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Auckland Transport

Duke Street, Mt Roskill - Speed Humps Duke Street, Mt Roskill - Speed Humps

Consultation status: closed 22 June 2017

We are proposing to install speed humps on Duke Street, between the intersections of Mt Eden Road and Parau Street.

Why the changes are needed

Duke Street is a fast and busy road which meets the criteria for Local Area Traffic Management (LATM) treatment. Excessive speeds and accidents are a common occurrence at this location and with the relocation of Bus Services from this section of Duke Street LATM treatment of the road can be completed.

Download the consultation drawing for Duke Street (PDF 1.1MB)


Thank you everyone for your feedback.

The proposal received mixed feedback with some concerns raised by respondents. After reviewing this feedback and all other supporting evidence, the proposal will proceed without changes to the next stage of detailed planning.

Specific feedback and proposed solution

  • Suggestion that this proposal should not be implemented as it is an inconvenience for residents and can contribute to the physical deterioration of vehicles. There is plenty of opportunity to gain speeds on this section of Duke Street as it has one of the highest Local Area Traffic Management (LATM) scores on record receiving many complaints about accidents and speeding. We believe that due to these factors we can make changes to the speeding environment. The speed humps should not make the road any more difficult to travel on and they can slow down vehicles as intended. If driven over at the correct speed the speed humps will not contribute to vehicle deterioration.

  • Adding speed humps would reduce the amount of parking in an area with high demand. There will be no loss of parking as these types of speed humps can be parked on, as per the existing humps on west Duke Street.

  • Suggestion that wider type of speed hump be installed to encourage lower speeds. The proposed humps are sinusoidal with a width of 3.7m and are generally as effective as speed tables at slowing vehicles. They will be the same design as the existing humps on west Duke Street.

  • There is a problem with vehicles driving fast down Duke Street and turning at speed into McCullough Avenue. Suggestions to move speed bumps further west of the intersection and install a single-lane roundabout in order to help the situation. We believe that the humps will be installed in a good location to achieve a slower speed environment for the whole section, and that moving the humps closer to McCullough Ave would be unnecessary. If the humps were to be moved, we would be increasing the spacing between them which would enable vehicles to increase their speeds along this section. In regards to the suggestion of installing a roundabout, we believe the speed humps will be effective enough in slowing down traffic along Duke St therefore the construction of a roundabout is not an appropriate traffic management option.

  • Suggestion to include more speed humps to slow speed further, especially closer to the bends. The speed humps have been carefully spaced to ensure that motorists drive at reasonable speeds between the humps for the length of the road.

  • Request for additional works including kerb build outs, speed tables, rumble strips and Police surveillance. If you would like your request to be considered for future development works, please provide feedback here.

Next steps

We expect to introduce this work starting in July 2017 and throughout 2017/2018, subject to any further changes in design or funding issues. Contractors will notify all residents in the area prior to starting construction work.