Release10/14TRACCislicensedtoIngalCivilProductsbyTrinityIndustriesInc.oftheU.S.A.TRACCCrashattenuationcushionwww.ingalcivil.com.auProductManualTRACCCrashattenuationcushion2Release10/141.0IntroductionCrashcushions,alsocalledimpactattenuators,preventerrantvehiclesfromimpactingabarrierorfixedobjecthazardeitherbygraduallydeceleratingthevehicle,orbyredirectingthevehicleawayfromthehazard.Theyareideallysuitedforterminatingconcretebarriersorforusewherelongitudinalbarrierswouldnotbeeffectivetoshieldobjects.The2005TRACCfamilyofcrashcushionsarefullyredirective,non-gating,bi-directionalenergyabsorbing,designedtoprotectmotoristsfromimpactingtheendofconcretebarriers,tollplazas,bridgepiersandotherhazardsinbothtemporaryandpermanentworkzonelocations.The2005TRACCfamilyincludes;•TRACC–anarrowTestLevel3cushion•ShorTRACC–anarrowTestLevel2cushion•FasTRACC–anarrowTestLevel3cushionwithadditionalcapacityforhead-onimpactsupto110km/h•WideTRACC–awideTestLevel3cushionforanylargegoreareas2.0CrashPerformanceAll2005TRACCproductsmeettherequirementsof;•AustralianStandardsAS/NZS3845:1999•NationalCooperativeHighwayResearchProgram(NCHRP)Report350Thesystemsaredesignedtoperformasfollows;•Redirectsideimpactsofupto20°degreeswiththeaxisofthesystem•Controlledstoppingforimpactsattheendsofthesystematanglesofupto15°3.0ConfigurationOptionsThe2005TRACCfamilyofcrashcushionsareavailableinseveralconfigurationsasshowninTable1.TheWideTRACCoffersvariousoptionsinprotectingwidehazardsandgores.TheWideTRACCcanbeflareddownitsrightsideonly(R),itsleftsideonly(L)ordownbothsidessimultaneously(B).Table1:ConfigurationOptions*TestLevel3+indicatesthattheFasTRACChasbeencrashtestedat110km/hwhichexceedsthenormalTestLevel3impactof100km/h.**ThewidthoftheWideTRACC–Bcanbefurtherincreasedbyaddingwingextensionsonbothsides.Theextensionswilladd710mmoflengthand175mmofsystemwidthperextensionadded.***ThewidthoftheWideTRACC–Land–Rcanbefurtherincreasedbyaddingwingextensionsononeside.Theextensionswilladd710mmoflengthand87mmofsystemwidthperextensionadded.TheextensionsattachedtotherearoftheWideTRACCconsistsofapairofguardrailpanelscontinuingtheheightandflareangleoftheWideTRACCsidepanels.Thepanelsaresupportedbyspeciallydesigned,bracedbase-platedposts.Thelowerpanelisfurthersupportedbyachannelthatisinstalledbetweenthepostandtheguardrail.Figure1:WideTRACCConfigurationsSystemTestLevelWidthLengthTRACC3610mm6.5mShorTRACC2610mm4.3mFasTRACC3+*610mm7.9mWideTRACC-B31470mm**6.5m**WideTRACC-L31040mm***6.5m***WideTRACC-R31040mm***6.5m***LeftSideFlared-WideTRACC-LRightSideFlared-WideTRACC-RBothSidesFlared-WideTRACC-BTRACCCrashattenuationcushion3Release10/144.0LocationRequirements4.1UnidirectionalApplicationsInstallationoftheTRACCsystemanditstransitionsdependsonthetrafficpatternandthebackupstructureattheparticularlocation.Unidirectionaltraffic(onesideorboth)requiresnotransitionprovidedtheunitisinstalledbeyondtheclearzoneofopposingtraffic.Theclearzoneisdefinedasthehorizontalwidthofspaceavailableforthesafeuseofanerrantvehicle.Theclearzonewidthisdependentupontrafficvolume,speedandroadgeometry.Foropposingtraffictheclearzonewilltakeintoconsiderationthewidthofthemedian.Thebackupframeprovidesaholepatternallowingattachmenttoavarietyofconcretebarrierprofiles.Ingalcanprovideadaptorsfornon-standardprofiles.Figure2:TRACCLocatedOutsidetheClearZoneofOpposingTraffic-No...