Skip to main content

TransCalm is full of air

TransCalm is a stand-alone bolt-down speed hump designed to persuade drivers to comply with the limit in 32kph zones and described as a ‘responsive speed control’ by its manufacturer Mallatite. The TransCalm is constructed from a rubber compound containing a pneumatic cylinder, fitted with a patented valve that operates at a preset safe speed. The valve is open for drivers under normal safe use, allowing the cylinder to deflate to around 45mm, reducing the firmness of the unit. If the safe speed is exceede
August 14, 2017 Read time: 2 mins
TransCalm is a stand-alone bolt-down speed hump designed to persuade drivers to comply with the limit in 32kph zones and described as a ‘responsive speed control’ by its manufacturer Mallatite.


The TransCalm is constructed from a rubber compound containing a pneumatic cylinder, fitted with a patented valve that operates at a preset safe speed. The valve is open for drivers under normal safe use, allowing the cylinder to deflate to around 45mm, reducing the firmness of the unit. If the safe speed is exceeded, the valve closes, retaining air in the cylinder, creating a 70mm hump so that the vehicle occupants experience progressive discomfort in proportion to the speed of the vehicle passing over the unit.

TransCalm comes in 3.3m strips to cover a full lane width and weighs around 130kg. With a total width of 900mm, the TransCalm hump is also said to generate less noise when a vehicle rolls over it than other traditional asphalt or rubber bolt-down equivalents.

Markings are reflective to suit traffic direction.

Related Content

  • A new event is preparing the asphalt industry for tomorrow’s world
    September 11, 2018
    An inaugural event for the European bitumen industry urged attendees to look to the future - Kristina Smith reports What will tomorrow’s roads look like? Will lanes be narrower, will the road charge vehicles as they drive on them, will they collect data, will they be self-cleaning and de-polluting? All these questions and more were pondered at a two-day conference in Berlin, entitled ‘Preparing the asphalt industry for the future’. It was the first such event for Eurasphalt & Eurobitume (E&E), and set a
  • Without political intervention, new technologies for using waste rubber in roads will not take off
    November 14, 2017
    New technologies to make rubber modification of asphalt are under development and testing. But political will is the real key to diverting old tyres from landfill - Kristina Smith reports. A new way to introduce end-of-life tyre rubber into asphalt mixes could be the key to diverting more tyres away from landfill, according to Dr Davide Lo Presti, principal research fellow at the Nottingham Transportation Engineering Centre (NTEC) at the University of Nottingham.
  • Concrete paving meets demanding airport conditions
    July 11, 2012
    High speed, high quality concrete paving can be achieved in the demanding airport environment using the latest equipment. Minnich Manufacturing has developed a novel dowel pin drilling machine and has successfully tested this equipment at Tyndall Air Force Base in Panama City, Florida. The A-5SCW is a self-propelled, cantilevered machine that features a wireless remote control and is designed to install five dowel pins simultaneously. The control system has been developed by Wisconsin Kar-Tech and uses prov
  • Innovative testing boosts pavement quality
    February 16, 2012
    Innovative materials testing technology will allow the road sector to boost pavement quality, Mike Woof and Patrick Smith report. With billions being spent on highway construction worldwide, governments are looking to make sure their investments last as long as possible.