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.

Road Markings, Barriers & Workzone Protection

Related Content

  • Benninghoven’s ‘silent’ mastic plant in demand for city centres
    April 12, 2016
    Benninghoven has developed and patented a new system for its mastic asphalt plants which significantly reduces the noise they produce: less than 70dB compared to 100dB normally. The company has sold six of the new GKL Silent machines already to companies in France, Hungary and Norway - all for city centre projects.
    Read More
  • Repairing concrete roads using new technology
    July 28, 2015
    In the US state of Arkansas, a key stretch of concrete roads has been improved, allowing it to cope with current traffic volumes.
    Read More
  • The A14 Cambridge to Huntingdon improvement scheme takes shape
    May 31, 2017
    Highways England’s project manager gives sneak peek into progress on the UK’s biggest road upgrade now under construction. Road construction workers often find interesting buried items when building roads and the UK’s A14 Cambridge to Huntingdon improvement scheme is proving the point. It’s been less than half a year since construction started on the €1.76 billion A14 scheme, Highways England’s largest ongoing project. Highways England is the wholly government-owned company responsible for modernising, main
    Read More
  • Circuit of the Americas Formula for F1 success
    April 4, 2013
    In November 2012, the new Circuit of the Americas (COTA) in Austin, Texas, hosted the first ever Formula 1 US Grand Prix on a purpose-built track. But, as Jeff Winke and Guy Woodford report, the construction of COTA was just as demanding as competing in an F1 race itself For COTA construction contractor Austin Bridge & Road, L.P., nothing was more vital to the successful building of the 5.5km F1 track than meeting the strict criteria for its asphalt-paved surface. “The amount of stress this pavement will un
    Read More

Highlighted Content