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

  • Kosovo's award-winning green highway construction
    March 20, 2012
    A new highway is proving an economic lifeline for the tiny country of Kosovo – Mike Woof reports. Road projects in Europe rarely meet such widespread public approval and support as the new Route 7 highway being built in the new Balkan state of Kosovo. The first sections of the new road opened to traffic in November 2011, with locals turning out in large numbers to celebrate the event. The official opening was carried out by the country’s prime minister Hashim Thaçi, president Atifete Jahjaga, and members of
    Read More
  • Turkmenistan’s new bridge features novel waterproofing
    November 8, 2017
    Turkmenistan’s new bridge is benefiting from a novel sealing system that will optimise working life as well as maximising safety. A novel waterproofing solution is being utilised for the Turkmenabat - Farap Bridge in Turkmenistan. The project is of note as the structure is the longest metal span bridge in Central Asia. The client for the project is the state-owned firm Turkmenavtohowayollary, while the general contractor is Altcom Road Construction and the consultant engineer is Soyuztransproekt. Stirling
    Read More
  • East End Crossing Project—Availability payment P3 in action
    July 14, 2017
    Indiana exercised its authority to use a P3 contract when it partnered with Kentucky for new bridges across the Ohio River. Barney Allison and John Smolen* explain the groundbreaking availability payment deal. Earlier this year, traffic began rolling over the new tolled Lewis and Clark Bridge spanning the Ohio River from northern Kentucky to southern Indiana. The cable-stayed bridge is part of the award-winning Ohio Bridges Project to untangle traffic within the greater metropolitan area of Louisville, Kent
    Read More
  • The drive for US road funding: will corporate America get a seat?
    September 13, 2017
    Trumponomics aims to use public money for pump-priming an even greater amount of cash from the private sector to improve America’s crumbling roads. But is political will matching corporate America’s enthusiasm for more private investment, asks David Arminas If there were ever a test case for comparing public-private partnerships and design-build contracts, the recently completed Ohio River Bridges Project is it (see previous article).
    Read More

Highlighted Content