Techniques

Austroads 26 May 2026

Safe System Assessments

Cyclist Crashes Cyclists Head-On Crashes Heavy Vehicle Occupants Local Streets Micro-Mobility Motorcyclist Crashes Motorcyclists Other Crashes Passenger Vehicle Occupants Pedestrian Crashes Pedestrians Post-Crash Response Safe People Safe Roads & Roadsides Safe Speeds Safe Vehicles Treatments

A Safe System Assessment is a structured review that evaluates an existing road, project, or network against Safe System principles — quantifying the kinetic-energy risk to road users and assessing how well the road environment, speed limits, vehicles, and road-user behaviour combine to keep impact forces within survivable thresholds. The technique is typically applied to project options or existing high-risk corridors when a deeper Safe System gap analysis is needed than a conventional Road Safety Audit provides.

Outputs include a scored risk profile by crash type and road-user group, a treatment-priority schedule keyed to Safe System pillars, and a high-level cost-benefit ranking to support investment decisions. The assessment uses tools from the Austroads Guide to Road Safety and the AusRAP risk-mapping evidence base. It is increasingly used to inform Network Safety Plans and to test whether proposed projects make a meaningful contribution to Vision Zero outcomes rather than a marginal improvement on the existing situation.

Table of contents will be populated from the linked technique document. Editors add a structured TOC here once the published file is linked.

Change log entries for Safe System Assessments — editors record revisions, errata and supersession notes here.

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Resources and references related to safe system assessments.

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