Road to Zero: New Zealand's Road Safety Strategy Explained

Road to Zero is the most ambitious road safety strategy New Zealand has ever adopted. Launched in December 2019, it set a target that would've seemed utopian a generation earlier: a 40% reduction in deaths and serious injuries by 2030, with an ultimate vision of zero road deaths. But ambition and achievement are different things. Six years into the strategy, where does New Zealand actually stand, and what does it all mean for drivers?

What Is Road to Zero?

Road to Zero is New Zealand's road safety strategy for 2020 to 2030, developed by the Ministry of Transport, NZ Transport Agency Waka Kotahi, and NZ Police. It's built on the Safe System approach, a philosophy borrowed from Sweden's pioneering Vision Zero programme that reframes how we think about road safety.

The traditional approach to road safety placed primary responsibility on individual drivers. If someone crashed, it was because they made a mistake, drove too fast, or took a risk. The Safe System approach flips this thinking. It starts from the premise that people are fallible, that mistakes on the road are inevitable, and that the system itself should be designed so those mistakes don't result in death or serious injury.

This isn't a soft-on-drivers philosophy. It's a harder-on-everything-else philosophy. It demands better roads, safer vehicles, appropriate speeds, and smarter enforcement, all working together so that when a human error occurs (and it will), the consequences are survivable.

The Core Principles

The Safe System approach rests on several interconnected principles:

• People make mistakes. No amount of education or enforcement will eliminate human error entirely. The system must account for this.
• Human bodies are vulnerable. There are known physical limits to the forces a human body can withstand. Above certain speeds, crash forces exceed these limits and death becomes likely.
• Responsibility is shared. Road designers, vehicle manufacturers, speed-setters, enforcement agencies, and drivers all share responsibility for safety outcomes.
• All parts of the system must work together. A weakness in any one area (poor roads, old vehicles, inappropriate speeds) can undermine safety gains elsewhere.

The Targets

Road to Zero set a measurable interim target: a 40% reduction in deaths and serious injuries by 2030, measured against a 2018 baseline. In 2018, New Zealand recorded 378 road deaths and approximately 2,800 serious injuries. A 40% reduction would mean reaching no more than approximately 227 deaths and around 1,680 serious injuries per year by 2030.

The longer-term vision was zero deaths and serious injuries by 2050.

The Five Focus Areas

Road to Zero is organised around five focus areas, each targeting a different part of the road safety system.

1. Infrastructure and Speed

This is the largest and most heavily funded pillar. It covers two related areas: making roads physically safer through infrastructure improvements, and ensuring speed limits match the safety characteristics of each road.

On the infrastructure side, the strategy directed investment into median barriers to prevent head-on collisions, side barriers to protect against run-off-road crashes, rumble strips (Audio Tactile Pavement Markings) to alert drifting drivers, intersection upgrades including roundabouts and raised crossings, and road surface improvements.

The numbers are big. More than 1,700 kilometres of safety treatments like crash barriers and rumble strips have been implemented under Road to Zero, along with approximately 1,500 intersection upgrades. Rumble strips alone have been shown to reduce fatal run-off-road crashes by up to 42%.

On the speed side, the strategy supported setting speed limits that reflect the actual safety characteristics of each road, rather than relying on blanket defaults. This led to widespread speed limit reductions on roads where the infrastructure didn't support the existing limit.

2. Vehicle Safety

New Zealand has a particular vehicle safety challenge that many other developed countries don't face. A large proportion of our vehicle fleet consists of used imports, primarily from Japan. While these vehicles met safety standards when manufactured, many are older models with fewer modern safety features.

According to Waka Kotahi research, 41% of New Zealand's light passenger vehicles have a 1 or 2 star Used Car Safety Rating, approximately 1.65 million vehicles out of a fleet of around four million. A driver in a one-star rated vehicle is 90% more likely to die or sustain a serious injury in a crash than a driver in a five-star vehicle.

Road to Zero aimed to accelerate fleet turnover toward safer vehicles through a combination of regulatory standards and consumer information, including the promotion of ANCAP safety ratings and the Used Car Safety Ratings (UCSR) system.

3. Work-Related Road Safety

A substantial proportion of driving in New Zealand is work-related, whether commercial freight, service vehicles, or commuting. This pillar focused on strengthening safety standards for commercial transport and encouraging employers to take responsibility for the driving risks their employees face.

4. Road User Choices

Despite the Safe System philosophy, individual behaviour still matters. This pillar covered road policing priorities, enhanced drug and alcohol testing, improved access to driver licensing and training, and public education campaigns.

The government allocated approximately $1.24 billion to road policing within the broader Road to Zero budget, making it one of the largest single investments.

5. System Management

The final pillar focused on coordination between the various agencies responsible for road safety: the Ministry of Transport, Waka Kotahi, NZ Police, ACC, and local government. Effective road safety requires these agencies to work together rather than in silos.

How Speed Cameras Fit In

Speed cameras are one of the most visible elements of Road to Zero, and often the most contentious. Under the strategy, Waka Kotahi took over operational responsibility for the safety camera network from NZ Police, and the programme was substantially expanded.

The rationale is straightforward from a Safe System perspective. Speed determines the energy involved in a crash, and energy determines whether people live or die. At 50 km/h, a pedestrian hit by a car has roughly a 20% chance of dying. At 70 km/h, that probability exceeds 60%. The physics are unforgiving.

Waka Kotahi data shows that across ten new camera sites where before-and-after data has been tracked, speed limit compliance increased from 57% to 98%. At the Matakana Road average speed camera site, which became operational in December 2025, compliance rose from 88% to over 99%.

The strategy funded the procurement and deployment of new fixed speed cameras, average speed (point-to-point) cameras, and red light cameras. Fixed spot speed cameras are expected to reduce deaths and serious injuries at a site by approximately 20%, while average speed cameras are projected to achieve reductions of around 48%.

Progress So Far: Are the Targets Being Met?

This is the central question, and the answer is complicated.

The Road Toll Numbers

Here is the annual road death toll over the period of the strategy:

Year	Deaths	Change from 2018 Baseline (378)
2018	378	Baseline
2019	353	-6.6%
2020	320	-15.3%
2021	319	-15.6%
2022	349	-7.7%
2023	341	-9.8%
2024	289	-23.5%
2025	272	-28.0% (provisional)

The 2024 figure of 289 was the first time the annual toll dipped below 300 since 2014. On a per capita basis, 2024's rate of 5.4 deaths per 100,000 was the lowest since records began in the 1920s, according to the AA. The 2025 provisional toll of approximately 272 kept up the downward trend.

Approaching the Target?

A 40% reduction from 378 deaths would mean reaching 227 or fewer deaths by 2030. With 272 deaths in 2025, New Zealand has achieved a 28% reduction. The country needs to cut a further 45 deaths per year (from the 2025 level) over the remaining four years to reach the target.

Whether that's achievable is debatable. The initial years of the strategy saw progress stall and even reverse, with the toll climbing to 349 in 2022. Officials admitted as early as 2022 that the 40% target wasn't achievable, with a "realistic" target of 33% discussed internally. The sharp reductions in 2024 and 2025 have brought the target back into range. But some analysts attribute part of this decline to the economic downturn reducing vehicle kilometres travelled, rather than safety interventions alone. I think this is worth watching closely over the next couple of years as economic conditions shift.

Serious Injuries

Deaths are only half the picture. Road to Zero also targets serious injuries, which were running at approximately 2,090 per year as of 2024. The target calls for a reduction to around 1,680 by 2030. Progress on serious injuries has been slower than on deaths, and this remains an area of concern.

The Speed Management Debate

No element of Road to Zero generated more public controversy than speed limit reductions. Under the strategy and the previous Setting of Speed Limits Rule 2022, many roads around the country had their speed limits lowered, often from 100 km/h to 80 km/h on rural roads and from 50 km/h to 30 km/h or 40 km/h in urban areas.

The evidence base for lower speed limits is strong. The relationship between speed and crash severity follows well-established physics: kinetic energy increases with the square of velocity. A car travelling at 100 km/h carries 56% more energy than one at 80 km/h. That extra energy directly translates to more severe injuries and a higher probability of death.

But the political reception was mixed. Critics argued that many speed limit reductions were applied as a blanket measure to roads that didn't warrant them, that they increased travel times and economic costs, and that they were a substitute for investing in proper infrastructure improvements.

The debate became a major issue in the 2023 general election. The incoming National-led government campaigned on reversing what it described as "blanket speed limit reductions" and introduced the new Land Transport Rule: Setting of Speed Limits 2024 in September 2024, which required many roads to revert to their pre-2020 speed limits by July 2025.

Road safety experts, including international advisors who had contributed to Road to Zero, warned that reversing speed limit reductions would lead to increased deaths. Multiple local councils, academics, and health professionals opposed the reversals on safety grounds.

Comparison with Sweden's Vision Zero

New Zealand's Road to Zero draws direct inspiration from Sweden's Vision Zero, adopted by the Swedish parliament in 1997. The comparison is instructive.

When Sweden adopted Vision Zero, its road toll stood at 541 deaths per year. By 2021, this had fallen to 192, a reduction of 65% despite large increases in traffic volume. Sweden achieved this through sustained investment in infrastructure (median barriers are near-universal on high-speed rural roads), strict speed management, high vehicle safety standards, and a cultural shift in how road safety was approached.

Sweden's road death rate of approximately 2.6 per 100,000 population places it among the safest countries in the world. New Zealand, at approximately 5.0-5.4 per 100,000 in recent years, is well behind. The OECD median is approximately 4.1 per 100,000, and New Zealand has traditionally ranked in the bottom 25% of OECD countries for road safety outcomes.

The key difference is time and consistency. Sweden has been implementing Vision Zero for nearly three decades with bipartisan political support. New Zealand adopted its version six years ago, and it's already been partially dismantled and replaced by a new government. Policy continuity matters enormously in road safety because the infrastructure investments that deliver the largest gains take years to plan, build, and show results. And that's something that's easy to forget in a three-year election cycle.

Funding and Budget

Road to Zero was backed by substantial funding. The 2021-2024 National Land Transport Programme allocated $2.9 billion to Road to Zero activities, making it one of the largest road safety investments in New Zealand's history.

This included approximately $1.4 billion for infrastructure safety improvements across more than 1,500 kilometres of road, $1.24 billion for road policing, and funding for safety cameras, vehicle safety initiatives, education campaigns, and system management.

The government also spent approximately $62 million on promotional and education campaigns supporting Road to Zero. That drew criticism from some quarters as an inefficient use of limited safety funding.

The Government Transition

In October 2024, the National-led government formally replaced Road to Zero with New Zealand's Road Safety Objectives, a new policy document setting the government's road safety priorities for the next three years.

The new objectives retain a focus on safer roads, safer drivers, and safer vehicles, but take a different approach to speed management. The Setting of Speed Limits Rule 2024 reversed many of the speed limit reductions implemented under Road to Zero, required higher-standard roads to have their limits raised back to pre-2020 levels, and introduced the possibility of 110 km/h and even 120 km/h limits on the safest motorway-standard roads.

The Road Safety Objectives document also shifted emphasis from the previous government's Safe System orthodoxy toward what it described as a "balanced" approach that weighs safety against travel time and economic efficiency.

Whether this is a pragmatic recalibration or a step backward depends on your perspective and your reading of the evidence.

Criticism and Debate

Road to Zero has drawn criticism from multiple directions.

From the right: The strategy was criticised as overly prescriptive, with blanket speed limit reductions applied without enough regard for local conditions. The economic costs of lower speed limits, including increased travel times for rural communities, were highlighted. Some argued that speed cameras were primarily a revenue-raising tool rather than a genuine safety measure.

From the left and safety advocates: Critics argued the strategy wasn't ambitious enough, that implementation was too slow, and that the government failed to invest enough in the infrastructure improvements that would deliver the largest safety gains. The subsequent reversal of speed limits by the new government was condemned as prioritising convenience over lives.

From researchers: Academics noted that the 40% target was always ambitious given the funding constraints and implementation timeline. They also pointed out that the strategy's effectiveness was difficult to evaluate because multiple interventions were being implemented simultaneously, making it hard to attribute specific outcomes to specific measures.

What It Means for Everyday Drivers

For the average New Zealand driver, Road to Zero's legacy is tangible in several ways:

• Speed cameras are more widespread. The network has expanded a lot, with new fixed and average speed cameras appearing on roads across the country. And this trend is continuing under the new government's road safety objectives.
• Speed limits have changed, and may change again. Many roads have seen limits adjusted, both downward under Road to Zero and upward under the new rules. Drivers need to pay attention to posted limits rather than relying on assumptions.
• Infrastructure is improving. Median barriers, rumble strips, and upgraded intersections are appearing on high-risk roads. These changes are less visible than speed cameras but arguably more impactful.
• Vehicle safety matters more than ever. With 41% of the fleet rated one or two stars, the vehicle you drive has a major effect on your survival odds in a crash. Checking safety ratings before purchasing is increasingly important.

Future Direction Post-2030

With Road to Zero formally replaced, the question is what comes next. The current Road Safety Objectives document covers a three-year period and doesn't set specific long-term targets comparable to Road to Zero's 40% reduction goal.

Several trends will shape New Zealand's road safety trajectory over the coming decade:

Technology: Advanced driver assistance systems (ADAS) including autonomous emergency braking, lane-keeping assistance, and adaptive cruise control are becoming standard in new vehicles. As the fleet turns over, these technologies will progressively reduce crash frequency and severity.

Electric vehicles: The growing EV fleet may have safety implications. EVs tend to be newer and better-equipped with safety features, but their higher mass raises concerns about crash severity for occupants of lighter vehicles.

Average speed cameras: The expansion of point-to-point camera networks represents a shift from point enforcement to corridor enforcement. Evidence suggests this is more effective at sustaining speed compliance over longer stretches of road.

Infrastructure investment: The Road to Zero infrastructure programme isn't complete. Many of the planned median barrier installations and intersection upgrades will continue to be delivered over the coming years, regardless of changes in policy branding.

International benchmarking: New Zealand remains well behind the best-performing OECD countries. Countries like Norway (2.1 deaths per 100,000), Sweden (2.6), and the UK (2.3) show what's achievable with sustained commitment. Closing this gap will require ongoing investment and policy consistency.

Conclusion

Road to Zero represented a genuine shift in how New Zealand approached road safety, moving from a blame-the-driver paradigm to a systemic approach that recognised shared responsibility. Its implementation was uneven, its targets were ambitious, and its political lifespan was shorter than its architects intended.

But the data tells an important story. New Zealand's road toll has fallen from 378 in 2018 to 272 in 2025, a 28% reduction. The per capita rate is the lowest in a century. Whether this happened because of Road to Zero, despite the change in government policy, or mostly because of external factors like the economy, is a question that'll occupy researchers for years to come.

What's clear is that the challenge remains large. Nearly 300 people still die on New Zealand roads every year. Thousands more are seriously injured. The social cost runs into billions of dollars. Whatever the strategy is called, the work of making New Zealand's roads genuinely safe is far from finished.

Sources

• Road to Zero - Ministry of Transport
• NZ's Road Safety Strategy - Waka Kotahi
• New Zealand's Road Safety Objectives - Ministry of Transport
• Road to Zero Strategy Document (PDF) - Ministry of Transport
• Provisional Road Deaths - Ministry of Transport
• 2024 Lowest Rate of Road Deaths Since the 1920s - AA NZ
• Road Safety Country Profile New Zealand 2023 - ITF/OECD
• Government Delivers Sensible Approach to Speed Limits - Beehive.govt.nz
• Setting of Speed Limits - Ministry of Transport
• Safety Cameras - Waka Kotahi
• Vehicle Safety Ratings - Waka Kotahi
• Road Safety - Office of the Auditor-General
• Vision Zero - Wikipedia
• Road Deaths Down for Third Year - RNZ