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

  • Innovation in asphalt paving solutions
    February 9, 2012
    This year has seen a wide array of innovative additions to the asphalt paving market - Mike Woof reports. The worldwide asphalt paving market is both competitive and complex, with an array of important players jostling for position. At the same time, paving controls have taken a great leap forward with the development of accurate 3D systems that can use a combination of laser and GPS positioning. Leica Geosystems, Topcon and Trimble have all introduced new packages for the asphalt paving sector and these
    Read More
  • Advances in asphalt compaction are delivering increased performance
    January 19, 2018
    Advances in asphalt compaction are offering improved performance right across the spectrum of size and capacity – Mike Woof writes. New asphalt compaction machines are offering major gains in performance as firms develop new systems. Large and small asphalt compactors now offer higher output than earlier generation machines, while delivering better quality and lower fuel consumption as well as gains in reliability, durability, safety, ergonomics and operator comfort.
    Read More
  • New additive boosts rubber-modified asphalt
    September 10, 2014
    Lehigh Technologies, which produces micronized rubber powders, has joined forces with additive specialist Rheopave to come up with a system which will improve the performance of asphalt, while reducing the cost compared to standard polymer modified asphalts. Rheopave had developed its X10 additive, a blend of reactive polymers and other elements, to work with Lehigh’s MicroDyne micronized rubber powder. It overcomes two problems currently experienced with rubber-modified asphalt, according to Lehigh’s direc
    Read More
  • Challenging Colombian tunnel completed
    May 30, 2024
    A tunnel stretch on Colombia’s Santa Fe - Cañasgordas highway is complete – Mauro Nogarin reports
    Read More

Highlighted Content