Decompartmentalising road safety barrier stiffness in the context of vehicle occupant risk

Road safety barriers are selected for deployment on the basis of four basic criteria; costs, deflection performance, containment capacity, and severity outcomes. System specific severity risk to occupants of errant vehicles is not well established. Contemporary technical governance in the Australian context recognises three generic barrier types discerned by relative stiffness: rigid, semi-rigid, and flexible. This study explores how the occupant severity indicator Acceleration Severity Index (ASI) varies as a function of impact configuration and system stiffness. This study demonstrates that systems available to road safety practitioners may be better served by a continuum rather than a generic classification system.

[1]  Roger P Bligh,et al.  TESTING OF STATE ROADSIDE SAFETY SYSTEMS. VOLUME I: TECHNICAL REPORT , 1996 .

[2]  Dean L Sicking,et al.  BENEFIT-COST ANALYSIS OF ROADSIDE SAFETY ALTERNATIVES , 1986 .

[3]  Chris Jurewicz,et al.  Improving Roadside Safety: Summary Report , 2014 .

[4]  J D Michie,et al.  RECOMMENDED PROCEDURES FOR THE SAFETY PERFORMANCE EVALUATION OF HIGHWAY APPURTENANCES , 1981 .

[5]  Chris Jurewicz,et al.  Australian National Risk Assessment Model , 2014 .

[6]  Raphael H. Grzebieta,et al.  Roadside crash barrier testing , 2002 .

[7]  R A Zimmer,et al.  RECOMMENDED PROCEDURES FOR THE SAFETY PERFORMANCE EVALUATION OF HIGHWAY FEATURES , 1993 .

[8]  D. Gabauer.  Evaluation of the Acceleration Severity Index Threshold Values Utilizing Event Data Recorder Technology , 2005 .

[9]  Gary Veith,et al.  Guide to road design: part 6: roadside design, safety and barriers , 2009 .

[10]  G D Weaver,et al.  Selection of safety roadside cross sections , 1975 .

[11]  B R Hammonds,et al.  Crash test outcomes for three generic barrier types , 2012 .

[12]  Raphael H. Grzebieta,et al.  Interactions between guardrails, cars and passive safety systems , 2000 .

[13]  Daniel A. Naish,et al.  Occupant severity prediction from simulation of small car impact with various concrete barrier profiles , 2015 .

[14]  J D Michie,et al.  GUARDRAIL PERFORMANCE AND DESIGN , 1971 .

[15]  Wanda L Menges,et al.  Crash Testing and Evaluation of the Florida/Jersey Safety-Shaped Bridge Rail , 2007 .

[16]  Chuck A. Plaxico,et al.  Impact Performance of the G4(1W) and G4(2W) Guardrail Systems: Comparison Under NCHRP Report 350 Test 3-11 Conditions , 2000 .

[17]  Ronald K Faller,et al.  Midwest Guardrail System without Blockouts , 2013 .

[18]  Anders Kullgren,et al.  DEVELOPMENT OF A CRASHWORTHY SYSTEM: INTERACTION BETWEEN CAR STRUCTURAL INTEGRITY, RESTRAINT SYSTEMS AND GUARDRAILS , 2001 .