Citation

Chen WH, Zeng JJ, Kao KC. Proc. Int. Tech. Conf. Enhanced Safety Vehicles 2005; 2005: 5p.

Copyright

(Copyright © 2005, In public domain, Publisher National Highway Traffic Safety Administration)

DOI

unavailable

PMID

unavailable

Abstract

In-vehicle information systems (IVIS) have become popular; IVIS could be used to provide drivers with a variety of information (e.g., en-route guidance information and collision warning information) via different in-vehicle devices. In Taiwan, some aggressive driving behaviors are observed such as tailgating (close following) and violating traffic signals. Intersection collision warning system (ICWS) provided by IVIS could be used for avoiding the accidents due to violating traffic signals. This study employed a driving simulator to investigate the influence of auditory collision warning messages on drivers’ perception-reaction times and workload when the drivers were visually or audibly distracted by secondary tasks via different IVIS devices. The secondary task was to solve simple mathematical problems displayed to the driver three different formats: voice, numbers shown on a liquid crystal display (LCD) panel, and number shown on a heads-up display (HUD). The most important finding of the study was that the auditory collision warning message was capable of decreasing drivers’ perception-reaction times when the drivers were visually distracted by the mathematical problems shown on the LCD panel or the HUD. However, when the drivers were distracted by an auditory task (i.e., hearing mathematical problems), the auditory collision warning message increased drivers’ perception-reaction times.