Speed Limit Review - Adelaide Hills Council area

The Department of Planning, Transport and Infrastructure has now collated all feedback provided as part of the community consultation process in February and March 2015.

The feedback received was mixed and varied between respondents.

While there was no clear majority or consensus regarding the proposals, the results did indicate a generally positive response for the proposal to improve speed limit signage, including trialling the use of pavement markings.

Given the feedback received, the following actions will be taken:

  • The Department will not implement the proposed speed limit changes on Greenhill Road and Onkaparinga Valley Road as part of the speed limit review at this time. However, the department will undertake a trial of improved speed limit signage and pavement marking along Onkaparinga Valley Road.


  • This improved signage includes installing repeater signs and pavement markings on a trial basis at the entrance to townships with existing 50km/h speed limits and installing '50 Ahead' signs where appropriate.  These additions aim to highlight the change in speed limit for drivers entering the existing 50km/h speed zones in order to reduce driver confusion.

It is anticipated that this additional signage and line marking will be installed by the end of August 2015. These additions will be trialled over a 6 month period after which the department will undertake a further review of their potential benefit and effectiveness.

To read the full review, visit the Department of Planning, Transport and Infrastructure website.