Electronic flood alert pilot
Following the extreme weather events of early 2023, Auckland Transport (AT) is testing an electronic flood alert system at 3 key sites across Auckland.
Pilot locations
For phase 1 of this pilot programme, electronic signage and related infrastructure have been installed at:
- Sunnyside Road and Robinson Road, Coatesville
- Kaipara Flats, Warkworth
- Falls Road, Warkworth.
All 3 areas have flooded regularly and not just during severe weather events.
If the pilot is successful, AT intends to secure further funding to install more systems across the region.
About the technology being used
Infrastructure installed was tailored to each site, taking into account factors including topography, connectivity, road speed and community needs.
Three types of sensors (water, radar and CCTV AI digital ruler) will activate electronic road signs once waters reach a set level, and anyone who has registered for alerts will be notified.
This type of technology is proving effective in countries that have been impacted by severe weather events, including Australia and the United States.
Using these sensors in Auckland will allow AT to warn road users of rising water levels and likely road closures so they can plan ahead. The electronic signage will notify users when the road is closed and provide information on any detour routes.
Next steps
If proven reliable, the system will be implemented at Auckland Transport’s Operations Centre (ATOC) during phase 2. This will enable shared communications across AT channels (the AT website, AT Mobile app and social media).
We’re also reviewing technology enhancements, including whether people who enter a flood area can be notified even if they haven’t registered their contact details. Our aim is to reach as many people as possible before they travel to flooded areas.
Share your feedback
We’d like to know your thoughts on the signage currently installed. Are the signs in optimal locations? Is the wording helpful? Are the warnings giving you enough lead time to make alternate plans? Are you seeing any impact on road user behaviour?
We want to learn what we can do to make the system as useful as possible.
You can also sign up to receive email alerts when water rises to critical levels at any of the 3 test locations.
Contact us
For more information, contact atengagement@at.govt.nz.