Gregory Industries rolls out Safety Roller Barrier in North America

Gregory Industries, based in the US state of Ohio, is now the exclusive North American distributor for the Safety Roller Barrier system. Gregory has opted to market the innovative South Korean roller barrier technology in North America, offering a novel solution for road safety. The SRB is a MASH TL-4 longitudinal barrier that works by absorbing and converting shock energy into rotational energy. Prime locations for installations are areas where vehicles are exposed to frequent accidents. SRB is highly visi
June 19, 2017 Read time: 2 mins
Rolling along: vehicle directional energy is transferred in rotational energy
Gregory Industries, based in the US state of Ohio, is now the exclusive North American distributor for the Safety Roller Barrier system


7823 Gregory has opted to market the innovative South Korean roller barrier technology in North America, offering a novel solution for road safety. The SRB is a MASH TL-4 longitudinal barrier that works by absorbing and converting shock energy into rotational energy. Prime locations for installations are areas where vehicles are exposed to frequent accidents.

SRB is highly visible with a noticeable colour and self-luminescence which alerts drivers – especially at night - to the danger of that particular curve or stretch of road. The system can be used as a median barrier or roadside barrier.

The SRB, manufactured by the South Korean company Evolution in Traffic Innovation, consists of rotating barrels made of ethylene-vinyl acetate that are aligned within a continuous metal frame. Ethylene-vinyl acetate has better shock absorption characteristics than rubber or urethane.

Upon impact by a vehicle, the barrels rotate to convert shock energy from the vehicle into rotational energy. This propels the vehicle forward back onto the road instead of crashing through the barrier or becoming entangled in a destroyed barrier system.

Importantly, with upper and lower frame sections, the guardrail can handles impacts from large and small vehicles.


Gregory launched the SRB into the North American market at the 2017 ATSSA Traffic Expo in Phoenix, Arizona, in February. The company said that it is working with several states to develop pilot projects and complete installations.

Gregory Industries is the exclusive North American distributor also for the Guardian 5 (G5) – MASH TL-5 longitudinal barrier system.

The strong and flexible MASH TL-5 longitudinal barrier is designed to safely capture and redirect a fully loaded 36,290kg vehicle. The company said that the G5 is a cost-effective and safer alternative to concrete barriers and is intended for use in areas of high congestion and median cross-over accidents.

Road Markings, Barriers & Workzone Protection

For more information on companies in this article

Related Content

  • Bridge engineering worldwide
    July 1, 2013
    Guy Woodford looks at vital bridge construction, repair and inspection projects in China, Europe, North America and Australia The Heron Road Bridge in Ottawa, Ontario in Canada is a vital link within the City’s transport network, as it crosses the Rideau River, which divides the east and west parts of the City. Constructed in 1966-1967, the Heron Road Bridge is approximately 275m long and includes six lanes.
    Read More
  • Major Necaxa-Tihuatlan Highway project for Mexico
    October 1, 2014
    A new highway in Mexico is connecting Necaxa with Tihuatlan and the project features challenging terrain - Mauro Nogarin reports In Mexico a landmark highway project is now close to completion, having set a number of records for Latin America.
    Read More
  • Innovative, efficient aggregate washing system
    February 22, 2012
    Cleaning the crushed and screened products can boost quality and revenue. Aggregate Processing Solutions has developed a novel washing system aimed at the quarrying sector. The APS-100AT has been developed after almost five years of research and development and is said to be an innovative multi-component material washing system, featuring a highly efficient, heavy duty linear multi-deck screen.
    Read More
  • PB designing infrastructure for connected vehicle project
    April 24, 2012
    Parsons Brinckerhoff (PB) has been selected to design and supervise deployment of technology infrastructure for a US Department of Transportation (US DoT) pilot programme to study the potential of operating connected vehicles on the streets and highways of Ann Arbor, Michigan. Called the Connected Vehicle Safety Pilot Model Deployment project, the $15 million research effort is being undertaken by the University of Michigan Transportation Research Institute (UMTRI) and its partners on behalf of the US DoT.
    Read More

Highlighted Content