Skip to main content

REBLOC H4b Gantry: milestone in safety

The slim profile of the H4b Highway Gantry means it excels in congested areas where there is heavy traffic but little land for traditional gantry systems.
By David Arminas April 9, 2024 Read time: 2 mins
REBLOC’s integrated system provides a double-sided H4b safety barrier that acts as foundation for the base pole of the gantry system (image courtesy REBLOC)

REBLOC reports that it has unveiled the world's first H4b-tested highway gantry system, a pioneering breakthrough in road safety.

The company says that its new system revolutionises the conventional approach of a cast-in-place foundation that includes the base pole and safety barriers on both sides.

REBLOC’s integrated system provides a double-sided H4b safety barrier that acts as foundation for the base pole of the gantry system. Rigorous H4b testing of the complete system has shown exceptional stability, making it ideal for central reservations to ensure superior safety.

The system comprises three precast concrete barriers. The two outer barriers flank the central barrier housing the integrated foundation and base pole. EN-1317 compliant testing ensures reliability upon vehicle impact.

Additional installations including light poles or traffic signs can be easily incorporated on top of the certified system. The precast concrete elements are securely anchored to an embedding depth of only 200mm. An inspection access simplifies electric cabling. All three elements are firmly connected using steel plates on top of the barriers.

REBLOC says that the system's no-deflection performance in H4b testing means that it is suitable for central reservation use on highways with high speed limits. But there are many other key features, such as the design itself – it optimises space and aesthetics as well as eliminates the need for separate structures.

As well, the slim profile - less than 1m wide at its widest point - means it excels in congested areas where there is heavy traffic but little land for traditional gantry systems.

For more information on companies in this article

Related Content

  • Steel barrier innovation boosts roadway safety
    December 3, 2014
    New developments in road equipment systems are the product of innovation in engineering and are helping boost safety. Despite an improvement in road safety over recent years, road accidents and their consequences remain a serious social problem. To limit the potential of accidents, the performance of road equipment such as safety barriers and lighting poles are defined by European standards (EN1317 and EN 12767). As CE-Marking to these standards is now based on performance requirements and not on national h
  • Bridge and tunnel concrete testing vital for longevity
    July 9, 2012
    Modern technology is making testing more efficient and reliable, increasing productivity and reducing costs, as Patrick Smith reports A few years ago, visual inspection of an 18-year-old bridge by ARRB in Australia identified considerable cracking in the precast, prestressed deck planks as well as in the cast in situ deck overlay. Laboratory examination indicated that the deck planks and the deck overlay were suffering from a strong case of alkali-aggregate reaction (AAR). Testing of concrete cores drilled
  • Worldwide action call on TRB barrier resolution
    February 16, 2012
    Highway authorities worldwide are being asked to take action on a Transportation Research Board (TRB) committee resolution.
  • Caterpillar 318D L Series 2 hydraulic excavator
    April 23, 2013
    The new Caterpillar 318D L Series 2 excavator is said to include powerful hydraulics, a heavy-duty front end and enhanced operator comfort. Fitted with an economical Tier 2/Stage II compliant engine, the 318D L Series 2 model is also described as easy-to-service and capable of high production with low fuel consumption. With a net power rating of 82kW and operating weights to 17.3tonnes, the new model provides a choice of a boom and two sticks to best fit its application. As well as offering a high level of