Complete Guide to NZ Speed Limits: Every Type Explained

New Zealand's speed limit system is more complex than most drivers realise. Beyond the familiar 50 and 100 km/h defaults, there are variable limits, temporary construction limits, school zones, heavy vehicle restrictions, advisory speeds, and a rapidly evolving regulatory framework that's seen major changes in 2024 and 2025. This guide covers every type of speed limit you'll encounter on New Zealand roads, how they're set, and what recent changes mean for drivers.

The Default Speed Limits

New Zealand has two default speed limits that apply across the entire road network unless a different limit is specifically posted.

Urban Areas: 50 km/h

The default speed limit in urban areas is 50 km/h. An "urban area" is defined by the presence of street lighting on one or both sides of the road. When you pass a blue and white "urban area" sign (or see the start of continuous street lighting), the 50 km/h limit applies automatically unless a different speed is posted.

Many urban roads don't have speed limit signs. The absence of a sign in an urban area doesn't mean there's no limit. It means the default 50 km/h applies.

Rural Areas: 100 km/h

The default speed limit on rural (open) roads is 100 km/h. This applies when you leave an urban area, typically marked by an "open road" sign with a diagonal black line on a white background. Again, no speed limit sign needs to be posted for 100 km/h to apply on rural roads.

But an increasing number of rural roads now have posted limits lower than 100 km/h. These are set by Road Controlling Authorities based on the safety characteristics of each road.

All Speed Limit Values in Use

New Zealand uses the following speed limit values on its road network:

10 km/h

The lowest speed limit in New Zealand. Used in very specific locations such as shared zones, some car parks, and wharves.

20 km/h

Applied in some shared spaces and pedestrian-priority areas, particularly in central city zones where vehicles and pedestrians share road space.

30 km/h

Increasingly common as a variable speed limit outside schools during drop-off and pick-up times. Under the Setting of Speed Limits Rule 2024, all local streets outside schools will be required to have a 30 km/h variable speed limit by 1 July 2026.

40 km/h

Used in many school zones and some residential areas. Previously widespread under the 2022 speed limit rule, some 40 km/h limits on local streets have been or will be reverted to 50 km/h under the 2024 rule.

50 km/h

The urban default. Applied on most suburban and city streets.

60 km/h

A common intermediate limit on urban arterial roads, some peri-urban roads, and areas transitioning between urban and rural environments. Under the 2024 rule, rural roads outside schools will be required to have variable speed limits of 60 km/h or less.

70 km/h

Used on some urban arterials and transition zones between 50 km/h urban areas and 100 km/h rural roads.

80 km/h

Applied on many rural roads where the 100 km/h default has been assessed as inappropriate. Many of the speed limit reductions under Road to Zero changed roads from 100 km/h to 80 km/h. Some of these have been or will be reversed under the 2024 rule.

100 km/h

The rural default. The most common speed limit on state highways and rural roads.

110 km/h

A newer addition to New Zealand's speed limit range. Currently applied on a limited number of high-standard divided motorway sections that meet strict safety criteria, including median barriers, no crossing roads, no tight curves, and two lanes in each direction.

As of early 2026, the following roads have 110 km/h limits:

• Cambridge section of the Waikato Expressway (SH1): Between the Cambridge Southern and Tamahere interchanges, later extended northward to the Hampton Downs interchange following the opening of the Hamilton section in July 2022.
• Tauranga Eastern Link (SH2): Between the Paengaroa roundabout and the Domain Road interchange.
• SH1 north of Puhoi to Warkworth: A 15 km stretch, effective from July 2025.
• SH1 Transmission Gully: From north of Linden to Paekakariki, a 27 km stretch, effective from February 2026.

Variable Speed Limits

Variable speed limits are displayed on electronic signs and change according to conditions. They're legally enforceable, not advisory.

Motorway Variable Speed Limits

On Auckland's motorway network and other major routes, overhead electronic signs display variable speed limits that change in response to traffic volume, congestion, incidents, or adverse weather. Common displayed speeds include 60 km/h, 80 km/h, and 100 km/h.

A widespread misconception is that these numbers are advisory. They aren't. Variable speed limits displayed on electronic signs are regulatory limits, and exceeding them is an offence. I've lost count of how many people I've talked to who genuinely didn't know this.

School Variable Speed Limits

Electronic variable speed limit signs outside schools display 30 km/h or 40 km/h during designated school travel times (typically a 45-minute window at the start and end of the school day). When the electronic sign is illuminated and the speed is displayed, that limit is legally enforceable.

Outside the displayed hours, the regular speed limit for the road applies.

How Variable Speed Signs Work

For electronic variable speed signs at schools, if the speed number is visible and the yellow lights are flashing, the displayed speed is the maximum legal limit until the zone ends. When the signs are blank or the lights are off, the normal posted speed limit applies.

Temporary Speed Limits

Temporary speed limits are put in place when conditions on or near the road make the existing speed limit unsafe. The most common scenario is roadworks.

Rules for Temporary Speed Limits

Temporary speed limits must comply with several legal requirements:

• They can remain in force for a maximum of 12 months.
• They must be lower than the prevailing permanent or holiday speed limit for that road.
• They must be at least 20 km/h lower than the permanent speed limit.
• They must apply to all vehicles equally.
• Signs must be removed as soon as the temporary limit is no longer needed.

Common Temporary Speed Limits

At roadwork sites, you'll typically encounter temporary speed limits of 30 km/h, 50 km/h, or 70 km/h, depending on the nature of the work, the proximity of workers to traffic, and the road environment.

Temporary speed limits are also used during events (such as road cycling races or community events near roads) and in response to natural hazards like flooding, slips, or earthquake damage.

Enforcement

Temporary speed limits are legally enforceable. NZ Police and speed cameras can and do enforce temporary limits, particularly in construction zones.

School Zones

School zone speed limits have gone through major changes in recent years and continue to evolve.

Current Rules

Many schools already have variable speed limits of 40 km/h displayed on either electronic or static signs during school start and finish times. The exact times vary by school, but typically cover a 45-minute window at morning drop-off and afternoon pick-up.

Upcoming Changes (by 1 July 2026)

Under the Setting of Speed Limits Rule 2024:

• Local streets outside schools that don't already have a variable speed limit will be required to have a 30 km/h variable limit by 1 July 2026.
• Rural roads outside schools will be required to have variable speed limits of 60 km/h or less.

Static speed limit signs near schools clearly state the times during which the variable limit applies. For electronic signs, the limit is in force when the sign is illuminated.

Permanent vs Variable School Zones

Some school zones have permanent lower speed limits (e.g., a road permanently set at 40 km/h), while others have variable limits that only apply during school hours. The distinction matters: a permanent 40 km/h limit applies at all times, while a variable 40 km/h limit only applies during the posted or displayed times.

Speed Limits for Different Vehicle Types

Not all vehicles are subject to the same speed limits. Several vehicle categories have lower maximum speeds regardless of the posted limit.

Heavy Vehicles: 90 km/h Maximum

Any vehicle with a gross laden weight exceeding 3,500 kg is classified as a heavy vehicle and is limited to a maximum speed of 90 km/h, even on roads with a posted limit of 100 km/h or 110 km/h. This includes trucks, large buses, and some larger campervans.

School Buses: 80 km/h Maximum

School buses have a lower maximum of 80 km/h, reflecting the additional duty of care when carrying children.

Vehicles Towing

• Rigid towing connection (towbar, A-frame): Maximum 90 km/h.
• Non-rigid towing connection (rope, strop, chain): Maximum 50 km/h. The reduced control and increased stopping distance with a flexible connection make this one pretty self-explanatory.

Curve Advisory Speeds for Heavy Vehicles

Heavy vehicle drivers are advised to travel at least 10 km/h below the advisory speed posted on curves. Heavy vehicles have a higher centre of gravity and a lower static rollover threshold compared to passenger cars, so the standard advisory speeds don't apply to them the same way.

Advisory Speed Signs vs Regulatory Speed Limits

New Zealand uses a clear system to distinguish between mandatory speed limits and recommended speeds.

Regulatory Speed Limit Signs

Regulatory speed limits are displayed in a red circle on a white background with the number in black. The speed always ends in zero (e.g., 50, 60, 80, 100). These are legally enforceable maximums.

Advisory Speed Signs

Advisory speeds are displayed on yellow diamond-shaped signs or attached to chevron signs on curves. The speed always ends in five (e.g., 25, 35, 45, 55, 75, 85, 95). These are recommendations, not legal requirements.

Advisory speeds are calculated based on the forces required to safely take a curve. The posted advisory speed corresponds to the speed at which lateral g-forces reach approximately 0.22g, the threshold for comfortable and safe cornering for an average passenger car in normal conditions.

Because advisory speeds end in 5 and regulatory limits end in 0, there's no possibility of confusing the two. It's actually a neat system.

Can You Be Fined for Exceeding an Advisory Speed?

You can't receive a speeding fine for exceeding an advisory speed. But if you crash while exceeding an advisory speed, it may be considered evidence of driving at a speed inappropriate for the conditions, which is a separate offence under the Land Transport Act.

How Speed Limits Are Set

Speed limits in New Zealand are set by Road Controlling Authorities (RCAs) following a structured legal process.

Road Controlling Authorities

Two types of RCA set speed limits:

• Waka Kotahi NZ Transport Agency sets speed limits on state highways.
• Local councils (city and district councils) set speed limits on local roads within their boundaries.

The Setting of Speed Limits Rule 2024

The current legal framework is the Land Transport Rule: Setting of Speed Limits 2024, which came into force on 30 October 2024 (replacing the 2022 rule). An amendment in January 2025 expanded the scope of roads subject to speed limit reversals.

The rule sets out the criteria, requirements, and procedures that RCAs must follow when reviewing and setting speed limits. Key elements include:

• Technical assessment: Speed limits must be set based on the characteristics of the road, including its geometry, infrastructure, crash history, land use, and traffic volume.
• Consultation: A formal public consultation period of at least four weeks is required before changing any speed limit.
• Director approval: Final speed limit decisions must be submitted to the Director of Land Transport for approval.

The Role of the Speed Management Guide

Waka Kotahi publishes the Speed Management Guide, which provides detailed technical guidance for RCAs on how to assess roads and determine appropriate speed limits. The guide includes methodologies for calculating safe and appropriate speeds based on road function, safety features, and surrounding land use.

How to Request a Speed Limit Change

If you believe a speed limit on a road in your area is inappropriate, there's a formal process to request a change.

For Local Roads

Contact your local city or district council, which is the Road Controlling Authority for local roads. Most councils have a process for receiving speed limit concerns from the public. You can:

1. Submit a service request to your council identifying the road, the current speed limit, and why you believe it should change.
2. Participate in public consultation when the council reviews speed limits in your area. RCAs are required to consult for at least four weeks before making changes.
3. Engage through community boards or residents' associations, which can collectively advocate for speed limit reviews.

For State Highways

Contact Waka Kotahi, which manages speed limits on state highways. You can submit feedback through their website or contact their regional offices.

What Happens After a Request?

The RCA isn't obligated to act on individual requests, but they are required to periodically review speed limits. When reviews occur, community feedback is considered alongside technical road safety assessments, crash data, and the requirements of the Setting of Speed Limits Rule 2024.

The Nationwide Speed Limit Changes

New Zealand has been through two major rounds of speed limit changes in recent years, creating a complex and sometimes confusing situation for drivers.

The 2020-2023 Reductions

Under Road to Zero and the Setting of Speed Limits Rule 2022, hundreds of roads across the country had their speed limits reduced. Common changes included:

• Rural roads reduced from 100 km/h to 80 km/h
• Urban streets reduced from 50 km/h to 40 km/h or 30 km/h
• Arterial roads reduced from 60 km/h or 70 km/h to 50 km/h

Auckland Transport's "Safe Speeds" programme was particularly extensive, implementing lower limits across much of Auckland's urban road network.

The 2024-2025 Reversals

The Setting of Speed Limits Rule 2024 required many of these changes to be reversed:

• Roads that had been reduced from 100 km/h were required to revert to 100 km/h if they met certain criteria.
• Urban roads reduced from 50 km/h were required to revert to 50 km/h.
• Reversals were required to be implemented by 1 July 2025.

But not all reductions were reversed. Roads where the lower limit was justified by the road's safety characteristics (e.g., roads without median barriers, with tight curves, or with high pedestrian activity) could retain their reduced limits.

The Result

The practical result is that speed limits on many roads have changed twice in the space of a few years. Don't assume you know the speed limit on any road simply because you've driven it before. Always check posted signs.

Common Speed Limit Situations That Catch People Out

Entering an Urban Area Without a Speed Limit Sign

When you cross into an urban area (marked by street lighting or an urban area sign), the default 50 km/h applies immediately, even if there's no speed limit sign posted.

Motorway Variable Limits

On congested motorways, the overhead electronic signs may display 60 km/h or 80 km/h. These are legal limits, not suggestions. Travelling at 100 km/h through a displayed 80 km/h zone is a speeding offence.

Heavy Vehicles on 100 km/h Roads

If you're driving a vehicle over 3,500 kg gross laden weight, your maximum is 90 km/h regardless of the posted limit. On a 110 km/h road, your maximum is still 90 km/h.

Towing

If you're towing a trailer, your maximum speed is 90 km/h even on a 100 km/h road. With a non-rigid towing connection, your maximum is just 50 km/h.

Advisory Speeds on Curves

A yellow advisory speed sign of 75 km/h on a bend doesn't mean you can drive at 75 km/h if the posted limit is 60 km/h. The advisory speed is a maximum recommendation for the curve in good conditions. If the posted limit is lower, the posted limit takes precedence.

Roadwork Zones

Temporary speed limits at roadworks apply even when no workers are visible. The signs remain legally enforceable until they're removed, regardless of whether work is actively underway.

School Zone Timing

School zone variable speed limits can catch out drivers who aren't aware of the specific times they apply. The times are posted on static signs or displayed electronically, and they vary from school to school.

The Relationship Between Speed Limits and Camera Enforcement

Speed cameras in New Zealand enforce the posted speed limit on the road where they're located.

• Fixed speed cameras operate 24/7 at a single point, measuring your speed as you pass.
• Average speed cameras measure your speed over a distance between two camera points. Your average speed must not exceed the posted limit for the entire section.
• Mobile speed cameras (operated by police) can enforce any posted speed limit at any location.

When speed limits change, the cameras are recalibrated or reprogrammed to enforce the new limit. During the recent period of speed limit changes and reversals, there were reports of cameras being temporarily deactivated during transitions.

Speed cameras operate with a tolerance (the exact tolerance isn't publicly disclosed), meaning you'll typically not receive a fine for travelling 1-3 km/h over the limit. But the tolerance isn't a right, and relying on it is unwise.

For areas where speed limits have recently changed, check whether the new limit is in effect before assuming the old limit still applies. The National Speed Limit Register maintained by Waka Kotahi provides the authoritative record of current speed limits on state highways.

Conclusion

New Zealand's speed limit system is in a period of major transition. The combination of Road to Zero-era reductions, subsequent reversals, expanding school zone requirements, new 110 km/h zones on high-standard motorways, and the ongoing rollout of average speed cameras means things are more dynamic than they've been in decades.

The core message for drivers is straightforward: pay attention to posted signs. Default assumptions about speed limits based on road type or past experience are increasingly unreliable. When in doubt, the posted sign (or the default limit for the area) is the law.

Sources

• Speed Limits - Waka Kotahi Road Code
• Heavy Vehicle Speed Limits - Waka Kotahi Road Code
• Setting of Speed Limits - Ministry of Transport
• Land Transport Rule: Setting of Speed Limits 2024 - Waka Kotahi
• 110 km/h Speed Limit Implementation - Waka Kotahi
• 110 km/h on Tauranga Eastern Link and Cambridge Section - Waka Kotahi
• Understanding Variable Speed Limits - AA NZ
• Speed Limits in New Zealand - Wikipedia
• School Zone Speed Limits - Hamilton City Council
• Schools and Kura Speed Limits - Waka Kotahi
• Advisory Speed Signs - DrivingTests.co.nz
• Speed Limit and Speed Sign Information - NZ Police
• Government Delivers Sensible Approach to Speed Limits - Beehive.govt.nz
• Deciding Speed Limits - Waka Kotahi
• National Speed Limit Register - Waka Kotahi