ISO 34505:2025

Road vehicles — Test scenarios for automated driving systems — Scenario evaluation and test case generation

This document defines a methodology to evaluate scenarios and provides a procedure for extending test scenarios to test cases. This document also defines the necessary characteristics of test cases, which include but are not limited to unified identifiers, test objectives, inputs, steps, platforms and expected results. This document describes methods and criteria to evaluate test cases (e.g. frequency, criticality, complexity of a scenario), the coverage concerning functional and technical requirements, operational domain (OD), test criteria, and also the optimization of sets of prioritized test cases. This document is applicable to Level 3 and higher ADSs as defined in ISO/SAE PAS 22736. The focus of this document is on scenarios, which will be tested to evaluate safety (functional safety and safety of the intended functionality (SOTIF)). The content, in general, is also applicable to non-safety related test scenarios.

Véhicules routiers — Scénarios d'essai pour les systèmes de conduite automatisée — Évaluation de scénarios et génération de cas de test

General Information

• Status: Published
• Publication Date: 11-Jun-2025
• ICS: 43.020 - Road vehicles in general
• Technical Committee: ISO/TC 22/SC 33 - Vehicle dynamics and chassis components
• Drafting Committee: ISO/TC 22/SC 33/WG 9 - Test scenarios of automated driving systems
• Current Stage: 6060 - International Standard published
• Start Date: 12-Jun-2025
• Due Date: 15-Sep-2025
• Completion Date: 12-Jun-2025

Standards Content (Sample)

International
Standard
ISO 34505
First edition
Road vehicles — Test scenarios
2025-06
for automated driving systems —
Scenario evaluation and test case
generation
Véhicules routiers — Scénarios d'essai pour les systèmes de
conduite automatisée — Évaluation de scénarios et génération
de cas de test
Reference number
© ISO 2025
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Published in Switzerland
ii
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Introduction and overview . 4
4.1 General .4
4.2 Requirements for compliance .5
5 Evaluation of scenario characteristics . 5
5.1 Purpose .5
5.2 Set of scenarios .6
5.2.1 Objectives .6
5.2.2 General .6
5.2.3 Input to this clause .6
5.2.4 Requirements .7
5.2.5 Work products .7
5.3 Relations between the scenarios and functional and technical requirements .7
5.3.1 Objectives .7
5.3.2 General .7
5.3.3 Input to this clause .8
5.3.4 Requirements .8
5.3.5 Work products .9
5.4 Relation between scenarios and ODD .9
5.4.1 Objectives .9
5.4.2 General .9
5.4.3 Input to this clause .9
5.4.4 Requirements .9
5.4.5 Work products .10
5.5 Relation between the scenarios and test objectives .10
5.5.1 Objectives .10
5.5.2 General .10
5.5.3 Input to this clause .10
5.5.4 Requirements .10
5.5.5 Work products .11
6 Test case generation before test execution .11
6.1 Purpose .11
6.2 Selection of scenarios .11
6.2.1 Objectives .11
6.2.2 General .11
6.2.3 Input to this clause . 12
6.2.4 Requirements and recommendations . 12
6.2.5 Work products . 12
6.3 Scenario priority . 13
6.3.1 Objectives . 13
6.3.2 General . 13
6.3.3 Input to this clause . 13
6.3.4 Requirements .14
6.3.5 Work products .14
6.4 Extend scenarios to test cases . 15
6.4.1 Objectives . 15
6.4.2 General . 15
6.4.3 Input to this clause . 15
6.4.4 Requirements .16

iii
6.4.5 Work products .17
6.5 Methods to optimize the set of test cases .17
6.5.1 Objectives .17
6.5.2 General .17
6.5.3 Input to this clause .17
6.5.4 Requirements .17
6.5.5 Work products .17
7 Test case evaluation during test execution .18
7.1 Purpose .18
7.2 Test initialization.18
7.2.1 Objectives .18
7.2.2 General .18
7.2.3 Input to this clause .18
7.2.4 Requirements .18
7.2.5 Work pr
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