Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A cikin 1998, Kerner ya gano cewa a cikin ainihin bayanan zirga-zirgar filin fitowar wani babban motsi mai motsi a cikin kwararar kyauta ana kiyaye shi azaman kwararar sauye-sauyen F → S → J (Hoto na 9): da farko, wani yanki na kwararar aiki tare yana fitowa a cikin yankin kwararar kyauta. Kamar yadda aka bayyana a sama, irin wannan F → S lokaci miƙa mulki yafi faruwa a wani bottleneck. A cikin yanayin kwararar lokaci-lokaci wani "kai-kai" yana faruwa kuma yawan motar yana ƙaruwa yayin da saurin motar ya ragu. Wannan matsewar kai ana kiranta "tasirin matsewa". A cikin yankuna "pinch" na gudanawar aiki tare, ƙananan matattarar motsi suna fitowa. Idan waɗannan kunkuntar motsi masu motsi suna girma, manyan motsi masu motsi za su fito da alama ta S → J a cikin Hoto 9). Saboda haka, manyan motsi jams bayyana daga baya fiye da zirga-zirga katsewa (F → S miƙa mulki) ya faru da kuma a wani hanya wuri sama da bottleneck. Saboda haka, a lokacin da Kerner <unk> F → S → J lokaci miƙa mulki faruwa a hakikanin zirga-zirga (Figure 9 (a)) an gabatar a cikin gudun-yawa jirgin saman (Figure 9 (b)) (ko gudun-kwarara, ko kuma kwarara-yawa jiragen), daya ya kamata tuna cewa jihohi na aiki tare da kwarara da kuma low gudun jihar a cikin wani m motsi jam aka auna a daban-daban hanya wurare. Kerner ya lura cewa yawan fitowar manyan jams masu motsi yana ƙaruwa idan yawa a cikin gudanawar aiki tare ya ƙaru. Manyan matattarar motsi suna yaduwa gaba da sama, koda kuwa suna yaduwa ta yankuna na daidaitaccen kwarara ko maɓallan kwalliya. A bayyane yake, duk wani haɗin jujjuyawar lokaci na dawowa (S → F, J → S, da J → F sauye-sauye da aka nuna a cikin Hoto 9) shima mai yiwuwa ne.  Tambaya: Menene ya faru da yankunan pinch a lokacin matsawa kai?
Ƙananan ƙuƙwalwar motsi suna fitowa