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

  • DynaRoads’s DynaWall raises the moveable barrier game
    July 5, 2016
    DynaWall’s main application is for use during road construction where it can assist in traffic management by shifting traffic lane barriers. The system can move up to 1,000m of safety barriers within minutes without the need of heavy-duty equipment. The system’s manufacturer, Swiss company DynaRoads, does not make the barriers. But the system is designed to be flexible enough to be used with the majority of barrier types, says Cindy Duerst, who handles international sales. The method to move the wall – any
    Read More
  • Asphalt paving advances available
    June 24, 2024
    Several of the key manufacturers are introducing new developments for the US asphalt paving market with vibration only screeds – Mike Woof writes
    Read More
  • Bridge work is no problem for Terex concrete paver Bid-Well 3600
    May 30, 2018
    Terex says that its Bid-Well 3600 automatic paver roller is flexible enough to deliver high-quality paving for both slab-on-grade and bridge applications. Meeting a variety of inline paving and skewed bridge designs, the 3600 paver offers standard paving width configurations from 2.4-26.2m with on-the-fly paving widths changes of up to 9.1m. It quickly adapts to the contractor’s bridge deck placement and slab-on-grade paving needs. Kraemer North America recently used an MLC300 to help replace an 84-ye
    Read More
  • Not gone in 60 seconds
    June 10, 2019
    Our Skidmarks page is highly rated by readers. Your input could help make this page even more entertaining. If you come across any amusing road-related stories or pictures email me at [email protected] NOT GONE IN 60 SECONDS A bungling young car thief in Norway found one vehicle too tempting, and also too difficult for his (lack of) skills. The man managed to break into a Volvo saloon but then discovered to his horror that not only was he unable to start it, he was also unable to get out of it. The car
    Read More

Highlighted Content