Improving intersection safety on Mangawhai Road and Waiteitei Road, Te Arai

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Everyone deserves to be safe on Auckland roads. To help make the intersection of Mangawhai Road and Waiteitei Road in Te Arai safer and easier to use, we are proposing installing an intersection speed zone.

The Mangawhai Road / Waiteitei Road intersection is a key point on the main route between Auckland and Mangawhai. Around 1,390 vehicles use Mangawhai Road, and over 2,800 use Waiteitei Road every day. It has been identified as a high risk intersection due to its layout and the number of vehicles using it. In the last five years there were four reported crashes here .

See the location on the map below.

What we are doing

We are proposing implementing an intersection speed zone. This means variable speed limit signs would be installed on Mangawhai Road. When there is a vehicle waiting to turn out of Waiteitei Road on to Mangawhai Road, or from Mangawhai Road into Waiteitei Road, these signs will display a temporary lower speed limit. A lower speed through the intersection makes it safer for everyone. The lower speed only applies when the signs are activated by a vehicle waiting to turn.

How it works

Intersection speed zones use sensors and electronic signs to automatically detect vehicles waiting turn into or out of side roads. When the sensors detect a vehicle waiting to turn, the variable speed limit signs on Mangawhai Road will turn on and display 60km/h. This will alert drivers they need to slow down because there are vehicles waiting to turn into or out of Waiteitei Road.

Where we are doing this

The diagram below shows the intersection, where the variable speed limit signs will be placed and where the detection and speed limit zones will be:

Download the map here.

Why we are doing this

Intersection speed zones are a targeted safety improvement proven to reduce serious crashes. They have been identified as an effective solution for this location. They can be installed faster and at a much lower cost than major changes like traffic lights or roundabouts, while still delivering strong safety benefits with minimal construction disruption. This allows safety improvements to be rolled out at more locations across the network.

The government's Land Transport Rule - Setting of Speed Limit Rule 2024 requires us to complete a cost benefit disclosure statement for the proposed speed limit changes. Read more here and here.

Have your say

Community engagement is open for six weeks from 5 June to 17 July 2026. You can share your thoughts by:

• Completing the survey
• Emailing us at ATEngagement@at.govt.nz

What happens next

We will consider all community feedback and present a feedback report and recommendation to Rodney Local Board. Rodney Local Board will then provide feedback prior to a final decision being made.

Enter your email in the Stay Informed box, above, to be notified when the consultation report is available. Everyone who completes the survey will be notified.

Use of AI tools

We may use AI tools to help us review feedback from this consultation. This can help us spot common themes and summarise what people tell us more quickly. We will use AI in line with our privacy and data protection standards, and our team will still review all feedback to make sure reporting is fair and accurate.