Grantham Street Multi-Intersection Treatment Review and Evaluation

• Project scheduleReview & Evaluation

Last Reviewed: 13/08/2025

Over the past five years, the intersection of Jersey Street/Grantham Street has experienced 31 reported crashes, while the intersection of Pangbourne Street/Grantham Street has recorded eight crashes.

To address these safety concerns the Town investigated the best long term solution to improve safety at these intersections.

Grantham Street and Jersey Street Intersection

Grantham Street and Pangbourne Street Intersection

 

The Town, in consultation with Main Roads WA (MRWA) explored different treatments to improve safety, while limiting the impacts on adjacent intersections. This included a roundabout, traffic signals and various turning movement restrictions.

Jersey Street/Grantham Street and Pangbourne Street/Grantham Street intersections qualified for Blackspot funding for a multi-intersection treatment in the 2023/24 financial year due to the high number of vehicle crashes recorded over the past five years.

The construction of the multi-intersection treatment was completed in April 2024. The treatment consisted of the following measures, which are also shown in the figures below:

• Modifications to the median islands to restrict some traffic movements in and out of Jersey and Pangbourne Streets
• Realignment of Pram Ramps and associated road, kerb and footpath work, including Tactile Ground Surface Indications
• Removal of selected temporary bollards and installation of regulatory lines and signs

A project was included in the 2024/2025 Budget for a detailed traffic study to evaluate the performance of the Grantham Street multi-intersection treatment.

Scope Details

The multi-intersection evaluation includes both a technical study and an online Community Perception Survey. The technical study assesses whether the intersections are performing in line with their intended design outcomes, specifically, reducing the likelihood and severity of crashes and ensuring that the surrounding road network operates within appropriate traffic flow limits. The Community Perception Survey was conducted to gather feedback from residents on which aspects of the multiintersection treatment are working well and to identify areas where further improvements may be needed. To ensure objectivity, the Town engaged an independent traffic consultant to carry out the technical study. As part of this evaluation, traffic surveys were conducted in April 2025 during the school term to collect relevant data.

Current Status

Clarifying the Report

The Town is currently reviewing the Officer’s Report from July 2025, which was published as part of the agenda briefing. A supplementary document is being prepared to provide clearer explanations of the technical data and to address key questions raised by the community.

This document will be made available to all interested residents via the Town’s website and social media channels, not just to those who have submitted queries, ensuring equal access to the information for everyone.

In response to community advocacy and feedback from Elected Members, we will provide further feedback on the implications of potential alternative decisions or intersection treatments. This includes expanding further on the risks, benefits, and implications of these options to ensure Council can make an informed decision. This is something our community was very clear in requesting. While this may not change the officer recommendation, it will provide advice to Council on the implications if a different alternative is chosen. While the current recommendation to Council may remain unchanged, I want to assure you this is not pre-determined and will be dependent upon the results of our review.

Engaging with Main Roads WA (MRWA):

We will be consulting with MRWA to help clarify whether any alternative options can be considered by the Town. This is not a formal application to MRWA for a different treatment, but rather an early dialogue to understand if the Department’s position has evolved in light of the work done in the last few years, so we can provide accurate advice on current options and potential next steps.

Next Steps

Providing An Advance Copy of the Report

The updated report will be re-released one month prior to its presentation at either the October or November Ordinary Council Meeting. This will allow sufficient time for community members to review the information and engage with their elected representatives on their views. Should community members have further question on the report at that time, the Town will also be able to respond to questions in advance of the Council meeting. Please refer back to this webpage for future updates.

Please refer back to this webpage for future updates.

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