Different Types of Crash Barriers and Their Uses

Crash barriers play an important role in road safety and protect vehicles from going off the road, getting hit by heavy obstacles, or coming in between moving traffic. These barriers are mainly installed on highways, bridges, medians, and blind curves to minimise the impact of vehicles hitting each other and minimise injuries. In this blog, we discuss different types of crash barriers and their uses.



1. W-Beam Crash Barriers

One of the most commonly used barriers throughout the world. Developed from galvanised steel, these barriers have a wave-shaped beam mounted on a strong post. The W-beam crash barrier is made of galvanised steel and features a wave-shaped beam mounted on strong posts. These barriers are designed to absorb the pressure of vehicles after hitting each other and redirect them back onto the road during a collision. W-beam barriers are best suitable for highways, expressways, and roadside applications due to their durability and cost-effectiveness.

2. Thrie-Beam Crash Barriers

At first instance, thrie-beam barriers look like W-beam barriers but have an additional wave, which makes them more strong and more suitable for high-impact areas. They are capable of providing enhanced resistance against heavy vehicles and are commonly installed at places with steep slopes or bridges where higher containment is required.

3. Concrete Barriers

Also known as Jersey barriers, concrete crash barriers are widely used for diversions or making divisions on a road, and at construction zones. These barriers are mainly effective in stopping vehicles and protecting them from hitting each other. Due to their strong structure, they are best suitable for areas where vehicle redirection is not essential, and stopping the vehicle is a priority.

4. Wire Rope Safety Barriers (WRSB)

Wire rope barriers are developed from high-tensile steel cables mounted on pillars or walls or on strong bases. These barriers flex upon impact, minimising the speed of vehicles and reducing the severity of injuries in accidents. They are normally installed in medians of highways and require less space than other types of barriers.

5. Crash Cushions (Impact Attenuators)

Crash cushions are designed to absorb energy and stop the vehicle after a collision. They are normally installed in front of fixed objects like toll booths, bridge piers, or exit ramps. These barriers are developed to reduce the severity of crashes without causing a rebound effect.

Conclusion

Each crash barrier is suitable for a particular situation based on traffic conditions, vehicle types, and the level of risk involved. Whether it's the flexible wire rope barrier for highway medians or strong concrete barriers for construction sites, these safety measures play an important role in controlling severe road accidents and ensuring safer journeys for all road users.

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