Crash Investigation

In cooperation with local governments, we conduct crash location investigations after the occurrence of a fatal crash.

The primary focus of crash investigations is to identify road environment factors which may possibly be related to the cause of a crash or may have increased the severity of a crash.

Crash investigations are undertaken using a two stage process;

  • Preliminary Crash Investigations which should occur within 7 working days of the crash; and
  • Detailed Crash Investigations which are completed only if a road environment factor possibly related to the cause or severity of a crash is identified in the preliminary crash investigation.

Our Intersection Crash Ranking - Interactive Report allows you to produce reports on statistics throughout WA.

Treatment of Crash Locations course

This course is a vital training resource for programs such as the Federal and State funded Black Spot programs in Western Australia.

Crash Map

Crash Map is a relational GIS crash mapping application that enables users to perform both macro and micro analysis of reported road crashes. Crash Map also provides a fully integrated platform for the creation and management of applications for the State and Federal Black Spot programs in Western Australia. The crash data is available to State and Local Government road agencies and also to consultants engaged to complete work on behalf of these agencies.

Road View

Road View is a relational video application that allows users to upload and view georeferenced video files captured using a GPS enabled dashcam. Road View then geospatially relates the video captured with crash data and asset information, enabling relational analysis of the road environment to assist in the process of conducting road safety route assessments and asset management. Road View is available to State and Local Government road agencies and also to consultants engaged to complete work on behalf of these agencies.

Road Safety Management Plans for Local Government

Austroads Local Government Road Safety Management Guidance sets out a road safety management planning framework and action plan that gives effect to higher-order documents, including the National and State Road Safety Strategies to assist local governments tackle the key road safety issues in their local area.

Road Safety Management Plans also help local governments to understand their road safety risks at a local level, identify key areas of focus, develop an action plan and monitor safety outcomes in relation to the State Road Safety Strategy targets. The plans can also support resource planning and can be used as a method of communicating to local government customers and other stakeholders about road safety at a local level.

We have developed a Road Safety Management Plan template and supporting tools and resources to assist local governments to develop and operate their own plan. We're also able to provide ongoing support and guidance to local governments about the road safety management planning process and the tools and resources that support the process.

 Road Safety Management Plan Template

 Road Safety Management Planning Process Guide

For assistance, please contact the Road Safety team at

Road Safety Assessments of High Risk Routes and Intersections

Main Roads has developed a strategic approach for conducting road safety assessments on high risk routes and intersections. This is a vital process for identifying road environmental factors that may have contributed to the causation or severity of crashes along routes and at intersections. The assessment process places emphasis on killed or serious injury (KSI) crash risk and incorporates Safe System principles embedded within the process. This is to be achieved by focusing the assessment process on considering safe speeds and by providing forgiving roads and roadsides and delivered through a road safety assessment process that accepts people can make mistakes and by considering the known limits to crash forces the human body can tolerate with the aim to reduce the risk of fatal and serious injury crashes.

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Acknowledgement of country

The Government of Western Australia acknowledges the traditional custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders both past and present.

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