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ISO/AWI 26684

Intelligent transport systems (ITS) — Cooperative intersection signal information and violation warning systems (CIWS) — Performance requirements and test procedures

General information

20.00     Jun 30, 2026

ISO

ISO/TC 204

International Standard

Scope

ISO 26684:2015 specifies the concept of operation, system requirements, and test methods for cooperative intersection signal information and violation warning systems (CIWS) at signalized intersections. CIWS are intended to reduce the likelihood of crash injury, damage, and fatality by enhancing the capability of drivers to avoid crash situations at signalized intersections.
The scope of CIWS standardization includes basic functions, functional requirements, performance requirements, information contents, and test methods.
The characteristics of the technologies used to communicate between the signal controller and the vehicles are not addressed by this International Standard nor are the behavioural responses by drivers, the various capabilities of vehicles on the road, or the multitude of combinations of these two characteristics.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 26684:2015

NOW

PROJECT
ISO/AWI 26684
20.00 New project registered in TC/SC work programme
Jun 30, 2026