- Inopfuura hafu yenyika, nyika makumi matatu, zvino vazivisa kuti vachamisa kumwe kuisirwa kwegakava rekuchengetedza nzira mumigwagwa yemunyika, mushure mekunge vatsoropodzi vataura kuti kwaive kuvharidzira shanduko ine njodzi mukugadzira dhizaini iyo yakonzera kupotsa. makore gumi nemaviri apfuura.
Dare redzimhosva rekuTexas rakawana kutanga kwemwedzi uno kuti vanogadzira gadhirail reTrinity Industries vakanyengedza hurumende nekuita shanduko muna 2005 vasina kuzivisa vakuru vezvekutakurwa kwehurumende kana vehurumende, uye nyika zhinji dzakazivisa kumisa ET-Plus guardrails itsva.then.Trinity akanzi abhadhare mari inosvika mamiriyoni zana nemakumi manomwe nemashanu emadhora. mukukuvadzwa - mari inotarisirwa kuwedzera katatu pasi pesimba remutemo.
Matunhu makumi matatu akati haachasi kuzoisa ET-Plus system, mamwe achangobva kuwedzera ari Kentucky, Tennessee, Kansas, Georgia neTrinity mudunhu reTexas. , asi ungafunga kuzvisiya panzvimbo kana Tiriniti achigona kuratidza kuti shanduro dzakagadziridzwa dzakachengeteka.
Iyo ET-Plus system yaive nyaya yeABC Nhau "20/20" kuferefeta munaGunyana, iyo yaitarisa zvakataurwa nevanhu vakawirwa netsaona iyo yakagadziridzwa magadhi aizotadza kushanda kana yarohwa nemotokari kubva kumberi. sezvakarongwa, njanji inorinda “inokiya” uye inopinda yakananga mumotokari, pane dzimwe nguva ichicheka makumbo omutyairi.
Zvinoenderana neemail yemukati yakawanikwa neABC News, mukuru wekambani akafungidzira kuti imwe shanduko - kudzikisa chidimbu chesimbi pakupera kweguardrail kubva pa5 inches kusvika 4 inches - yaizochengetedza kambani $2 per guardrail., kana kuti $50,000 pagore.
Federal Highway Administration yakapa Tiriniti kusvika Gumiguru 31 kuti ipe hurongwa hwekupunzika-test maguardrails kana kutarisana nehurongwa hwekumisa kutengesa kwayo munyika yose.Dzimwe dze28 states dzakati ET-Plus inorambidza iripo kusvika mhedzisiro yekuparara ikoko. bvunzo dziripo.
Tiriniti yakagara ichichengetedza kuti mauto ekuchengetedza akachengeteka, achicherechedza kuti FHWA yakabvumira kushandiswa kwezvigadziridzo zvakagadziridzwa muna 2012 mushure mokumutsa mibvunzo pamusoro pekugadzirisa.Kambani inoronga kukwidza mutongo weTexas, yakamboudza ABC News ine "chivimbo chikuru" mukuita uye kuvimbika kweET-Plus system.