Ngaphezu kwesiqingatha selizwe, amazwe angama-30, ngoku abhengeze ukuba azakumisa ukufakelwa kwenkqubo yokugada ezindleleni zelizwe lonke, emva kokuba abagxeki besithi yayisisigqubuthelo sotshintsho oluyingozi kuyilo lonogada olubangele phantse. kwiminyaka elishumi elinesibini eyadlulayo.
I-jury yaseTexas ifunyenwe ekuqaleni kwale nyanga ukuba umenzi we-Guardrail iTrinity Industries yamqhatha urhulumente ngokwenza utshintsho ngo-2005 ngaphandle kokwazisa amagosa ezothutho karhulumente okanye urhulumente, kwaye amazwe amaninzi abhengeze ukumiswa kwe-ET-Plus guardrails.then.Trinity wayalelwa ukuba ahlawule malunga ne-175 yezigidi zeedola. kumonakalo – imali elindeleke ukuba iphindaphindeke kathathu phantsi kogunyaziwe osemthethweni.
Amashumi amathathu amazwe athi awasayi kuphinda afakele inkqubo ye-ET-Plus, kunye nezongezo zakutsha nje yiKentucky, Tennessee, Kansas, Georgia kunye nekhaya likaTrinity eTexas. , kodwa unokucinga ukubashiya endaweni ukuba uBathathu Emnye unokungqina ukuba iinguqulelo ezilungisiweyo zikhuselekile.
Inkqubo ye-ET-Plus yayingumxholo weNdaba ze-ABC "20/20" yophando ngoSeptemba, eyayiqwalasela amabango amaxhoba engozi ukuba iindlela zokugada ezilungisiweyo ziza kungasebenzi kakuhle xa sibethwa sisithuthi esisuka ngaphambili. ngokwendlela eyilwe ngayo, i- guardrail “iyatshixa” ize ingene ngqo emotweni, kwezinye iimeko iqhawula amalungu omqhubi.
Ngokutsho kwe-imeyile yangaphakathi efunyenwe yi-ABC News, igosa lenkampani liqikelele ukuba utshintsho oluthile - ukunciphisa iqhekeza lesinyithi ekupheleni kwe-guardrail ukusuka kwi-intshi ezi-5 ukuya ku-4 intshi - kuya kusindisa inkampani ye-$ 2 nganye., okanye ii-$50,000 ngonyaka.
I-Federal Highway Administration inike uBathathu Emnye kude kube ngo-Oct. 31 ukuba angenise izicwangciso zokuvavanya i-guardrails okanye ukujongana nezicwangciso zokumisa ukuthengiswa kwayo kwilizwe lonke.Ezinye ze-28 zithi i-ET-Plus yokuvalwa kwendawo ubuncinane de iziphumo zezo ngozi. iimvavanyo ziyafumaneka.
UZiqu-zintathu uye wahlala egcina ukuba i-Guardrails ikhuselekile, iphawula ukuba i-FHWA ivume ukusetyenziswa kwe-Guardrails ehlaziyiweyo kwi-2012 emva kokuphakamisa imibuzo malunga nokuguqulwa. kwintsebenzo kunye nokuthembeka kwenkqubo ye-ET-Plus.