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October 30, 2024
5 min to read
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Barrier gates are innovative solutions designed to enhance road safety and traffic management. These devices, installed in the median and connected to guardrails or New Jersey barriers, offer operational efficiency and rapid intervention in emergencies or maintenance needs. In this article, you will discover how barrier gates can improve safety and traffic management.
According to part 4 of the European standard ENV1317, a barrier gate is a “removable section of barrier”, meaning a device that provides containment performance and allows operators to remove and reinstall it for emergency reasons quickly.
Barrier gates are designed to ensure high performance in terms of safety and operability.
They are installed for two main reasons:
Thus, these openable devices are placed in the median and must be opened quickly (within 20 minutes). Generally, emergency gates require an opening of at least 3.5 meters. The opening time is not specified but is typically around 5 minutes. In Italy, according to D.M. 6792 of November 5, 2001, median barriers must be interrupted every 2 km to allow lane changes.
The benefits of installing barrier gates include:
Barrier gates undergo rigorous crash tests to ensure their effectiveness. They are available in various containment classes, the most common being H2 and H4, tested according to ENV 1317-4 or EN 1317-2 standards.
At this point, clarification is necessary, but let’s proceed step by step.
Containment classes determine which specific vehicles should be used, as indicated below:
Both impacts are performed with the vehicle at 20 degrees to the barrier’s axis.
The clarification concerns the impact point on the barrier. For example, when testing a barrier gate compliant with class H2, the standard establishes that a device with a length of 40 meters or less is a transition between two longitudinal barriers. Therefore, crash tests must be performed according to ENV 1317-4, considering the necessary length for its operation (Length of Need).
When the removable barrier section is longer than 40 meters, it should be considered a longitudinal barrier connected via a transition to other barriers. In this case, the impact points for TB11 and TB51 will be at 1/3 of the Length of Need. However, it must be highlighted that this requires demonstrating the behaviour of the transition element to the barrier.
This distinction is crucial when the designer must select the most appropriate device based on the installation length and the required performance.
Stargate: The Revolution in Road Safety
Stargate represents an innovation in road safety. Designed to offer maximum operability and rapid intervention, the Stargate barrier gate can be installed in the median and connected to guardrail or New Jersey barriers. This cutting-edge solution is ideal for efficiently and safely managing emergencies and road maintenance.
The device is compliant with class H2 in two different configurations:
This device is ideal for improving road safety due to its ability to seamlessly integrate with existing barriers and its ease of installation and removal. Stargate is a reliable solution for any traffic management need, ensuring a quick response in case of emergency and improving daily traffic management.
Its lightweight structure, consisting of 6-meter preassembled modules, helps quicken the installation procedure and reduce opening and handling times.
Titanus: Barrier Gate for Heavy Trucks
The H2 class gate is tested with a 13-ton bus and is generally connected in the central reserve to H4 class barriers, tested with 38-ton heavy trucks. For this reason, the gate is undersized compared to the safety needs of high-speed roads in many European countries.
The Titanus gate in class H4b offers maximum level protection, being the first barrier gate to contain the impact of heavy trucks. Delivered in easy-to-handle, installable, and removable modules, it features a reduced transversal encumbrance, quick opening with only two operators, and easy connection to various barriers.
Barrier gates are an indispensable solution for road safety, combining high containment performance with significant operational efficiency. Thanks to their ability to integrate with existing barriers and ease of installation and removal, these devices are ideal for ensuring safe and manageable traffic flow.
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