Amber Flashing Beacon on a Divided Road in New Zealand: Which Vehicles?
In this guide
A vehicle showing an amber flashing beacon on a New Zealand expressway, motorway or other divided road is usually a tractor or self-propelled farm machine, or a working vehicle such as a road maintenance truck, traffic management vehicle or tow truck. In New Zealand, amber warning lamps on agricultural vehicles are tied to how the machine is being used on the road, particularly when it is oversize or travelling slowly, so you will see them on state highways, rural roads and divided roads alike. Expect to close on them quickly.
New Zealand rules here are quite different from the UK, where the beacon is only compulsory for slow vehicles on fast dual carriageways. Below is how the New Zealand rules work in general terms, which vehicles may show an amber beacon, and what to do when you come up behind one.
What type of vehicle uses an amber flashing beacon on a divided road?
In New Zealand, amber flashing lamps are warning lamps for vehicles that are slow, oversize or working on or beside the road. If you see one on a divided road, it will usually be a slow or working vehicle.
Vehicles you may see with an amber beacon on a New Zealand divided road:
- Agricultural tractors, with or without trailers, effluent tankers or other towed equipment
- Combine harvesters, self-propelled sprayers and forage harvesters moving between paddocks during silage or harvest
- Road maintenance vehicles, such as gritters, snow ploughs, sweepers and mowers
- Road works and traffic management vehicles
- Tow trucks and recovery vehicles
- Utility service vehicles, but only at the scene of their work
What does it mean when a moving vehicle is showing a flashing amber beacon?
It is a warning that the vehicle may be moving slowly, stopping, turning or working on the road, so approach with caution. It is not an emergency vehicle. Emergency vehicles in New Zealand use red and blue lamps, and you do not need to pull over for an amber beacon.
What do the New Zealand rules say?
Vehicle lighting in New Zealand is governed by the Land Transport Rule: Vehicle Lighting 2004, together with related Land Transport Rules, administered by NZ Transport Agency Waka Kotahi (NZTA). Agricultural vehicles have their own treatment within these rules, covering lighting, width, speed and when warning lamps must be used.
For tractors and self-propelled agricultural machines, the requirement for amber warning lamps depends on factors such as the width of the vehicle or its load, the speed it travels at and the conditions it is used in. The exact requirement for your machine is set out in NZTA Waka Kotahi’s agricultural vehicle guidance, which explains the rules in plain English. Check it before you take a wide or slow machine onto the road.
| Point | What the rules cover | Source |
|---|---|---|
| Which vehicles | Agricultural vehicles, including tractors and self-propelled agricultural machines | Land Transport Rule: Vehicle Lighting 2004; NZTA guidance |
| Which roads | All public roads, not only divided roads | Land Transport Rules; NZTA guidance |
| When must it be on? | In the situations the rules set out, such as oversize or slow-moving operation | NZTA agricultural vehicle guidance |
| Width and speed | Wider and faster agricultural vehicles carry extra requirements | NZTA agricultural vehicle guidance |
| Mounting | Mounted so the warning lamp can be seen by other road users, usually high on the cab roof | Land Transport Rule: Vehicle Lighting 2004 |
| Lamp standard | Lamps should meet a recognised standard, such as UN ECE (E-mark) approval | Land Transport Rule: Vehicle Lighting 2004 |
Is there a special rule for divided roads?
No. New Zealand has no special divided road beacon rule like the UK’s. Where the rules require a warning lamp on an agricultural vehicle, they apply on any public road, whether that is an expressway, a state highway or a narrow rural road. Many farmers run the beacon on every road trip anyway, because it is the simplest way to warn faster traffic.
How is this different from the UK rule?
Many drivers who learned in Britain know the UK theory test answer: in Great Britain, a vehicle with a maximum speed of 25 mph or less must show an amber beacon on a dual carriageway with a speed limit over 50 mph, and the beacon is otherwise optional. That rule does not apply in New Zealand. Here:
- The requirement depends on the agricultural vehicle rules, not on a single speed figure for one type of road.
- Where a warning lamp is required, it applies on every public road, not only fast divided roads.
- Width and slow-moving operation matter as much as speed, so check NZTA Waka Kotahi’s guidance for your machine.
Speed still matters for following drivers. Many tractors have a design speed of around 40 km/h, while the open road limit on most New Zealand highways is 100 km/h. On a 100 km/h road a car closes on a 40 km/h tractor at 60 km/h, which is over 16 metres every second. The beacon gives drivers behind the early warning they need to slow down and change lanes in good time.
Can tractors use New Zealand motorways?
Motorways in New Zealand can carry restrictions on slow vehicles, and a standard tractor is rarely a sensible choice on one. Check the signage at the motorway entrance and NZTA Waka Kotahi’s guidance before planning a route that includes a motorway. If you do use a motorway or expressway, run the beacon so faster traffic sees you early.
What should you do when you see one?
Treat an amber beacon on a divided road as a vehicle you will reach far sooner than you expect.
- Check your speed and mirrors early. Judge the closing speed, not just the distance.
- Move to the right-hand lane in good time if it is clear, rather than braking hard at the last moment.
- Watch for wide machines. Combines, flotation tyres and wide implements can come close to the lane line or over it. Very wide machines may travel with pilot vehicles.
- Expect on-ramp and gap movements. Tractors often join, leave or cross the road at farm gates and minor intersections.
- Do not stop or pull onto the shoulder as you might for an emergency vehicle.
Advice for tractor drivers on divided roads
Check the beacon works before you leave the yard, and switch it on before you pull out onto any public road, not just the divided road. Make sure it can be seen: a high bale trailer or a tall load can hide a cab-mounted beacon from drivers behind. A second beacon on the trailer, or a magnetic beacon on the rear of the load, helps with that. Remember the rest of the lighting system (headlamps, position and rear lamps, stop lamps, indicators and number plate lighting) must be fitted and working too. Browse our amber tractor beacons or the full tractor beacons range.
For the full meaning of amber beacons on any road, see our guide to amber beacon meaning. To compare amber with blue and the other colours, see beacon colours explained. For more on beacon rules for farm vehicles, see when amber beacons are required on tractors.
Frequently asked questions
Which vehicles must use a flashing amber beacon on a divided road in New Zealand?
Agricultural vehicles must use amber warning lamps in the situations set out in the New Zealand rules, such as oversize or slow-moving operation, and that applies on divided roads as on any other public road. Check NZTA Waka Kotahi’s agricultural vehicle guidance for the exact requirement for your machine. Other vehicles such as road maintenance, traffic management and tow trucks may also use amber beacons for their duties.
Should a flashing amber beacon be used on all divided roads?
Where the rules require a warning lamp on your machine, yes, on every public road, whatever the speed limit. There is no separate divided road rule as there is in the UK. Running the beacon on every road trip is good practice even when it is not strictly required.
Does a tractor crossing a divided road need a beacon?
If your machine needs a warning lamp on the road, it needs it while crossing too. Even where it is not required, switching it on before crossing a fast road is the safest approach.
Can the beacon be on the trailer instead of the tractor?
The warning lamp should be fitted where other road users can see it, which usually means high on the tractor or self-propelled machine itself. You can add an extra beacon on a trailer or load so it can be seen from behind. Check NZTA Waka Kotahi’s guidance for how your combination should be lit.
