Road	Role / function	How it's used	Why a speed reduction has been proposed over other measures
Aorangi Road	Aorangi Road: Local Street, providing connection to residential properties and support access to schools, businesses and shops on Aorangi Road.	Motorists, cyclists and pedestrians.	Speed management interventions are proposed at intersections along the route, the proposed speed limit change is to align with the existing and expected operating speeds
Condell Avenue	This short section of Condell Avenue is currently supporting access to surrounding local streets and resident properties.	Motorists, cyclists and pedestrians.	Speed management interventions are proposed along the short section of Condell Avenue, the proposed speed limit change is to align with the existing and expected operating speeds.
Matsons	Local Street, providing connection to residential properties and support access to Early Childhood centres, businesses and shops.	Motorists, cyclists and pedestrians.	Speed management interventions are already installed along Matsons Avenue, the proposed speed limit change is to align with the existing and expected operating speeds

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Data sources:

Existing speed limit	NZTA National Speed Limit Register
Proposed speed limit	Consultation
Number of crashes in the last five years	NZTA Crash Analysis System
Estimated reduction in the number of crashes each year	Calculated using the NZTA Optional Cost Impact Analysis Tool
Current average operating speed	TomTom traffic data
Estimated average operating speed when new speed limit is in place	Calculated using the NZTA Optional Cost Impact Analysis Tool
Estimated impact on individual travel time	Calculated using the NZTA Optional Cost Impact Analysis Tool
Estimated impact on collective travel times	Calculated using the NZTA Optional Cost Impact Analysis Tool

Additional notes:

• The estimated impacts in the cost benefit disclosure statement are based on the assumption of 1% growth in daily traffic volumes.
• The implementation cost reflects the cost of installing speed limit signs around the edge of each speed limit zone.