To cite this article:
Giovanni Savino, Marco Pierini, Matteo Rizzi & Richard Frampton (2013): Evaluation of an Autonomous Braking System in Real-World PTW Crashes, Traffic Injury Prevention, 14:5, 532-543.
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Evaluation of an autonomous braking system in real world PTW crashes
Abstract
Powered two wheelers (PTWs) are becoming increasingly popular in Europe. They have the ability to get
around traffic queues, thus lowering fuel consumption and increasing mobility. The risk of rider injury in a traffic crash is however much higher than
that for their four wheeled counterparts. The European project Powered two wheeler Integrated Safety
(PISa), identified an autonomous braking system
(AB) as a priority to reduce the injury consequences
of a crash. This study assessed the potential effectiveness of the AB system developed in PISa, taking
into account the specific system characteristics that
emerged during the design, development and testing phases. Fifty eight PTW accidents representing
European crash configurations were examined. Two
of the largest crash types were a PTW impacting a
stationary object (CFS, 16%) and an object pulling
across the PTW path (CRS, 54%). 43% of the
crashes contained a rider with MAIS 2+ injury. In
67% of cases, the application of AB could have mitigated the crash outcome. Analysis of the real crash
cases under a complete set of possible rider reactions
showed the potential for an expert rider to avoid the
collision. An early reaction of the rider, associated
with a correct application of the brakes would have
avoided 18 out of 37 CFS and CRS crashes. Conversely, according to the analysis, an expert rider
would not have been able to avoid 19 out of 37 cases.
In 14 of the 19 cases, the AB would have contributed
to mitigate the crash outcomes.
This is an Author's Original Manuscript of an article submitted for consideration in Traffic Injury Prevention (copyright Taylor & Francis); Traffic Injury Prevention is available online at http://www.tandfonline.com/10.1080/15389588.2012.725878
This is an Author's Original Manuscript of an article submitted for consideration in Traffic Injury Prevention (copyright Taylor & Francis); Traffic Injury Prevention is available online at http://www.tandfonline.com/10.1080/15389588.2012.725878
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