Road	Role / function	How it's used	Why a speed reduction has been proposed over other measures
Antigua Street	Activity Street, providing a link for cyclists between the central city and the Quarryman’s Trail major cycle route. Motorists connecting to local businesses, car parking facilities and the hospital area. It is anticipated that the Parakiore Recreation and Sport Centre will generate more traffic (all modes) using Antigua to access this facility.	Motorists, cyclists and pedestrians. It is expected that there will be a significant increase in pedestrian and coach traffic for large events.	Street layout changes using horizontal and vertical deflection are being completed as part of the Transport programme to align with the new Parakiore Recreation and Sports Centre. The design which includes speed humps, a raised pedestrian/cycle crossing, buildouts and narrowing elements to the street is proposed to reduce the speed to align with 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.