ISO 26022:2010

Overview

ISO 26022:2010 - "Road vehicles - Ergonomic aspects of transport information and control systems - Simulated lane change test to assess in-vehicle secondary task demand" - defines a laboratory-based Simulated Lane Change Test (LCT). The standard specifies a dynamic dual‑task method that quantifies driver performance degradation on a primary driving‑like task while a secondary in‑vehicle task (visual, manual, haptic, auditory or combinations) is performed. The result is an estimate of secondary task demand for passenger‑car operation.

Key topics and technical requirements

• Test principle: Dual‑task LCT with a constant system‑limited speed of 60 km/h on a straight three‑lane simulated track; primary task = timed lane changes prompted by signs.
• Applicability: Evaluates interactions with OEM or aftermarket, portable or integrated in‑vehicle information, communication, entertainment and control systems. Not suitable for secondary tasks that require speed changes.
• Participants: Licensed drivers with comparable familiarity; minimum 16 participants for within‑subject evaluations.
• Display & simulation:
  • Visual display refresh rate ≥ 50 Hz, minimum resolution 1024 × 768 (24‑bit color).
  • Simulation update rate ≥ 100 Hz; recording of vehicle parameters at ≥ 10 Hz.
  • Overall transport delay (input to visual response) < 120 ms.
• Steering & vehicle dynamics:
  • Steering rim tangential force ≤ 20 N; optional centering force ≤ 12 N.
  • Steering sensor resolution < 1.5°; vehicle yaw dynamics modeled to approximate a typical passenger car.
• Measurements & metrics:
  • Path deviation measures (mdev) and LCT metric calculations (normative guidance in annexes).
  • Procedures for experimental design, data collection, statistical analysis and validation included.
• Documentation: Normative and informative annexes cover participant instructions, experimental plans, rationale, adapting LCT to real vehicles, metric calculation and validation.

Applications and who uses it

ISO 26022:2010 is practical for:

• Automotive OEMs and HMI designers comparing in‑vehicle interface concepts.
• Aftermarket and portable device manufacturers assessing distraction risk.
• Human factors and usability researchers conducting controlled lab or simulator studies.
• Safety assessors and regulators seeking standardized measures of secondary task demand.
• Use cases include prototype evaluation, comparative HMI testing, usability benchmarking and research into driver distraction.

Related standards

• ISO 26022 complements other road‑vehicle ergonomics and human‑factors standards from ISO/TC 22 (road vehicles). Users often combine LCT results with broader human‑machine interface (HMI) and driver distraction guidelines when assessing in‑vehicle systems.

Keywords: ISO 26022:2010, Simulated Lane Change Test, LCT, in‑vehicle systems, secondary task demand, driver distraction, ergonomics, driving simulator, OEM, human factors.