ISO TR 12353-4-2024 PDF

Full title and description

Road vehicles — Traffic accident analysis — Part 4: Compilation of methodologies for assessment of vehicle safety system effectiveness. This Technical Report compiles common methods used to assess how well vehicle safety systems (active, passive and integrated, including crash-avoidance systems) avoid or mitigate crashes, injuries and fatalities and describes inputs/outputs, applicability and limitations for each method.

Abstract

This technical report presents a compilation of prospective and retrospective methodologies for assessing vehicle safety system effectiveness. For each methodology it describes applicability, advantages, limitations, accuracy and sensitivity, and specifies necessary input and output data and recommended formats. Effectiveness is treated as the capability of a safety system or feature to avoid or mitigate crashes, injuries or fatalities.

General information

• Status: Published.
• Publication date: November 2024.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.040.80 (Crash protection and restraint systems).
• Edition / version: Edition 1 (2024).
• Number of pages: 29 pages (Technical Report).

Key bibliographic and lifecycle information as published by ISO.

Scope

The document compiles and describes methodologies for assessing the effectiveness of vehicle safety systems. It covers active, passive and integrated systems (including crash-avoidance functions), and addresses both prospective (e.g., simulation, modelling) and retrospective (e.g., observational, epidemiological, database) approaches. For each method the report outlines required data, expected outputs, strengths, weaknesses and the contexts in which it is applicable.

Key topics and requirements

• Definitions and operational meaning of “effectiveness” for vehicle safety systems (avoidance vs. mitigation).
• Compilation of prospective methodologies (simulation, virtual testing, scenario-based evaluation) and their data/assumption needs.
• Compilation of retrospective methodologies (before/after studies, case–control, cohort analyses, exposure-based approaches) and data requirements.
• Assessment of applicability, advantages, limitations, accuracy and sensitivity for each method.
• Recommended input and output data elements and suggested data formats to support method interoperability and result comparison.
• Guidance on interpreting results and combining evidence from multiple methodologies for robust effectiveness assessment.

These topics form the core practical guidance the report provides to analysts, manufacturers and regulators.

Typical use and users

Primary users include vehicle safety analysts, OEM safety and engineering teams, regulatory agencies, independent research organisations, insurers and standards developers. Typical uses are: evaluating new or updated safety functions, designing testing and validation programs, interpreting field data to estimate real-world effectiveness, and supporting regulatory or policy decisions.

Related standards

This part (Part 4) is one element of the ISO 12353 series on traffic accident analysis. Relevant related documents include: ISO 12353-1:2020 — Road vehicles — Traffic accident analysis — Part 1: Vocabulary; ISO 12353-2:2003 — Part 2: Guidelines for the use of impact severity measures; ISO/TR 12353-3:2013 — Part 3: Guidelines for the interpretation of recorded crash pulse data to determine impact severity. These parts provide the terminology, severity-measure guidance and pulse-data interpretation guidance used by analysts working with Part 4 methodologies.

Keywords

vehicle safety, traffic accident analysis, effectiveness assessment, crash avoidance, retrospective study, prospective simulation, crash severity, methodology compilation, ISO 12353.

FAQ

Q: What is this standard?

A: It is ISO/TR 12353-4:2024, a Technical Report from ISO that compiles methodologies to assess the effectiveness of vehicle safety systems (active, passive and integrated).

Q: What does it cover?

A: It covers both prospective and retrospective assessment methods, describes applicability, advantages, limitations, accuracy and sensitivity for each approach, and specifies necessary input/output data and recommended formats for analysis and reporting.

Q: Who typically uses it?

A: Vehicle manufacturers, safety engineers, crash investigators, regulators, research organisations, insurers and standards developers use it to design evaluations, interpret results and support policy or product decisions.

Q: Is it current or superseded?

A: ISO/TR 12353-4:2024 is published and current as of November 2024 (Edition 1). Users should check ISO or their national standards body for any future revisions or corrigenda.

Q: Is it part of a series?

A: Yes — it is part of the ISO 12353 series on traffic accident analysis (see Part 1: Vocabulary; Part 2: Impact severity measures; Part 3: Crash pulse interpretation). The series is managed by ISO/TC 22/SC 36.

Q: What are the key keywords?

A: Vehicle safety, effectiveness assessment, traffic accident analysis, crash avoidance, methodology, retrospective study, prospective simulation.