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Road Rules Foundation
Road Signs & Markings
Speed & Stopping Distances
Load Safety
Adverse Conditions
Four Categories, and How to Read a Sign's Shape
Every road sign in the official handbook falls into one of four categories:
- Regulatory signs — tell you what you must or must not do. Legally binding.
- Warning signs — alert you to a hazard or a change in the road ahead. Not an instruction; a heads-up.
- Information signs — tell you something useful about the road, such as whether it continues through or dead-ends.
- Guidance signs — help you navigate: directions, distances, lane assignments.
This lesson covers the first two, the categories carrying direct legal weight and the ones most heavily tested. The other two follow in the next lesson.
The habit worth building before any of the symbols: read the shape first.
- Triangle → warning
- Circle → an order (regulatory: both must and must not)
- Rectangle → informing
Why this matters more than it sounds: in poor light, at speed, or from a distance, you will register a sign's shape and colour a full second before you can resolve the symbol inside it. That second is free information, and it already tells you the most important thing — whether what is coming is a rule you must obey or a hazard you must judge.
Colour reinforces it. Red is restriction: a red border or red circle means something is prohibited or a hazard is flagged. Blue is instruction: a solid blue circle tells you what you must do rather than what you must not.
Key takeaways
- Four official categories: regulatory, warning, information, guidance — the first two carry direct legal weight
- Triangle warns, circle orders, rectangle informs — read the shape and colour before the symbol, because at distance you see them first
Quick check
You catch a glimpse of a rectangular blue sign too far off to read the symbol. What can you already tell about it?