A karshen watan Maris na wannan shekara, sakamakon faduwa da taku biyu a cikin makonni biyu, jami'an Sashen Sufuri na Seattle (SDOT) sun rufe zirga-zirgar ababen hawa a gadar Seattle ta Yamma.
Yayin da jami'an SDOT suka yi kokarin daidaita gadar tare da tantance ko za a iya ceton gadar ko kuma dole ne a sauya gadar gaba daya, sun nemi mai zanen ya ba da shawara kan sauya gadar., Idan har yanzu muna iya yin gyare-gyare na ɗan gajeren lokaci don sake buɗe gadar da wuri-wuri, amma a cikin 'yan shekaru masu zuwa, har yanzu ana buƙatar tallafin ƙira don maye gurbin gada.“Kimar kwangilar ta tashi daga dalar Amurka 50 zuwa dalar Amurka miliyan 150.
Da farko, Bukatun Cancantar Garin New York (RFQ) na kamfanonin injiniya ya bayyana an iyakance shi ga hanyoyin gada.Koyaya, yayin da tallafin al'umma ya ƙaru, injiniyan farar hula Bob Ortblad mai ritaya shima ya ba New York City damar haɗa hanyoyin hanyoyin rami a cikin RFQ.Birnin New York ya ƙirƙiro wani shafi ga takardar binciken, wanda ya ce: "Za a ƙididdige wasu hanyoyin a matsayin wani ɓangare na kwangilar, ciki har da amma ba'a iyakance ga rami da zaɓuɓɓukan daidaitawa da sauti ba."
Abin sha'awa, kafin ƙarshe yanke shawarar zama gadar Yammacin Seattle ta yanzu, jami'an Seattle sun yi la'akari da hanyoyin kusan 20 a cikin 1979, waɗanda aka kawar da hanyoyin biyu na rami.Ana iya samun su a Madadin Hanyoyin 12 da 13 a cikin Bayanin Tasirin Muhalli na Ƙarshe (EIS) na Titin Spokane Street Corridor."Saboda tsadar kuɗi, dogon lokacin gini da kuma ɓarna mai yawa, an cire su daga la'akari."
Wannan ba ba tare da ƙin yarda ba, domin wani memba na jama'a da ya halarci Harbour Island Machine Works yayi sharhi game da EIS: “Sun haƙa rami daga ƙasa akan farashi mai yawa, kuma babu wanda ya bayar da adadi.Yanzu, menene adadi da nake tambaya, Ko sun taɓa gwadawa?
Ramin bututu mai nutsewa (ITT) ya sha bamban da ramin SR 99.Lokacin amfani da "Bertha" (na'ura mai ban sha'awa) don ƙirƙirar rami na 99, an jefa ramin bututun da aka nutsar a wurin a kan busasshiyar tashar jiragen ruwa, sannan a kwashe kuma a nutsar da shi a ƙarƙashin ruwa da aka sanya a cikin ruwa.
Kasar Japan tana da ramuka 25 da suka nutse.Wani ƙarin misali na gida na ITT shine Ramin George Massey a ƙarƙashin kogin Fraser a Vancouver, British Columbia.Ramin ya ɗauki ɗan lokaci fiye da shekaru biyu ana gina shi, wanda ya haɗa da sassan siminti guda shida, kuma an sanya shi cikin watanni biyar.Ortblad ya yi imanin cewa rami ta Duwamish kuma zai zama hanya mai sauri da araha don ginawa.Misali, ya samar da ponton 77 SR 520 da ake bukata don tsallaka tafkin Washington - ƙwanƙwasa biyu ne kawai ke iya haye Duwamish.
Ortblad ya yi imanin cewa fa'idodin ramukan kan gadoji sun haɗa da ba kawai rage farashi da haɓaka saurin gini ba, har ma da tsawon rayuwar sabis da ƙarfin juriya na girgizar ƙasa.Ko da yake maye gurbin gadoji a yayin da girgizar ƙasa ta kasance har yanzu tana da sauƙi ga gurɓataccen ƙasa, ramin yana da tsaka-tsakin tsaka-tsaki don haka babban girgizar ƙasa ba ya shafa.Ortblad kuma ya yi imanin cewa ramin yana da fa'idar kawar da hayaniya, gurɓacewar gani da muhalli.Rashin yanayin yanayi mara kyau kamar hazo, ruwan sama, baƙar ƙanƙara da iska.
Akwai wasu ra'ayoyi game da gangaren gangaren da ke shiga da fita daga ramin da kuma yadda yake shafar hanyar dogo mai haske.Ortblad ya yi imanin cewa raguwar 6% a cikin sakamakon gabaɗaya shine saboda saukowar ƙafa 60 shine hanya mafi guntu fiye da haɓaka ƙafa 157.Ya kara da cewa, titin dogo mai saukin da ke ratsa ramin ya fi aminci fiye da tafiyar da titin kan gada mai tsawon kafa 150 akan ruwa.(Ina tsammanin ya kamata a cire layin dogo gaba ɗaya daga tattaunawar madadin zaɓuɓɓukan gadar Seattle ta Yamma.)
Yayin da jama'a ke jira don jin ko Seattle DOT za ta nemi madadin samfuran, yana da kyau a ga cewa jama'a suna shiga cikin hanyoyin da za a iya amfani da su.Ni ba injiniya ba ne kuma ban sani ba ko wannan zai yi aiki, amma shawarar tana da ban sha'awa kuma ta cancanci a yi la'akari sosai.
Lokacin aikawa: Nov-02-2020