Citation

Totzke I, Schoch S, Kruger HP. VDI Berichte 2006; 2006(1960): 403-419.

Affiliation

IZVW, Wurzburg.

Copyright

(Copyright © 2006, VDI Verlag)

DOI

unavailable

PMID

unavailable

Abstract

Driver information systems may lead to detrimental effects in driving which may be counteracted by ADAS. However, existing ADAS (e.g. ACC, HC) only lead to a non-specific compensation of possible effects of secondary tasks while driving. Therefore, an alternative is introduced which informs the driver that he has been handling the information system too long (here: 2s) and that he should guide his concentration on driving. By this so-called "task-timer" an optimal time-sharing ability shall be trained. In contrast to this, a combined "lane-position-headway-warning" is introduced which informs the driver about critical lane positions and headways (close following) while handling the information system. An empirical study with N = 24 subjects (driving simulation with movement system) was conducted. Half of the subjects drove with the "task-timer" or "lane-position-headway- warning", respectively. As menu structure was identified as one difficulty relevant aspect of information systems half of the subjects of each group had to handle a broad or a deep menu system while driving. The introduction of the "task-timer" leads to a deterioration of menu handling and to higher driver workload. However, detrimental effects of menu handling on driving are not as aggravating. In general, the subjects accept the concept of a "task-timer". Therefore, further empirical studies are required which particularly deal with an optimal ergonomic design of the so-called task-timer.