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

  • Effective demarcation boosts traffic safety
    July 29, 2015
    Effective demarcation can play a crucial role in boosting safety for road users. Good demarcation is vital on a road network to help ensure that drivers stay in the correct lanes and are warned of changes that lie in their path, for example. Road markings are hugely important and for those involved in maintenance, ensuring that these are visible at night and in poor weather can help maximise safety. New technology is on the market now that can help road authorities ensure that road markings meet requirement
  • Giving four hours back to the day… and much more
    October 7, 2019
    A 20km long elevated expressway in Dhaka will be one of Bangladesh’s first Public Private Partnership transport projects – words and pictures by Ruby Kitching, on behalf of Mott MacDonald.
  • Workzone safety protects workforce and drivers
    May 3, 2012
    Highway construction work zones are dangerous places, and anything that can improve safety is welcomed as Patrick Smith reports. The safe and efficient flow of traffic through work zones is a major concern to transportation officials, industry, the public, businesses, and commercial motor carriers. This is the view of the US Federal Highway Administration (FHWA), which has developed the Highway Work Zone Safety Program to reduce the fatalities and injurious crashes in work zones, and to enhance traffic oper
  • Bridge of international accord from Russia-China
    May 29, 2018
    A new bridge project joining China and Russia is a sign of international accord between the two nations – Mike Woof writes A new bridge spanning what China calls the Heilongjiang River and which is known as the Amur River in Russia, is a clear sign of an important international accord between the two countries. Discussions over the bridge project were first started between China and Russia in the 1980s, with both nations seeing many changes in leadership since that time. But while the political discussion