Location

Salt Lake City, Utah

Date

23-6-2015

Session

Session 3 – Poster Session A

Abstract

Age-related declines in cognitive functioning can push older adults to adopt strategies that may or may not improve their driving safety. Previous research suggests one strategy involves performing complex driving tasks (e.g., right turn negotiation) in discrete steps (“serialization”) rather than fluidly. The current study used simulator scenarios developed to test possible age-related serialization of behavior during complex car following. In all scenarios, participants closely monitored a lead vehicle using sustained attention. During multi-tasking scenarios, drivers performed an additional localization task designed to increase the demands on attention. The results demonstrate that older adults showed general impairments in multi-tasking and vehicle control during car following. Importantly, ageassociated changes in task execution were observed, demonstrating older adults also serialize car following behavior under certain conditions. As a result, older drivers withdrew attention from the lead vehicle for several seconds. This pattern of behavior identifies a remediable situation where age-associated impairments may increase crash risk.

Rights

Copyright © 2015 the author(s)

DC Citation

Proceedings of the Eighth International Driving Symposium on Human Factors in Driver Assessment, Training and Vehicle Design, June 22-25, 2015, Salt Lake City, Utah. Iowa City, IA: Public Policy Center, University of Iowa, 2015: 84-90.

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Jun 23rd, 12:00 AM

Serialization of Behavior During Car Following in Older Drivers

Salt Lake City, Utah

Age-related declines in cognitive functioning can push older adults to adopt strategies that may or may not improve their driving safety. Previous research suggests one strategy involves performing complex driving tasks (e.g., right turn negotiation) in discrete steps (“serialization”) rather than fluidly. The current study used simulator scenarios developed to test possible age-related serialization of behavior during complex car following. In all scenarios, participants closely monitored a lead vehicle using sustained attention. During multi-tasking scenarios, drivers performed an additional localization task designed to increase the demands on attention. The results demonstrate that older adults showed general impairments in multi-tasking and vehicle control during car following. Importantly, ageassociated changes in task execution were observed, demonstrating older adults also serialize car following behavior under certain conditions. As a result, older drivers withdrew attention from the lead vehicle for several seconds. This pattern of behavior identifies a remediable situation where age-associated impairments may increase crash risk.