ISO 17387-2008 PDF

Full title and description

St ISO 17387-2008 — Intelligent transport systems — Lane change decision aid systems (LCDAS) — Performance requirements and test procedures. This International Standard specifies functional and performance requirements, human‑machine interface expectations and test procedures for Lane Change Decision Aid Systems intended to warn drivers of potential collisions with vehicles to the side and/or rear during lane‑change manoeuvres on forward‑moving cars, vans and straight trucks in highway situations.

Abstract

ISO 17387:2008 defines the scope, system definitions, performance metrics and reproducible test procedures for Lane Change Decision Aid Systems (LCDAS). It sets out detection zones, timing criteria (including time‑to‑collision concepts), required detection rates and permissible false‑alarm behaviour, environmental and operational test conditions (day/night, precipitation, road geometry), plus human‑machine interface requirements for warnings (visual, audible, haptic) and warning levels. The standard emphasises that LCDAS are driver‑assistance systems only and do not replace the driver’s responsibility for safe lane changes.

General information

• Status: Published (Edition 1, 2008). Last reviewed and confirmed in 2018; listed for future revision.
• Publication date: May 2008 (Edition 1, 2008).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 03.220.20; 35.240.60 (Intelligent transport systems / Vehicle equipment and components).
• Edition / version: Edition 1 (ISO 17387:2008).
• Number of pages: 49 pages.

Scope

The standard applies to Lane Change Decision Aid Systems (LCDAS) used on forward‑moving passenger cars, vans and straight trucks in highway scenarios. It covers definitions of detection and coverage zones (adjacent and rear zones), minimum performance requirements for detection and warning, environmental and operational test conditions, human‑machine interface characteristics, and test procedures to validate system behaviour. It does not apply to motorcycles, articulated vehicles (tractor‑trailer combinations) or systems whose primary function is lateral control rather than driver warning.

Key topics and requirements

• Definitions and system architecture categories for LCDAS (sensor types, signal processing, HMI).
• Coverage zones: adjacent (side) zones and rear/diagonal rear zones with quantified spatial extents.
• Performance metrics: detection rate requirements, allowable false‑alarm rates, time‑to‑collision (TTC) thresholds and warning timing.
• Test procedures: reproducible scenarios for blind‑spot, approaching‑rear and lane‑change initiation tests under controlled speeds, relative velocities and TTC conditions.
• Human‑machine interface requirements: warning modalities (visual, audible, haptic), prioritized warning levels and ergonomic considerations.
• Environmental and robustness tests: day/night operation, reduced visibility (rain/fog), road curvature and sensor occlusion/contamination effects.
• Limitations and user responsibility: explicit statement that LCDAS assist but do not replace driver judgement; required user information and system limitations documentation.

Typical use and users

Primary users include vehicle manufacturers (OEMs), supplier companies designing radar/lidar/camera‑based blind‑spot and lane‑change aids, ADAS system integrators, test laboratories and certification bodies, regulatory agencies and research groups working on vehicle safety and intelligent transport systems. The standard is used to specify system requirements, derive test plans and demonstrate that LCDAS implementations meet reproducible performance criteria.

Related standards

Relevant standards and specifications commonly used alongside ISO 17387 include ISO 26262 (Road vehicles — Functional safety), ISO 21448 (SOTIF — Safety of the intended functionality), SAE J3016 (Definitions of driving automation levels) and other ITS/ADAS test and safety guidance documents. Manufacturers also consider UNECE and regional vehicle safety regulations and harmonized test protocols when implementing LCDAS.

Keywords

LCDAS, lane change decision aid, lane change assistance, blind‑spot detection, ADAS, intelligent transport systems, performance requirements, test procedures, human‑machine interface, time‑to‑collision (TTC), detection zones.

FAQ

Q: What is this standard?

A: ISO 17387:2008 is an International Standard that defines performance requirements and test procedures for Lane Change Decision Aid Systems (LCDAS), the ADAS features that warn drivers about vehicles to the side or rear during lane changes.

Q: What does it cover?

A: It covers system definitions, detection zone definitions, quantified performance metrics (detection and false‑alarm rates, TTC/warning timing), reproducible test scenarios and procedures, environmental robustness tests, and human‑machine interface requirements for warnings.

Q: Who typically uses it?

A: Vehicle OEMs, ADAS component suppliers (radar, lidar, camera), test houses, certification bodies, regulators and researchers use it to specify, validate and demonstrate LCDAS performance.

Q: Is it current or superseded?

A: The 2008 edition was published May 2008 and was reviewed and confirmed in 2018; it remains the published edition but is listed for future revision. Users should check with standards bodies or national adoptive organizations for any active revision or replacement projects.

Q: Is it part of a series?

A: ISO 17387 sits within the family of intelligent transport systems (ITS) standards developed by ISO/TC 204. It is commonly referenced alongside broader vehicle safety and ADAS standards such as ISO 26262 (functional safety) and ISO 21448 (SOTIF).

Q: What are the key keywords?

A: Lane change decision aid, LCDAS, blind‑spot detection, ADAS, ITS, test procedures, detection zones, human‑machine interface, performance requirements, time‑to‑collision.