Stop Sign: A junction where you must stop. — Stop (Priority sign (category B))

Stop Sign: meaning and what to do

Quick answer:A junction where you must stop. Stop completely at the line, give way, and go only when it’s safe.

The stop sign is the only road sign shaped as an octagon. It is red with a white border and the word STOP, and it means you must bring your vehicle to a complete stop at the stop line every time, then give way to traffic and pedestrians before moving on. It is used where drivers cannot see enough of the main road to judge it while moving.

What to do when you see this sign

Stop completely at the line, give way, and go only when it’s safe.

Good to know: Red octagon almost everywhere; Japan uses a red inverted triangle.

What kind of sign is it?

Priority sign (category B). Priority signs tell you who goes first at a junction or narrow section. Stop and give way have unique shapes so you can recognise them even from behind.

Learn how to read every sign family by shape and colour in road signs and their meanings.

Questions about this sign

What does a stop sign mean?

You must bring your vehicle to a complete stop at the stop line, give way to traffic and pedestrians, and only move on when it's safe. It's an order, not advice.

What is the purpose of a stop sign?

To control junctions where slowing down isn't enough, usually because visibility is poor or the junction is busy or has a crash history. It also makes clear who has priority.

Why are stop signs red?

Red already meant danger or stop on railway signals and traffic lights. US stop signs were yellow from 1924 to 1954 because red paint faded too quickly. Once fade-resistant red finishes existed, red became the standard.

Why are stop signs octagonal?

The octagon is reserved for stop signs, so you can recognise one from its shape alone: from behind, in poor light, or when it's covered in snow or dirt.

What shape is a stop sign?

A regular octagon, with eight equal sides. In Japan the stop sign is a red inverted triangle instead.