Grantham Street Multi-Intersection Treatment Review and Evaluation

• Project scheduleReview & Evaluation

Last Reviewed: 03/04/2025

The intersection of Jersey Street/Grantham Street and Pangbourne Street/Grantham Street has experienced 31 reported crashes over the past five years. 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 below figures:

• Modifications to the median islands to restrict some traffic movements in and out of Jersey and Pangbourne Streets
• Re-alignment 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. The evaluation is to be completed over a 12-to-18-months period post construction and will check that the intersections are operating as per the expected design outcomes, including reduced likelihood and severity of crashes and ensure that the surrounding network is operating within appropriate traffic flow limits.

Scope Details

The multi-intersection evaluation includes a technical study and an online Community Perception Survey. The technical study aims to review the impact of vehicle movements and network operations in the surrounding streets and intersections. The online Community Perception Survey will seek feedback from the community to understand which aspects of the multi-intersection treatment are working well and whether further changes are needed.  

Current Status

The Town has engaged an independent traffic consultant to carry out the technical study to evaluate the multi-intersection treatment. As a part of the evaluation, traffic surveys will be undertaken to collect traffic data in April 2025 during the school term. 

Online Survey

An online survey has been created for the local community to provide feedback to the multi-intersection treatment.

The survey will remain open until 5pm Sunday, 27 April 2025.

Complete the survey

Next Steps

A report will be presented at an Ordinary Council Meeting outlining the treatment’s effectiveness and providing any recommendations for further improvements