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Are you a learner driver looking for more information about rumble devices? Or perhaps you're just a curious driver. It pays off to understand all the different safety features of the road are.
A rumble device alerts drivers to a hazard by providing both a visual and audible signal as well as through vibration which can be felt in the car and steering wheel.
These are usually rumble strips, which cause your car to vibrate as you drive over them.
Rumble strips are meant to provide a tactile warning before a junction, roundabout or bend in the road so that drivers can reduce their speed in good time.
Most commonly, the rumble device is a long series of raised lines on the road, which can really help drivers at night when visibility is limited.
In basic terms, they are used to alert drivers of any incoming hazards. The vibration can't be easily ignored that's why rumble strips are very effective at helping drivers who might not be paying close attention to their surroundings.
Rumble strips usually appear on roads in groups. The number of rumble strips in a group and the distance between groups depend on road conditions. Usually, there are 2 to 5 strips in a group.
According to the Highway Code, they are designed:
There are three main types of rumble device:
The rumble device can only communicate to drivers that they need to slow down. They are not a substitute for good driving. It cannot make up for bad speed limits, poor road design and traffic management, or the lack of enforcement in an area.
Rumble device is meant to reduce risk of an accident and help drivers be aware of the road ahead and any incoming, potentially, dangerous parts of the carriageway.
If you're wondering how effective they are, there hasn't been a lot of research aimed at this here in the UK. However, according to a study by the North Dakota Department of Transportation, during the trial period they saw a 33% decrease of frequency of crashes.
The fact is that rumblers are effective at slowing down vehicles on highways and other busy roads where traffic flow speeds tend to be faster. The faster the speed, the louder the noise and the stronger the vibrations of the car would be.
If you studying for your theory test, you should be prepared to know what the rumble device is, how it works, and what its purpose is.
The usual questions you may encounter in the test include:
If you've read this guide, you'd (hopefully) know the answers to the above questions! :)
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