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Measuring the effects of visual demand on lateral deviation: a comparison among driver's performance indicators
Luca Minin1, Simone Benedetto, Marco Pedrotti
1Università degli studi di Modena e Reggio Emilia, Dipartimento di Scienze e Metodi per l'Ingegneria, via Amendola 02, Padiglione Morselli, 42122 Reggio Emilia, Italy. luca.minin@unimore.it
Applied Ergonomics
|September 16, 2011
Summary
The Adapted Lane Change Test (LCT) effectively detects driver performance changes during secondary tasks. However, the Normative LCT and High Frequency Component (HFC) of steering wheel data were not reliable indicators.
Area of Science:
- Human-Computer Interaction
- Automotive Safety
- Cognitive Psychology
Background:
- Driver performance monitoring is crucial for road safety.
- Secondary tasks can impair driving performance.
- Existing indicators like High Frequency Component (HFC) and Normative Lane Change Test (LCT) may not accurately reflect performance degradation.
Purpose of the Study:
- To compare the efficacy of three driver performance indicators: HFC, Normative LCT, and Adapted LCT.
- To identify reliable indicators for detecting performance degradation due to secondary tasks.
Main Methods:
- Sixteen participants performed a simulated lane-change task.
- Participants also completed a visual search task with two difficulty levels.
- Efficacy of HFC, Normative LCT, and Adapted LCT was evaluated based on lateral deviation.
Main Results:
- The Adapted LCT successfully discriminated between single and dual-task conditions.
- The Adapted LCT also differentiated between easy and difficult secondary tasks.
- Normative LCT and HFC did not reliably indicate performance degradation in the simulated task.
Conclusions:
- The Adapted LCT is a promising indicator for assessing driver performance under cognitive load.
- Normative LCT and HFC require further investigation or refinement for detecting driving impairments.
- Individual driving practices should be considered when evaluating driver performance indicators.
