High-risk intersections across New Zealand continue to be a focus for safety upgrades, with councils and RCAs applying a combination of signage, delineation and physical treatments to reduce speed on approach and improve intersection safety outcomes.

Speed Limit Signage   Sign Specifications & Code Finder  Delineation & Curbing   High Risk Intersection Upgrades

NZTA and various RCAs continue to deliver intersection safety upgrades at locations where crash history, road layout and existing speed limits are known contributing factors. Vehicles approaching at higher speeds remain a key factor in crash severity.  Advance warning signage such as W10-1 Stop Ahead and W10-2 Give Way Ahead signs are commonly used as a lower-cost measure to reinforce reduced approach speeds. These signs are often gated configuration (one either side of the road) can be made on a white background or with fluorescent yellow backing board, where additional conspicuity is required.

At higher-risk sites, highly visible signage such as Slow Down High Crash Area signs is commonly used by local authorities. These are typically applied as part of a combined treatment approach rather than as standalone measure. Similar treatments include retroreflective Threshold Signs displaying reduced speed limits and locality names are installed on approaches to communities and towns. Threshold Signs are available in both a RS51.1 urban size and RS52.1 rural size to suit the location.

Delineation and channelisation treatments, including FG-300 Delineators and curb sections, are commonly used to define vehicle paths and limit higher-risk manoeuvres such as U-turns. Individual delineators and modular separator curbs can also be used to provide additional physical separation at the intersection approach, alongside painted threshold treatments, traffic islands and curb build-outs where required.

Our signs and solutions are used by councils and contractors on intersection upgrades and safety improvement projects across New Zealand. For project enquiries, please contact our team at sales@rtl.co.nz

• https://rtl.co.nz/high-risk-rural-intersection-upgrades
• https://rtl.co.nz/speed-limit-and-school-signs
• https://rtl.co.nz/resource/rtl-brochure-fg-300-delineators-and-curb-system
• https://rtl.co.nz/specifications
• https://www.nzta.govt.nz/assets/resources/high-risk-intersections-guide/docs/high-risk-intersections-guide.pdf
• https://www.nzta.govt.nz/assets/resources/traffic-control-devices-manual/docs/part-4-intersections.pdf
• https://www.nzta.govt.nz/assets/Walking-Cycling-and-Public-Transport/docs/pedestrian-network-guidance/docs/3.5-intersections-feb-2025.pdf