ISO 12353-1:2020

Overview

ISO 12353-1:2020 sets out an internationally recognized vocabulary for road vehicle traffic accident investigation and analysis. Developed by the International Organization for Standardization (ISO), this standard provides clear and consistent terminology to be used when recording, analyzing, and reporting on road traffic accidents. It covers definitions related to accident classification, descriptive elements, data collection, crash analysis, and aggregate data interpretation. Establishing a unified language, the standard enhances communication and improves data quality across accident research and road safety domains.

Key Topics

ISO 12353-1:2020 addresses several core themes essential for effective road traffic accident analysis:

• Accident Classification: Terms such as injury accident, fatal accident, damage-only accident, single-vehicle and multi-vehicle accidents, and various accident-involved vehicle categories.
• Descriptive Elements & Data Collection: Definitions for accident investigation types (e.g., on-scene, in-depth, multidisciplinary), and terms describing the accident environment-such as accident scene, accident site, road conditions, and visibility factors.
• Crash Analysis & Reconstruction: Vocabulary pertinent to crash phases, vehicle and occupant dynamics, impact configurations, velocities, delta-v (Δv), and energy measures. This includes terms such as crash sequence, intrusion velocity, crash pulse, impact configuration, and principal impact.
• Aggregate Data Analysis: Concepts used in the interpretation and aggregation of accident data for research, policy, and safety applications.
• Vehicle and Road User Features: Standardized language around road users, vehicle occupants, pedestrian definitions, restraint systems, and injury outcomes (such as impairment, fatality, disability).
• Data Source and Quality: Clear terminology for types of investigations, sampling units, data origins, and inclusion criteria.

Applications

The practical value of ISO 12353-1:2020 lies in the standardization and clarity it brings to the field of traffic accident analysis. Key applications include:

• Accident Investigation and Reporting: Law enforcement, insurance professionals, and accident investigators can use standardized terms to ensure accurate and unambiguous recording and communication of accident circumstances.
• Road Safety Research: Researchers and analysts benefit from a consistent vocabulary, improving the quality of statistical analysis, cross-border studies, and meta-analyses on road safety.
• Policy Development and Legislation: Policymakers use the defined terminology to establish clear criteria in road safety regulations and reporting requirements.
• Crash Reconstruction: Engineers and technical experts conducting crash reconstructions use these terms in technical reports, contributing to more reliable and reproducible analysis.
• Data Sharing Across Borders: With international acceptance, different countries and organizations can confidently exchange and interpret accident and injury data using a common language.

Related Standards

ISO 12353-1:2020 is part of a broader framework of road vehicle standards. Relevant related documents include:

• ISO 6813: This standard provides additional terms and definitions specifically related to configuration aspects of road vehicle collisions.
• SAE J224 and J1301: These are referenced for damage classification and terminology related to collision deformation in passenger and heavy vehicles.
• ANSI D.16: Provides definitions and standards for accident classification and crash event sequencing, relevant for the “harmful event” concept.
• Other parts of ISO 12353: Covering methods and processes for accident investigation and analysis.

A full list of standards in the ISO 12353 series, as well as other related international references, can be accessed via the ISO website.

Keywords: ISO 12353-1:2020, road vehicles, traffic accident analysis, accident investigation, accident vocabulary, crash reconstruction, traffic safety, accident data, standard terminology.