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Flexible road safety barriers

Flexible road safety barriers are life savers.

When fitted along the side and centre of the road, barriers reduce the number of people killed by up to 90 percent.1

If you hit a flexible barrier, the steel cables flex, slowing down your vehicle and keeping it upright. They absorb the impact so you and the people with you, don't.

For more information on flexible road safety barriers:

Side and median barriers

Barriers are life savers.

They stop you before you hit something harder – like a tree, power pole or oncoming vehicle.

Rumble strips

Rumble strip

Rumble strips could be the difference between straying off the road or staying on it.

These raised markings give off a rumbling sound when you drive over them. This gives you a wake-up call if you stray across the line. 

Rumble strips can reduce fatal run-off-road crashes by up to 42 percent.2

Widening the centrelines

Widening the centreline means more space between you and oncoming vehicles.

More space between lanes can reduce serious crashes by up to 20 percent.2

Signs and road markings


Signs and road markings warn drivers of risks further down the road like intersections, stop signs or tight corners.

The right signs in the right places make a big difference in preventing crashes.

Signs warning drivers about a corner can reduce crashes by up to 57 percent.2

Improved intersections

Our intersections can be dangerous places, but there are a range of things we can do to make them safer.

Turning lanes, better road signs or Intersection Speed Zones are just some of the improvements we can make.

We can cut back trees so it's easier to see other vehicles, or improve the road surface so drivers are less likely to skid. 

17 percent of deaths and injuries happen at rural intersections.3

Widening the road shoulders

Shoulder widening

A wide sealed road gives you room to recover if you lose control or need to move out of someone's way.

Wide road shoulders can reduce serious crashes by up to 35 percent.2

Speed management

Speed management

Some of our current speed limits are not safe or appropriate for how people are using the road.

To make roads safer, we can improve the roads and we can also lower speed limits.

Some of our current speed limits do not reflect that roads can be challenging and demanding to drive, and often aren't easy to read. Where we know there is an issue with speed on a road, or concerns are expressed by communities, we can review speed limits.

The Speed Management Guide details how we ensure speed limits are nationally consistent and reflect the function, form, safety and environment. There’s a formal process to follow under the Setting of Speed Limits Rule 2017, including consultation with stakeholders and communities.

Johansson, R. (2009). Vision Zero – Implementing a policy for traffic safety. Safety Science. 47(6), 826-831.

High Risk Rural Roads Guide, published September 2011, NZ Transport Agency. First Edition. [PDF, 3.6 MB]

3 High Risk Intersections Guide, published July 2013, NZ Transport Agency. [PDF, 5.2 MB]