Yield (white triangle, red border)
Slow down and give right-of-way to traffic or pedestrians when necessary.
Memory tip: Upside-down triangle = give way.
Warning signs
Yellow diamonds warn of hazards ahead. Look and prepare.
- Yellow diamond
General warning — hazard ahead (curve, intersection, etc.).
Memory tip: Yellow diamond = caution ahead.
- School zone (pentagon, fluorescent yellow-green)
School crossing or school area ahead — watch for children.
Memory tip: Pentagon + fluorescent = school / kids.
- Roundabout (circular arrows)
Roundabout ahead — reduce speed and yield as marked.
Memory tip: Round arrows = roundabout ahead.
- Chevron (arrowhead) signs
Follow the direction through a sharp curve.
Memory tip: Chevrons = follow the bend.
- Railway crossing (X / crossbuck)
Railway crossing ahead. Look, listen, and prepare to stop if needed.
Memory tip: X + red outline = railway crossing.
Parking and stopping
Don't confuse these — they have different rules.
- No Stopping
You may not stop your vehicle even for a moment.
Memory tip: No stopping = don't stop, period.
- No Standing
You may stop only to pick up or drop off passengers — not to wait or load goods.
Memory tip: Standing = passenger in/out only.
- No Parking
You may stop briefly to load/unload passengers or goods, but cannot leave the vehicle.
Memory tip: Parking = can't leave the vehicle.
- Accessible (wheelchair symbol)
Reserved for vehicles with a valid Accessible Parking Permit.
Memory tip: Wheelchair on sign = permit required.
Temporary / construction
Orange signs indicate work zones. Slow down and follow instructions.
- Orange background
Temporary condition — construction, detour, or work zone.
Memory tip: Orange = temporary / work zone.
- Checkerboard + sharp arrow
Sharp turn ahead — reduce speed and be careful.
Memory tip: Checkerboard + arrow = sharp turn.
Frequently asked
- How many road sign questions are on the G1 test?
- The Ontario G1 has 40 questions total: 20 on road signs and 20 on rules of the road. You need 16/20 in each section to pass.
- What shape is a school zone sign?
- School zone signs are pentagonal (five-sided) and often fluorescent yellow-green so they stand out near children.
- What's the difference between No Stopping and No Standing?
- No Stopping means you cannot stop at all, even briefly. No Standing allows a brief stop only to pick up or drop off passengers — not to wait or load goods.
Ready to practice?
Put what you learned into practice with a real mock test.
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