Semi-automated versus highly automated driving in critical situations caused by automation failures
Artikel i vetenskaplig tidskrift, 2014

The purpose of this study was to examine the effects of vehicle automation and automation failures on driving performance. Previous studies have revealed problems with driving performance in situations with automation failures and attributed this to drivers being out-of-the-loop. It was therefore hypothesized that driving performance is safer with lower than with higher levels of automation. Furthermore, it was hypothesized that driving performance would be affected by the extent of the automation failure. A moving base driving simulator was used. The design contained semi-automated and highly automated driving combined with complete, severe, and moderate deceleration failures. In total the study involved 36 participants. The results indicate that driving performance degrades when the level of automation increases. Furthermore, it is indicated that car drivers are worse at handling complete than partial deceleration failures.

Driving performance

Automated driving

Adaptive Cruise Control


Vehicle automation

Automation failures

Out-of-the-loop performance


Niklas Strand

Chalmers, Produkt- och produktionsutveckling, Design and Human Factors

SAFER, Fordons- och trafiksäkerhetscentrum

Josef Nilsson

SAFER, Fordons- och trafiksäkerhetscentrum

Chalmers, Signaler och system, System- och reglerteknik, Mekatronik

MariAnne Karlsson

Chalmers, Produkt- och produktionsutveckling, Design and Human Factors

Lena Nilsson

Statens Väg- och Transportforskningsinstitut (VTI)

SAFER, Fordons- och trafiksäkerhetscentrum

Transportation Research Part F: Traffic Psychology and Behaviour

1369-8478 (ISSN)

Vol. 27 PB 218-228




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