"Kashi kashi" zagaye zagaye? Sunan mai ban sha'awa ya fito daga sifarsa wanda, idan aka duba shi daga sama, yana ɗaukar sifar gargajiya ta… “kashin kare”, kamar yadda aka saba gani a zane-zane ko kayan wasan yara. Har ila yau, saboda siffar su, ana iya kiran su daɗaɗɗen "ruwa" sau biyu.
Ainihin sakamakon rotunda "kashi na kare" daga hadewar rotundas guda biyu wadanda basu taba kaiwa ga da'irar da'ira ba, duka biyun ana hade su ta hanyoyi biyu, zai fi dacewa a raba jiki, suna aiki a matsayin rotunda guda daya, amma kamar an matsa shi cikin rabi.
Magani ce da ke tabbatar da yin tasiri sosai wajen kara yawan zirga-zirgar ababen hawa da kuma rage cin karo da juna tsakanin ababen hawa. Dubi yadda yake aiki a cikin wannan zane:
A cikin yanayin farko, wanda ke da yawan zirga-zirgar ababen hawa, yana guje wa amfani da fitilun zirga-zirga don daidaita zirga-zirgar ababen hawa, yana ba da gudummawa ga raguwar saurin abin hawa da kuma raba hanyoyin da ya fi dacewa da zirga-zirgar zirga-zirgar da ke haɗuwa zuwa tsakiyar mahadar. Idan ya zama dole a juya hanyar tafiya, dole ne direbobi su je zagaye na biyu koyaushe.
A karo na biyu kuma, raguwar taho-mu-gama tsakanin ababan hawa, shi ne dai dai saboda wannan rarrabuwar kawuna na motoci, da hana yin karon gaba (a alaqar da ke tsakanin mashigin guda biyu) da kuma guje wa qaruwar hadurran gefen (motar da ta bugi gefen wata motar). ),
Wannan shi ne abin da ya samo birnin Karmel, a jihar Indiana a Amurka (nan da nan a arewacin Indianapolis), wanda aka riga aka sani da lambar (akwai 138 kuma ba zai tsaya nan ba) da nau'i-nau'i iri-iri da ya riga ya gina.
Karmel ta riga tana da kewayawa na "kashin kare" da yawa a cikin aiki - kamar wanda ke cikin bidiyon da aka nuna - wanda ya maye gurbin sauran nau'ikan hanyoyin sadarwa, a karkashin babban titin birnin da ke tsallaka shi kuma a zahiri ya raba shi biyu.
IIHS (Cibiyar Inshorar Lafiya ta Hanyar Hanya ko Cibiyar Inshorar Lafiya ta Hanyar Hanya) ta gudanar da nazarin kwatanta adadin hatsarori kafin da kuma bayan gina "kashi na kare" zagaye na zagaye (tare da shekaru biyu na bayanan haɗari kafin ginawa) a Carmel. Sakamakon yana haskakawa: 63% ƙasa a cikin jimlar yawan hatsarori da 84% ƙasa da adadin raunin da ya shafi raunin da ya faru.
Ba wai kawai ana samun wuraren zagayen “kashin kare” a cikin Amurka ba, amma da alama ita ce ƙasa mafi ɗaukar nauyi. Hakanan ana iya amfani da su a cikin wasu mahallin, ban da yin hidima azaman hanyar shiga kofa/fitar babbar hanya, kamar yadda aka nuna a bidiyo na gaba: