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Traffic Light Assistant -What the UsersWant

Authors:
Michael Krause
Alexander Rissel
Klaus Bengler

Keywords: in-vehicle information system; IVIS; nomadic device; tactile detection task; TDT; glance duration

Abstract:
In a driving simulator experiment, a prototypical traffic light phase assistant is assessed. The main research issue: How would a user customize the system? As a sideline, data is gathered with a special Detection Response Task (DRT), the Tactile Detection Task (TDT), in conjunction with an auditory cognitive task as reference. Recorded gaze data, driving behavior, subjective ratings with a System Usability Scale (SUS) and an AttrakDiff2-questionnaire are also reported. The subjects were able to customize ten parameters of the traffic light assistant system. The so personalized system configuration showed no great enhancement in the subjective ratings; thus, the later application implementation will include only little configuration features for the user. However, the test persons exhibited a willingness to be informed about speeding by a speed alerting function within the traffic light assistant system. The performance (reaction time) of the TDT is interpreted as a measure for the cognitive load while using the interface. The auditory cognitive task prolonged the reaction times for a tactile detection task more than the traffic light information system. The glance times are in line with current guidlines and the driving behavior shows a potential benefit for safety. Thus, the reported experiment evaluates an interface for use while driving with objective metrics regarding distraction and subjective results related to usability and joy-of-use.

Pages: 235 to 241

Copyright: Copyright (c) IARIA, 2014

Publication date: March 23, 2014

Published in: conference

ISSN: 2308-4138

ISBN: 978-1-61208-325-4

Location: Barcelona, Spain

Dates: from March 23, 2014 to March 27, 2014