ISO 3888-1:2018

INTERNATIONAL ISO
STANDARD 3888-1
Second edition
2018-12
Passenger cars — Test track for a
severe lane-change manoeuvre —
Part 1:
Double lane-change
Voitures particulières — Piste d'essai de déboîtement latéral
brusque —
Partie 1: Double déboîtement
Reference number
©
ISO 2018
© ISO 2018
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ii © ISO 2018 – All rights reserved

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 double lane-change track . . 1
4.2 Marking of the double lane-change track . 2
Annex A (informative) Test method. 4
Bibliography . 6
Foreword
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This document has been prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee
SC 33, Vehicle dynamics and chassis components.
This second edition cancels and replaces the first edition (ISO 3888-1:1999), which has been technically
revised. The main changes compared to the previous edition are as follows:
— Recognizing regenerative braking and active control systems.
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 © ISO 2018 – All rights reserved

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
interactions of these driver-vehicle-environment elements are each complex in themselves. A complete
and accurate description of the behaviour of the road vehicle 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. Acquiring sufficient and reliable data on the correlation
between accident avoidance and vehicle dynamic properties in general and the results of these tests in
particular involves a substantial amount of work. Consequently, any application of this test method for
regulation purposes will involve proven correlation between test results and accident statistics.
Annex A provides further information on the test method.
INTERNATIONAL STANDARD ISO 3888-1:2018(E)
Passenger cars — Test track for a severe lane-change
manoeuvre —
Part 1:
Double lane-change
1 Scope
This document specifies the dimensions of the test track for a closed-loop test method to subjectively
determine a double lane-change which is one part of the vehicle dynamics and road-holding ability of
passenger cars. It is applicable to passenger cars as defined in ISO 3833. It is also applicable to light
c
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