Njira yoyamba yowunikira njira zoyendetsera ndege inayamba kugwiritsidwa ntchito pa Cleveland City Airport (yomwe tsopano imadziwika kuti Cleveland Hopkins International Airport) mu 1930. Masiku ano, njira zowunikira zowunikira ndege zikukula kwambiri. Pakadali pano, kuyatsa kwamabwalo a ndege kumagawika kwambiri kukhala njira yowunikira, njira yoyatsira, ndi njira yowunikira ma taxi. Makina owunikira awa palimodzi amapanga dziko lowoneka bwino lowunikira pama eyapoti usiku. Tiyeni tifufuze zamatsenga izimachitidwe owunikirapamodzi.

Njira yowunikira njira

Approach Lighting System (ALS) ndi mtundu wa nyali zothandizira panyanja zomwe zimapereka chithunzithunzi chochititsa chidwi cha malo ndi komwe kuli kolowera mumsewu ndege ikatera usiku kapena osawoneka bwino. Njira yowunikira njira imayikidwa kumapeto kwa msewu wonyamukira ndege ndipo ndi nyali zingapo zopingasa,magetsi akuthwanima(kapena kuphatikiza zonse ziwiri) zomwe zimatuluka kunja kuchokera panjira yowulukira ndege. Nyali zoyankhulirana nthawi zambiri zimagwiritsidwa ntchito panjira zodumphira ndi zida, zomwe zimalola oyendetsa ndege kuti azitha kusiyanitsa mawonekedwe a msewu wonyamukira ndegeyo komanso kuwathandiza kulumikiza msewu wonyamukira ndegeyo ikafika pomwe idakonzedweratu.

Yandikirani kuwala kwapakati

Yambani ndi chithunzi choyambirira. Chithunzichi chikuwonetsa magetsi a gulu la njira yowunikira njira. Choyamba timayang'ana njira yowunikira magetsi. Kunja kwa msewu wonyamukira ndege, mizere 5 ya nyali zowala zowoneka bwino zidzayikidwa kuyambira pamzere wokulirapo wa mzere wapakati pa 900 metres, mizere imayikidwa mamita 30 aliwonse, kupitilira mpaka polowera msewu. Ngati ndi msewu wosavuta, kutalika kwake kwa nyali ndi 60 metres, ndipo kuyenera kupitilira mamita 420 mpaka pakatikati pa msewu wonyamukira ndege. Mwina munganene kuti kuwala komwe kuli pachithunzipa n’koyera bwino. Chabwino, ndimaganiza kuti ndi lalanje, koma ndi zoyera zosinthika. Ponena za chifukwa chake chithunzicho chikuwoneka lalanje, chiyenera kufunsidwa ndi wojambula zithunzi

Mmodzi wa nyali zisanu pakati pa njira centerline ili ndendende pa mzere kutambasuka kwa centerline, kuchokera 900 mamita 300 mamita kuchokera mzere kutambasuka wa centerline. Amapanga mizere yowunikira motsatizana, kung'anima kawiri pa sekondi iliyonse. Kuyang'ana pansi kuchokera m'ndegemo, nyalizi zinayang'ana chapatali, kuloza molunjika kumapeto kwa msewu wonyamukira ndege. Chifukwa cha mawonekedwe ake ngati mpira wa ubweya woyera womwe ukuthamangira pakhomo la msewu wonyamukira ndege, umatchedwa "kalulu".

Yandikirani magetsi opingasa

Magetsi oyera opingasa osinthasintha omwe amaikidwa pa mtunda wokwanira wamamita 150 kuchokera pomwe pali msewu wonyamukira ndege amatchedwa ma approach horizontal lights. Njira yowunikira yopingasa ndi yolunjika pakati pa msewu wonyamukira ndege, ndipo mbali yamkati ya mbali iliyonse ndi 4.5 metres kuchokera pakatikati pa msewu wonyamukira ndege. Mizere iwiri ya nyali zoyera pa chithunzi, amene ndi yopingasa kwa njira magetsi pakati ndi yaitali kuposa njira centerline nyali (ngati mukuganiza kuti lalanje, sindingathe kutero), ndi magulu awiri njira yopingasa nyali. Magetsi amenewa amatha kusonyeza mtunda wa pakati pa msewu wonyamukira ndegeyo n’kuthandiza woyendetsa ndegeyo kuwongolera ngati mapiko a ndegeyo ali opingasa.