Speed Bumps

speed bumps rubber speed humps

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Speed Bumps and Speed Humps have the same meaning and are used to slow traffic down. Choose speed humps for cars or HGVs, residential areas, or freight depots. Our speed humps offer super quick install and sections are easy to replace when needed. Talk to our experts, whether you need a sleeping policeman, a speed cushion to reduce speeds in urban areas or a speed ramp to slow cars and HGVs.

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Speed bumps help to reduce the speed of cars, trucks, and vans on roads which greatly reduces traffic accidents. Driving over the bumps too fast will result in a hard, uncomfortable drive.

How to choose the right speed bump

To choose the right speed bump you need to consider:

  • The kind of vehicles that will be travelling over the speed bump? Will it need to cater for trucks, buses, or just cars? Do emergency vehicles use the road regularly, and if so, can they pass over the speed bump with little or no restriction to their speed. Different vehicles have different requirements, so make sure you know which vehicles are on the road.

  • What is the ideal speed for traffic in the area? The height and width of the speed bump will have a significant difference in the impact to speed. For example, a 30mm speed bump generally allows vehicles to pass over the ramp at 15mph in comfort, while a 75mm ramp will reduce vehicle speeds dramatically and should only be used where there is a significant risk to pedestrians.

  • What type of road surface is the speed bump being installed on? The road surface may affect the fixings you will use for your speed bump. Concrete and asphalt roads may need different fixings, while some suppliers (including Pittman) use universal fixtures to suit the majority of road surfaces.

Types of Speed Bumps

Speed Bumps

Immediate bump used to slow vehicle or HGV traffic. Ranges from 30mm to 75mm high. Causes an immediate bump to encourage drivers to slow down. Driving over a speed bump too fast will result in an uncomfortable drive for drivers. Severe speeding may also damage the car.

Speed Cushions

A less severe bump that is used to slow vehicles to a reasonable speed bump keep traffic flowing. Generally installed with gaps in between to allow larger emergency vehicle axles to get around the cushions without hindering response times. Typically used in urban settings.

Speed Tables

The largest speed bump option from front to back. The "table" style layout provides an excellent traffic calming option for cities or towns. The design provides a very gentle bump which encourages drivers to slow down to reasonable speeds. However, the speed table will allow general traffic to flow, only slowing vehicles on approach to pedestrian crossings. The speed table itself is also often used as a pedestrian crossing for public spaces.

Kerb Ramps

Kerb ramps are installed against kerbs to provide easier access for cars. Kerb ramps are commonly installed where the kerbs are too high for cars to gain access. The ramps can be used permanently or temporarily as needed.

For a quick guide on choosing the right speed bump see a few choices here: 

  • JSP Ridgeback Speed Bump Kit 50mm – slows traffic to approximately 10mph, ideal for cars and light vehicle use
  • JSP Ridgeback Speed Bump Kit 75mm – slows traffic to approximately 5mph, ideal for cars and HGVs. Use where there is an immediate danger to pedestrians.
  • XPT Berlin Speed Cushion – Slows traffic to approximately 20mph, suitable for cars and HGVs. Ideal for towns and cities where traffic needs to flow. Allows emergency vehicles to pass through largely unhindered due to the shape and profile. 
  • XPT-Modular System Speed Table – slows traffic to approximately 20mph, gradual bump instead of a sharp, immediate bump. Allows city traffic to maintain a steady flow, doesn’t slow vehicles to a near-stop. Speed tables are often used to form a pedestrian crossing.

What are the advantages of modular rubber speed bumps?

There are many advantages to installing modular rubber speed bumps:

  • Precise moulding of sections provides a uniform height and design of the bump
  • More cost-effective in terms of labour and materials
  • Easier installation than concrete or tarmac speed bumps
  • Easier to replace sections if they become damaged or worn
  • Less disruptive to the area during install – can be used immediately
  • Better visibility than most concrete or tarmac versions
  • Manufactured from recycled material

How are speed bumps installed?

To install speed bumps you will need precise measurements of the area and the speed bump suited to the area. The modular sections allow for fast installation on site. 

To install simply mark the area for each section (using the pre-drilled holes) and drill the required depth for the fixing. Insert the required piece (end-cap or mid-section) and tighten it into place. Once installed, the speed bumps can be used immediately. Ensure all works are completed following safety guidelines.

speed humps

What is the lifespan of rubber speed bumps?

When installed correctly rubber speed bumps can last for many years at a time. Their lifespan depends on the installation and the type & volume of traffic on the road. Call the team at Pittman to help choose the best speed bump for the job.

Rubber can maintain better shape than concrete over time. Modular sections are also easily replaced if they become worn or damaged. If installing multiple speed bumps it is advised that the layout includes at least one vehicle’s length between them.

rubber speed bumps

How fast can you drive over a speed bump?

The height and width of the speed bump will determine how fast you can drive over a speed bump. A 50mm bump will slow vehicles to approximately 10mph. A higher 75mm bump will cause drivers to slow to approximately 5mph. A speed cushion can offer an easier, more gradual bump – they generally slow traffic to 15-20 mph. These kinds of bumps are better suited to city and town environments. 

What is the difference between speed bumps and speed humps?

Speed Bumps:

  • Abrupt bump designed to slow traffic down instantly
  • Effective for controlling speeds at low traffic volumes
  • Shorter from front to back
  • Not ideal for emergency vehicles and coaches

Speed Humps:

  • Gradual bump designed to slow traffic to a considerable speed
  • Effective for controlling speeds at high traffic volumes
  • Longer from front to back
  • Ideal for emergency vehicles and coaches

What is a sleeping policeman?

A sleeping policeman is a common name for a speed bump or speed hump within the UK. As the bump helps to control traffic speed it is compared to the job of a policeman. The ‘sleeping’ part is related to the bump lying across the road. 
Other names for sleeping policeman are speed ramps, speed humps, judder bars, and lying-down policeman. 

What is traffic calming?

Traffic calming is a popular term for speed control. Traffic calming refers to the reduction of vehicle speed. Speed bumps, speed humps, and speed cushions are all considered a key part of traffic calming.

Traffic calming is a common term used among government bodies and councils. The aim of traffic calming is to decrease vehicle speeds to reduce the risk of traffic accidents. This involves vehicles, cyclists and pedestrians.

speed bump uk

Speed bump sign requirements

Speed bump signs should be used with all speed bump setups. The signs give a clear indication to drivers that bumps are in place and that they should slow down accordingly. These signs may also be combined with speed signs or road markings in order to make the message very clear to drivers.

Typical speed bumps signs will include a speed bump symbol and text. The text may read "ramps ahead" or "speed bumps ahead". The standard UK design for a speed hump sign is a triangular format with a black bump symbol, white background and red outline.

Any speed bump signage should be installed in a place where it will be easily seen by drivers. Standard installation includes mounting to nearby sign poles. Wall-mounted signs could also be used depending on the area.

JSP Ridgeback Speed Bumps for faster installation and increased visibility

The JSP range of Ridgeback Speed Bumps offers an excellent traffic calming method for roads and car parks. They come with many benefits including -

  • Thermoplastic yellow markings for increased reflectivity from vehicle headlights
  • Simple installation with only one mid-section and one end-cap type
  • Interlocking systems built into every section - no additional connectors required
  • Integral cable channel that runs underneath the ramp - protect hoses and cables from damage
  • Available in a 50mm high design for regular traffic or 75mm high for areas with immediate danger to pedestrians

Download the JSP Ridgeback brochure today for more information on high-quality traffic calming.

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