A rumble strip doesn’t slow your vehicle down. It wakes up the person driving it. So how do rumble strips work, and would one suit your site? Perth business owners ask us whether rumble strips actually do the job or whether speed humps are the safer bet. The answer depends on what you need the driver to do.
Key Takeaways
- How do rumble strips work? They use noise and vibration to grab a driver’s attention, so they warn rather than slow a vehicle down.
- Road rumble strips (shoulder, centreline and transverse) are installed by road authorities. Private sites use surface-mounted rubber strips.
- Rumble strips don’t force a vehicle to slow down, so pair them with speed humps, signage or convex mirrors where you need a firm reduction in speed.
- Watch for noise near neighbours and the risk to cyclists before you choose a spot.
- Work out who uses the area and what you need (a warning, a physical slowdown or both) before you buy.
How Rumble Strips Work
A rumble strip is a row of raised bumps or cut grooves in a surface. When a tyre rolls over it, the driver hears a rumbling noise and feels vibration through the wheel, seat and floor. That hits two senses at once, and it happens without anyone needing to read a sign or process a message.
Road authorities call the highway version audio tactile line marking. Transport for NSW says it reduces the crashes it targets by 15-25% while Research on Albany Highway (Curtin University, 2011) found that a mix of sealed shoulders and audible edge lines cut casualty crashes by 80%. Fatigue and distraction are the main culprits on long country drives, and that’s exactly what these strips are built to catch.
Types of Rumble Strips: Road vs Surface-Mounted
The strips you see on a highway and the strips you’d fit in a car park aren’t the same product, and mixing them up leads to the wrong purchase.
Road rumble strips are installed by road authorities on public roads. There are three main layouts.
Shoulder Rumble Strips
Shoulder strips run along the road edge and warn drivers who drift towards it, which helps prevent run-off-road crashes.
Centreline Rumble Strips
Centreline strips run down the middle of the road to reduce head-on collisions.
Transverse Rumble Strips
Transverse strips run across the lane to flag a change ahead, such as a reduced speed zone. They’re hard to avoid and uncomfortable at speed.
Surface-Mounted Rubber Rumble Strips for Private Sites
Surface-mounted strips suit private sites. Our rubber rumble strips are made from recycled rubber and measure 500mm long, 100mm wide and 15mm high, in yellow or black. They fix down with masonry fixings or a suitable adhesive, which makes them practical for car parks, residential complexes and driveways.
Image Extra has supplied traffic calming equipment to Perth sites since 1994, and our installation service covers the Perth Metro area if you’d rather not fix them down yourself.
Rumble Strips vs Speed Humps and Speed Bumps
They do different jobs. Speed bumps are steep and slow vehicles abruptly, so they suit low-speed areas like car parks, where vehicles typically travel under 10km/h. Speed humps are broader and lower, so they slow vehicles gradually and suit residential streets and school zones. Rumble strips don’t force anyone to slow down. They warn, and the driver decides what to do next. For the full comparison, read our guide to the difference between speed humps and speed bumps.
Because the jobs differ, they often work best together. A rumble strip placed ahead of a speed hump gives drivers a heads-up before the physical slowdown arrives, which matters most on sites with forklifts or delivery trucks where drivers can’t afford to be on autopilot. If you’re weighing up rubber options, our article on the advantages of rubber speed humps is a good next read.
Pros and Cons of Rumble Strips
The Pros of Rumble Strips
- They cut through inattention. A driver who’s tired or distracted can ignore a sign, but it’s much harder to ignore a vibration through the seat.
- They support crash reduction. The research above shows they can make a real difference where drifting out of lane is the problem.
- They’re affordable. Compared with crash walls and guard rails, strips are a low-cost way to add a warning layer.
- They flag changing conditions. Placed across the lane, they tell drivers that something ahead is different, such as a pedestrian crossing or a work zone.
The Cons of Rumble Strips
- Noise for neighbours. The rumble that wakes a driver can also bother people nearby. Transport for NSW assesses noise when strips are planned within 200 metres of a home, and it’s a good habit to copy if your site backs onto houses.
- Risk for cyclists. A narrow bicycle tyre can catch on a raised strip and unsettle the rider, so think about where bikes travel on your site.
- No physical speed control. A strip alerts a driver but can’t enforce anything. If you need a firm reduction in speed, pair strips with humps, signage or convex mirrors at blind corners.
- Vehicle wear. A quick pass over a strip won’t do noticeable harm to tyres or suspension. Driving over them repeatedly at high speed is more likely to take a toll.
Is a Rumble Strip Right for Your Site?
Before you buy, run through these questions:
- Who uses the area: staff, customers, delivery drivers or all three?
- Are heavy vehicles such as forklifts operating nearby?
- Do pedestrians or cyclists cross the space?
- Will neighbours hear it?
- Do you need a warning, a physical slowdown or both?
If your answers point to a warning, rubber strips are a simple place to start. The rest of our vehicle and parking range covers wheel stops and bike racks, and our safety bollards help protect buildings and pedestrians.
Send us your site layout and our team will recommend the right mix of strips, humps and signage. Contact Image Extra or call 1300 366 999.
Rumble Strip FAQs
Do rumble strips slow vehicles down?
Not directly. Rumble strips use noise and vibration to alert the driver, who then chooses to slow down. Drivers often ease off because the strip is uncomfortable at speed, particularly when it runs across the lane. If you need a guaranteed reduction in speed, add a speed hump.
Can rumble strips damage your car?
A quick pass over a rumble strip won’t do noticeable harm to tyres or suspension. Driving over them repeatedly at high speed is more likely to take a toll.
Are rumble strips noisy for neighbours?
They can be. The rumble that alerts a driver carries beyond the car. Transport for NSW assesses noise when strips are planned within 200 metres of a home, so it’s worth considering where your strips sit if your site backs onto houses.
Are rumble strips safe for cyclists?
A narrow bicycle tyre can catch on a raised strip and unsettle the rider. Keep strips out of marked bike paths, or leave a clear gap for cyclists to pass through.
How much do rumble strips cost to install in Perth?
It depends on how many strips you need and how your surface is prepared. Send us your site layout and we’ll quote the strips and, if you want it, installation within Perth Metro.
Do I need council approval for rumble strips on private property?
Private sites usually follow different rules to public roads, but requirements vary by location, so check with your local council, strata or landlord before you start. Strips on a public road are installed by the road authority, not by business owners.