Centre for Road Safety

Reducing crash severity

Road safety barriers are used on many roads in NSW as one method of reducing the severity of crashes. All the barriers are built to meet Australian/New Zealand standard AS/NZ 3845 ‘Road Safety Barrier Systems’ and can be classified as either flexible, semi-rigid or rigid barriers.

Types of road safety barriers used in NSW:

  • Wire rope safety barriers are flexible and made of wire ropes supported by posts that are designed to break when struck by a vehicle
  • Steel W-beam safety barriers are semi-rigid and made of steel rails mounted on posts that are designed to break when struck by a vehicle
  • Concrete safety barriers are rigid and made of concrete and mortar

Safety barriers in action

Wire rope barriers

Watch a video of wire rope barriers being tested or read a transcript.

Steel W-beam barriers

Watch a video of steel W-beam barriers being tested or read a transcript.

Concrete barriers

Watch a video of concrete barriers being tested or read a transcript.