Role and function


Road

Role and Function

Who and how it is used

Why speed limit change and not other speed management interventions

Cashmere Road (from near Quarry View Park to near Saddle Vale Rise entrance)

Local Streets, providing connection and access to properties.

Residents connecting to and accessing their properties, pedestrians connecting to the wider network and cyclists travelling through.

Speed limit change is most appropriate as existing road corridor does not allow for other speed management interventions.

Cashmere Road (from near Saddle Vale Rise entrance to near Happy Home Road entrance)

Peri-urban Roads, provide connection to properties.

Residents connecting to and accessing their properties, pedestrians connecting to the wider network and cyclists travelling through.

Speed limit changes have been determined the most appropriate intervention as it is significantly more cost effective than other speed management interventions.

Sutherlands Road

Local Streets, providing connection and access to properties.

Residents connecting to and accessing their properties, pedestrians connecting to the wider network

Speed limit changes have been determined the most appropriate intervention as it is significantly more cost effective than other speed management interventions.

Hoon Hay Valley Road

Peri-urban Roads, provide connection to properties.

Residents accessing their properties.

Speed limit changes have been determined the most appropriate intervention as it is significantly more cost effective than other speed management interventions.

Cost benefit disclosure statement

If you have any issues viewing the table, a pdf version is available here.

Data sources:

Existing speed limitNZTA National Speed Limit Register
Proposed speed limitConsultation
Number of crashes in the last five yearsNZTA Crash Analysis System
Estimated reduction in the number of crashes each yearCalculated using the NZTA Optional Cost Impact Analysis Tool
Current average operating speedTomTom traffic data
Estimated average operating speed when new speed limit is in placeCalculated using the NZTA Optional Cost Impact Analysis Tool
Estimated impact on individual travel timeCalculated 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 no growth in daily traffic volumes.
  • The implementation cost reflects the cost of installing speed limit signs around the edge of each speed limit zone.