
Imagine you come to a busy roadwork area and see a bright yellow prepare to stop sign. You know you need to slow down and get ready to stop for workers ahead. This traffic sign is very important for keeping everyone safe. If you are a traffic controller, site foreman, or roadwork professional, you use this sign to follow AS 1742.3 ルール. Putting the sign in the right place and making sure people can see it helps keep workers safe and control traffic well.
What is the Prepare to Stop Sign?

デザインと機能
You can spot the prepare to stop sign because it is bright yellow. It has big black letters that are easy to read. The road sign usually says “PREPARE TO STOP” so drivers know what to do. It can be a rectangle or a diamond shape. The shape depends on which road authority is in charge. The sign uses retroreflective sheeting to help drivers see it. This special material has tiny glass beads or microprisms. These reflect car headlights back to the driver. Microprismatic sheeting is brighter and lasts longer than old glass bead types. This helps you see the sign at night, in rain, or in fog. You can notice the sign before you get to the work zone.
ヒント: Signs with more retroreflectivity are easier to see. They help keep people safe when it is dark or the weather is bad.
Purpose in Work Zones
The prepare to stop sign helps keep workers and drivers safe. You will see it before you get to roadworks or lane closures. The sign tells you to slow down and get ready to stop. This warning gives you time to slow your car and watch for workers. You can also look out for traffic controllers or other dangers. Studies show that people slow down sooner when they see this sign. They also keep more space between cars. This helps stop sudden braking and lowers the chance of crashes near work zones.
- The sign helps you:
- Slow down before you reach the work area.
- Get ready for lane changes or stops.
- Watch out for workers and machines.
Regulatory Standards
Australian standards have rules for using the prepare to stop sign. You must follow these rules to keep everyone safe and obey the law. The main standards are:
オーストラリア標準 | Scope / Relevance to ‘Prepare to Stop’ サイン (W8-27) |
---|---|
として 1742.1:2014 | Lists traffic control devices like the W8 series. Tells you about sign sizes and when to use them. |
として 1742.2 | Talks about general traffic control devices. It mentions the prepare to stop sign. |
として 1742.3 | Focuses on traffic control for road works. It gives rules for using the sign in work zones. |
として 1743 | Gives design details for temporary signs. This includes the prepare to stop sign. |
You need to put the sign in the right place by following these rules. This helps avoid fines and keeps everyone on the road safe.
When to Use the Prepare to Stop Sign
Typical Scenarios
You will see the prepare to stop sign in many roadwork situations across Australia. This sign appears most often where active traffic control measures are in place. You might notice it when flaggers direct vehicles or when temporary traffic lights manage the flow. The sign warns you to slow down, stay alert, and get ready to stop if needed. You help keep traffic moving safely through or around construction zones when you follow this warning.
Common scenarios include:
- Approaching construction zones where workers operate close to moving traffic.
- Areas where traffic merges into a single lane due to roadworks.
- Locations with temporary traffic lights or flaggers controlling vehicle movement.
- Entry points to work zones with lane closures or changes in road layout.
注記: You should always look for the prepare to stop sign when you see other roadwork signs. It often comes before stop/go signs or traffic controllers.
法的要件
Australian law sets clear rules for using the prepare to stop sign. You must follow the standards in として 1742.3 to keep everyone safe and avoid penalties. The law says you need to use this sign when you expect drivers to stop or slow down near roadworks. You must place the sign at a distance that gives drivers enough time to react. The recommended range is usually between 50 そして 250 metres before the hazard. You should adjust this distance based on the speed limit and how well drivers can see the sign.
制限速度 (km/h) | Recommended Distance Before Hazard (メーター) |
---|---|
40 | 50–100 |
60 | 100–200 |
80+ | 200–250 |
You must make sure the sign is easy to see. Retroreflective materials help drivers spot the sign at night or in poor weather. You should remove the sign when it is not needed to avoid confusion.
Risks of Incorrect Use
If you use the prepare to stop sign incorrectly, you put workers and drivers at risk. Drivers may not slow down in time. Sudden stops can cause crashes or near misses. Workers may face danger from vehicles that do not stop as expected. You could also face fines or legal action if you do not follow the rules.
Risks include:
- Reduced safety for workers and road users.
- Increased chance of rear-end collisions.
- Confusion for drivers if signs are left out when not needed.
- Legal penalties for not following AS 1742.3 基準.
ヒント: Always check your traffic management plan. Make sure you use the prepare to stop sign only when needed and place it where drivers can see it clearly.
Where to Place the Prepare to Stop Sign
Placement Distances
You need to place the prepare to stop sign at a distance that gives drivers enough time to see, understand, and react safely. The recommended range is usually between 50 そして 250 metres before the hazard. You should adjust this distance based on the speed limit and how well drivers can see the sign. On roads with higher speed limits, you must place the sign further away because drivers need more time to slow down. In urban areas with lower speeds, you can place the sign closer to the work zone.
The distance also depends on visibility. If the road has curves, hills, or objects that block the view, you should move the sign closer so drivers do not miss it. You must use your judgement and follow local rules to decide the best spot. Signs with more words or smaller letters need extra distance so drivers can read them easily.
制限速度 (km/h) | Recommended Distance Before Hazard (メーター) |
---|---|
40 | 50–100 |
60 | 100–200 |
80+ | 200–250 |
ヒント: Always check for clear sight lines. Make sure nothing blocks the sign from a driver’s view.
Visibility and Clarity
You must make sure the prepare to stop sign is easy to see and understand. Bright colours and retroreflective materials help drivers spot the sign in daylight, at night, or in bad weather. Signs should use clear language and simple symbols so drivers know what to do. You should mount the sign at least 1.5 metres high in rural areas and 2 metres high in urban or highway settings. This keeps the sign above cars and makes it easy to see.
- Use retroreflective coatings to bounce light back to drivers.
- Keep the sign clean and free from dirt or damage.
- Place the sign where trees, poles, or parked vehicles do not block it.
- Arrange signs in a logical order so drivers can follow the warnings step by step.
- Use secure bases to stop the sign from falling or moving in wind or traffic.
You can add flashing lights or LED borders to improve visibility in poor weather or at night. Regular checks help you spot faded or damaged signs. Replace them quickly to keep the warning clear.
Removal When Not in Use
You should remove the prepare to stop sign when it is not needed. Leaving the sign out after work finishes can confuse drivers and reduce trust in road signs. Always check your traffic management plan and take down signs that no longer apply. This keeps the road safe and helps drivers know when to expect changes.
- Remove or cover signs when work is not happening.
- Store signs safely to prevent damage.
- Inspect signs before putting them back out.
注記: Signs that are not in use should never stay on display. This simple step helps prevent driver confusion and keeps everyone safe.
Best Practices for the Prepare to Stop Sign

Compliance with AS 1742.3
You must follow AS 1742.3 when you use the prepare to stop sign. This standard says the sign is an advance warning sign. You need to place it far enough ahead of the work zone so drivers have time to react. Always mount the sign at driver eye level, between 1.0 そして 1.5 地上のメートル. Use a yellow background with black text. Make sure the sign stays upright and steady by using heavy bases or sandbags. Cover any permanent signs that might confuse drivers. Remove the prepare to stop sign as soon as the work finishes. These steps help protect everyone on the road and keep you within the law.
ヒント: Regular checks and quick replacement of damaged signs keep your site safe and compliant.
Maintenance and Inspection
You should inspect your signs often. ダメージを探してください, フェード, or dirt that might make the sign hard to read. Clean the sign with soft brushes and non-abrasive cleaners. Cut back any plants or trees that block the sign. Tighten all fasteners to stop theft or movement. Replace any sign that loses its reflective shine or gets damaged. Check the sign at night with a torch or spotlight to make sure it is visible. Keep a record of each sign, including where and when you installed it and when you last checked it.
- Inspect for damage and legibility.
- Clean with care to protect reflective surfaces.
- Remove any obstructions.
- Check fasteners and replace faded signs.
- Review after storms or every year.
Coordination with Other Signs
You should use the prepare to stop sign with other roadwork signs. Place it before signs like “Traffic Controller Ahead”, speed limit changes, または “Stop/Go” paddles. In Queensland and South Australia, you may see extra signs or flashing lights to warn drivers. Use reflective or illuminated signs at night or in bad weather. These signs help drivers see warnings and directions, even in low light. オーストラリアで, you use advance warning signs more than in the US, where flaggers and stop/go paddles are common. Reflective and illuminated signs help guide drivers safely and reduce accidents in work zones.
注記: Always match your signs to local rules and conditions for the best safety results.
The prepare to stop sign plays a vital role in keeping work zones safe and compliant with AS 1742.3. When you place this traffic control sign correctly and keep it visible, you help reduce crashes by up to 30%. Always check your traffic management plan, maintain your signs, and follow best practices. For expert advice or to find compliant signage, reach out to a trusted supplier.
よくある質問
What does the “停止する準備をします” sign mean?
You see this sign when you approach roadworks. It tells you to slow down and get ready to stop. Workers or traffic controllers may need you to stop for safety.
When should you remove the “停止する準備をします” サイン?
You must remove the sign as soon as work finishes or when stopping is no longer needed. Leaving it out can confuse drivers and reduce trust in road signs.
How far before a hazard should you place the sign?
You should place the sign 50–250 metres before the hazard. The exact distance depends on the speed limit and how well drivers can see the sign.
Why is retroreflective material important for this sign?
Retroreflective material helps drivers see the sign at night or in poor weather. It reflects headlights, making the warning clear and easy to spot.
Can you use the “停止する準備をします” sign with other roadwork signs?
はい, you should use it with signs like “Traffic Controller Ahead” または “Stop/Go“. This helps drivers understand what to expect and keeps everyone safe.