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Damar shiga da Damar fita
Bayanai
Ƙaramin ɓangare na	road junction (en)

Wannan maƙala tana magana ne akan haƙƙin tuƙi (Dama-shjga / dama-fita ( RIRO ), da Dama bin tsagen hagu / Fita ta hagu ( LILO ) . wannan yana nufin wani nau'in ne na hanya uku inda aka ƙuntata yawan tafiyar motoci . RIRO yana ba da izinin juyawa dama kawai kuma LILO yana ba da izinin juyawa hagu kawai. "Dama-ciki" da "hagu-ciki" suna nufin jujjuyawar babbar hanya zuwa mahaɗa (ko hanyar mota); "futa-dama" da "fita-hagu" suna nufin jujjuyawar hanya (ko titin mota) zuwa babbar hanya. RIRO yakan kasance inda ababen hawa ke tafiya a dama, shi kuma LILO ya saba inda motocin ke tafiya a hagu Wannan saboda ƙananan hanyoyi yawanci suna haɗuwa ta hanyoyi biyu. T Koyaya dai, akan babbar hanyar da aka raba, duka mahadar RIRO da LILO na iya faruwa.^[1]^[2]^[3]

Ragowar maƙalar tana nufin RIRO kawai amma yana aiki daidai da LILO.

Matsakaicin RIRO ya bambanta da haɗin 3/4 (dama cikin / dama waje / hagu a) da kuma tsaka-tsakin mara iyaka.

Zane

RIRO wani muhimmin kayan aiki ne na gudanarwar samun dama, shi kansa muhimmin sashi ne na tsarin sufuri . Wani binciken da ke amfani da jagororin gudanarwa na samun dama ga sake fasalin Hanyar Missouri ta 763 a Columbia, Missouri ya kwatanta yadda RIRO, haɗe tare da siginar siginar da aka tsara don ba da izinin juyawa, zai iya ɗaukar nauyin zirga-zirga tare da ƙananan jinkiri da aminci mai girma.^[4]

Ƙuntataccen RIRO yawanci ana aiwatar da shi ta hanyar shinge na zahiri kamar tsibirin zirga-zirga a cikin mahadar don jagorantar ababen hawa zuwa hanyar da aka halatta, da kuma hana ababen hawa tafiya ta hanyar mahadar. Babbar hanyar ita kanta sau da yawa tana da tsaka -tsakin tsaka-tsaki da ke raba hanyoyin ababen hawa biyu. Hakanan za'a iya samun ƙuntatawa ta hanyar sigina, amma lokacin da tsaka-tsaki ko wani shinge ba ya kasancewa a cikin tsaka-tsakin babbar hanya, an sami daidaitawar RIRO don haifar da ƙimar cin zarafi.^{[ana buƙatar hujja]}

Hakanan hanyoyin RIRO na iya samun musanya tsakanin ma'auni, amma motocin da ke kan waɗannan hanyoyin ba sa ba da dama ga sauran motocin da ke shiga hanyar, kuma ba sa fuskantar cunkoson ababen hawa. Irin wadannan hanyoyi wasu lokuta ana kiransu RIRO expressways . A Amurka, a wasu lokuta ana kiran su Jersey freeways, saboda yaɗuwarsu a jihar New Jersey, ko da yake ba'a iyakance ga waccan jihar ba.

Amfani

Tsarin hanyar RIRO muhimmin kayan aiki ne don gudanar da shiga . Gabaɗaya nau'ikan daidaitawar hanyar RIRO sun haɗa da iyakataccen hanyoyin shiga ( hanyoyi daban -daban, da sauransu) da kewayawa . Don tafiya cikin ƙayyadaddun alkibla, motoci dole ne su fara juya kan hanyar da aka halatta, sannan su juya alkibla a cikin juyi, ta zagayawa dawafi ko ta hanyar hagu kusa da shinge. RIRO yana da amfani musamman inda jujjuyawar hagu ke buƙatar tsallakawa gaban ababen hawa masu zuwa.