ISO/DTR 12353-4

ISO/TC 22/SC 36/WG 7
Secretariat: AFNOR
Date: 2024-07-0408-05
Road vehicles — Traffic accident analysis — —
Part 4:
Compilation of methodologies for assessment of vehicle safety
system effectiveness
Véhicules routiers — Analyse des accidents de la circulation — —
Partie 4: Compilation dedes méthodologies pour l'évaluation de l'efficacité des systèmes de sécurité des
véhicules
DTR stage
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Published in Switzerland
ii
Contents
Foreword . v
Introduction . vi
Part 4: Compilation of methodologies for assessment of vehicle safety system effectiveness . 1
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 2
5 Overview of assessment methodologies. 2
5.1 Prospective and retrospective methods . 2
5.2 Exposure . 3
5.3 Risk . 4
5.4 Odds . 4
5.5 Field of effect . 4
5.6 Effectiveness rate . 5
5.7 Potential effectiveness . 5
5.8 Benefit . 8
5.9 Safety performance . 8
6 Crash rate estimation using crash case and exposure data (retrospective assessment) . 9
6.1 Introduction . 9
6.2 Applicability, advantages and limitations . 9
6.3 Methodology . 9
6.3.1 Description . 9
6.3.2 Input data. 9
6.3.3 Output data . 10
6.4 Accuracy, sensitivity and validation . 10
7 Dose-response model (retrospective assessment) . 10
7.1 Introduction . 10
7.2 Applicability, advantages and limitations . 14
7.3 Methodology . 14
7.3.1 Description . 14
7.3.2 Input data. 14
7.3.3 Output data . 14
7.4 Accuracy, sensitivity and validation . 14
8 Induced exposure (retrospective assessment) . 15
8.1 Introduction . 15
8.2 Applicability, advantages and limitations . 15
8.3 Methodology . 15
8.3.1 Description . 15
8.3.2 Input data. 16
8.3.3 Output data . 16
8.4 Accuracy, sensitivity and validation . 17
9 Paired comparisons (retrospective assessment) . 17
9.1 Introduction . 17
9.2 Applicability, advantages and limitations . 17
9.3 Methodology . 17
9.3.1 Description . 17
9.3.2 Input data. 19
iii
9.3.3 Output data . 19
9.4 Accuracy, sensitivity and validation . 19
10 Prospective assessment based on virtual simulations according to ISO/TR 21934-1 . 19
10.1 Introduction . 19
10.2 Applicability, advantages and limitations . 19
10.3 Methodology . 20
10.3.1 General. 20
10.3.2 Input data. 23
10.3.3 Output data . 23
10.4 Accuracy, sensitivity and validation . 24
11 Crash momentum index, C–V plane (prospective or retrospective assessment) . 24
r
11.1 Introduction . 24
11.2 Applicability, advantages and limitations . 25
11.3 Methodology . 25
11.3.1 Description . 25
11.3.2 Input data. 28
11.3.3 Output data . 29
11.4 Accuracy, sensitivity and validation . 29
Annex A (informative) Application of prospective and retrospective methods . 30
Bibliography . 32

iv
Foreword
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v
Introduction
Many methodologies are used to analyse the effectiveness of various vehicle safety systems. Most methods are
retrospective, have different applicability, advantages and limitations, an
...