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On-road assessment of in-vehicle driving workload for older drivers: Design guidelines for intelligent vehicles

On-road assessment of in-vehicle driving workload for older drivers: Design guidelines for intelligent vehicles
Kim, Man HoSon, Joonwoo
Issued Date
International Journal of Automotive Technology, v.12, no.2, pp.265 - 272
Author Keywords
DistractionDriving workloadHuman vehicle interface (HVI)In-vehicle information system (IVIS)NASA task load index (TLX)Older drivers
AgeAutomobile DriversBEHAVIORCognitive WorkloadDistractionDriving WorkloadENVIRONMENTHighway AccidentsHighway PlanningHuman-Vehicle InterfaceHuman Vehicle Interface (HVI)In-Vehicle Information System (IVIS)INFORMATION-systemSInformation SystemsIntelligent Vehicle Highway SystemsLOADNASANasa Task Load Index (TLX)Older DriversPERFORMANCEPopulation StatisticsRoads and StreetsVehicles
There has been recent interest in intelligent vehicle technologies, such as advanced driver assistance systems (ADASs) or in-vehicle information systems (IVISs), that offer a significant enhancement of safety and convenience to drivers and passengers. However, the use of ADAS- and IVIS-based information devices may increase driver distraction and workload, which in turn can increase the chance of traffic accidents. The number of traffic accidents involving older drivers that are due to distraction, misjudgment, and delayed detection of danger, all of which are related to the drivers' declining physical and cognitive capabilities, has increased. Because the death rate in traffic accidents is higher when older drivers are involved, finding ways to reduce the distraction and workload of older drivers is important. This paper generalizes driver information device operations and assesses the workload while driving by means of experiments involving 40 drivers in real cars under actual road conditions. Five driving tasks (manual only, manual primarily, visual only, visual primarily, and visual-manual) and three age groups (younger (20-29 years of age), middle-aged (40-49 years of age), and older (60-69 years of age)) were considered in investigating the effect of age-related workload difference. Data were collected from 40 drivers who drove in a real car under actual road conditions. The experimental results showed that age influences driver workload while performing in-vehicle tasks. © 2011 The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg.
Korean Society of Automotive Engineers
Related Researcher
  • 손준우 Son, Joonwoo 전자정보시스템연구부
  • Research Interests
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Division of Electronics & Information System 1. Journal Articles


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