Highlights Sequence of events data from five years (2015-2019) of California automated vehicle (AV) crash reports were analyzed. The most representative subsequence was “collision following AV stop”. Disengagements were observed in 24% of AV crash sequences and were mostly (68%) followed by immediate collisions between the AV and other road users/objects. Crash sequences clustered into seven groups, each with a distinctive representative subsequence, presenting unique dynamics in AV crash progression. AV crash sequence groups were significantly associated with crash outcome and environmental condition variables. AV crash sequences have potential uses in developing AV test scenarios and be embedded as a core component of proposed scenario-based AV safety testing framework.

    Abstract With safety being one of the primary motivations for developing automated vehicles (AVs), extensive field and simulation tests are being carried out to ensure AVs can operate safely on roadways. Since 2014, the California Department of Motor Vehicles (DMV) has been collecting AV collision and disengagement reports, which are valuable data sources for studying AV crash patterns. A crash sequence of events describes the AV’s interactions with other road users before a collision in a temporal manner. In this study, sequence of events data extracted from California AV collision reports were used to investigate patterns and how they may be used to develop AV test scenarios. Employing sequence analysis methods and clustering, this study evaluated 168 AV crashes (with AV in automatic driving mode before disengagement or collision) reported to the California DMV from 2015 to 2019. Analysis of subsequences showed that the most representative pattern in AV crashes was “collision following AV stop”. Analysis of event transition showed that disengagement, as an event in 24% of all studied AV crash sequences, had a transition probability of 68% to an immediate collision. Cluster analysis characterized AV crash sequences into seven groups with distinctive crash dynamic features. Cross-tabulation analysis showed that sequence groups were significantly associated with variables measuring crash outcomes and describing environmental conditions. Crash sequences are useful for developing AV test scenarios. Based on the findings, a scenario-based AV safety testing framework was proposed with sequence of events embedded as a core component.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Automated vehicle crash sequences: Patterns and potential uses in safety testing


    Beteiligte:
    Song, Yu (Autor:in) / Chitturi, Madhav V. (Autor:in) / Noyce, David A. (Autor:in)


    Erscheinungsdatum :

    2021-01-29




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Heavy vehicle crash safety : improved thoracic injury prediction in frontal crash testing

    Holmqvist, Kristian / Chalmers tekniska högskola | TIBKAT | 2016


    Vehicle crash testing

    Macaulay, M. A. | TIBKAT | 1971


    Car Crash and Safety Testing

    Ardoino, P. / Instituto Superior Tecnico; Instituto de Engenharia Mecanica | British Library Conference Proceedings | 1997


    Frontal Crash Testing and Vehicle Safety Designs: A Historical Perspective Based on Crash Test Studies

    Digges, Kennerly / Authaler, Michaela / Samaha, Randa Radwan et al. | SAE Technical Papers | 2010


    Crash Research for Vehicle Safety

    Kelly, Alonzo H. / LaBelle, Donald J. / Lundstrom, Louis C. | SAE Technical Papers | 1964