On credibility improvements for automotive navigation systems

  • Authors:

  • Florian Schaub;Markus Hipp;Frank Kargl;Michael Weber

  • Affiliations:

  • Institute of Media Informatics, Ulm University, Ulm, Germany 89069;Institute of Databases and Information Systems, Ulm University, Ulm, Germany 89069;Institute of Distributed Systems, Ulm University, Ulm, Germany 89069 and DIES Research Group, University of Twente, Enschede, The Netherlands 7500 AE;Institute of Media Informatics, Ulm University, Ulm, Germany 89069

  • Venue:
  • Personal and Ubiquitous Computing
  • Year:
  • 2013

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Abstract

Automotive navigation systems are becoming ubiquitous as driver assistance systems. Vendors continuously aim to enhance route guidance by adding new features to their systems. However, we found in an analysis of current navigation systems that many share interaction weaknesses, which can damage the system's credibility. Such issues are most prevalent when selecting a route, deviating from the route intentionally, or when systems react to dynamic traffic warnings. In this work, we analyze the impact on credibility and propose improved interaction mechanisms to enhance perceived credibility of navigation systems. We improve route selection and the integration of dynamic traffic warnings by optimizing route comparability with relevance-based information display. Further, we show how bidirectional communication between driver and device can be enhanced to achieve a better mapping between device behavior and driver intention. We evaluated the proposed mechanisms in a comparative user study and present results that confirm positive effects on perceived credibility.