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Title: Simulation of Motorcyclist Impacts with Rub-Rail Roadside Barrier Modifications
Accession Number: 01676070
Record Type: Component
Record URL: Availability: Find a library where document is available Abstract: The Australian and New Zealand Road Safety Barrier Systems and Devices Standard AS/NZS 3845.1:2014 recently introduced a crash test requirement for devices intended to improve the safety of roadside barriers for motorcyclists. The crash test is based on the European CEN technical specification CEN/TS 1317-8:2012. While this crash test protocol has been demonstrated to be a robust procedure, with many crash tests performed in Europe, there are some limitations (typical to crash testing): only one impact trajectory is tested; the head-leading orientation does not consider direct chest impacts and associated injuries; and the crash test uses a Hybrid III Anthropomorphic Test Dummy (ATD), which has proven bio-fidelity, but does have limitations (particularly under vertical head–neck axis loading and side impacts to the thorax in the coronal plane). Considering the limitations of crash testing, a human body finite element (FE) model was used to assess human kinematics and injury potential for a wide range of sliding impact configurations, thereby assessing devices for a full range of field-observed collision modes. This paper provides a summary of the findings. Collisions with unprotected W-beam posts present a severe injury potential for a sliding motorcyclist, even at relatively low speeds. The Australian rub-rail device successfully redirected the motorcyclist and prevented a post impact, thereby greatly reducing the injury potential. This study found that the rub-rail will likely prevent serious thoracic injury at all practical impact angles and speeds, and will likely prevent serious head–neck injury at lowimpact angles and higher-impact angles at low speeds. However, the potential for severe head– neck injury exists at high angles and high speeds. While European crash tests with ATDs have demonstrated that rub-rails prevent serious injury for head-leading sliding collisions at 30° and 60 km/h, this study compliments these results, and demonstrates the substantial injury reduction potential of rub-rail devices for a wide range of other collision orientations observed in the field.
Monograph Title: Roadside Safety Design and Devices: International Workshop, March 26, 2015, Melbourne, Australia Monograph Accession #: 01643015
Language: English
Authors: Bambach, MikeGrzebieta, RaphaelEditors: Troutbeck, RodBurbridge, AndrewPagination: pp 125-129
Publication Date: 2016-11
Serial: Conference:
Roadside Safety Design and Devices: International Workshop 2015
Location:
Melbourne , Australia Media Type: Digital/other
Features: Figures; Photos; References; Tables
TRT Terms: Geographic Terms: Subject Areas: Highways; Safety and Human Factors
Files: TRIS, TRB, ATRI
Created Date: Jul 24 2018 3:22PM
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