ISO 3888-2:2025

International
Standard
ISO 3888-2
Third edition
Passenger cars — Test track for a
2025-11
severe lane-change manoeuvre —
Part 2:
Obstacle avoidance
Voitures particulières — Piste d'essai de déboîtement latéral
brusque —
Partie 2: Évitement d'obstacle
Reference number
© ISO 2025
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Specifications . 1
4.1 Dimensions of the obstacle avoidance track .1
4.2 Marking of the obstacle avoidance track .2
Annex A (informative) Test method . 4
Bibliography . 6

iii
Foreword
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bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
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This document was prepared by Technical Committee 22, Road vehicles, Subcommittee SC 33, Vehicle
dynamics, chassis components and driving automation systems testing.
This third edition cancels and replaces the second edition (ISO 3888-2:2011), which has been technically
revised.
The main changes are as follows:
— re-design of figures;
— added recommendations on recording environmental conditions;
— minor rephrasing changes.
A list of all parts in the ISO 3888 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
Introduction
The main purpose of this document is to provide repeatable and discriminatory test results.
The dynamic behaviour of a road vehicle is a very important aspect of active vehicle safety. Any given vehicle,
together with its driver and the prevailing environment, constitutes a closed-loop system that is unique. The
task of evaluating the dynamic behaviour is therefore very difficult since the significant interaction of these
driver-vehicle-environment elements are each complex in themselves. A complete and accurate description of
the behaviour of the road vehicle necessarily involves information obtained from a number of different tests.
Since this test method quantifies only one small part of the complete vehicle handling characteristics, the
results of these tests can only be considered significant for a correspondingly small part of the overall
dynamic behaviour.
Moreover, insufficient knowledge is available concerning the relationship between overall vehicle dynamic
properties and accident avoidance. A
...