I-Approach Lighting System: Isebenza Kanjani?
Sondela izinhlelo zokukhanyisaziyingxenye ebalulekile yokuphepha kanye nokusebenza kahle kwesikhumulo sezindiza. Lawa masistimu okukhanyisa aklanyelwe ukunikeza abashayeli bezindiza izinkomba zokubuka njengoba besondela kumzila wezindiza, okubasiza ukuba bathole indlela efanele yokushibilika kanye nokuqondisa indiza yabo nomzila wezindiza ukuze ifike endaweni ephephile. Kulesi sihloko, sizohlola ukuthi ama-approach lighting systems asebenza kanjani kanye nezinhlobo ezahlukene zokukhanyisa indlela ezisetshenziswa kakhulu ezikhumulweni zezindiza emhlabeni jikelele.
Inhloso eyinhloko yesondela izinhlelo zokukhanyisawukusiza abashayeli bezindiza ngesikhathi sesigaba esibucayi sokufika. Lawa masistimu abaluleke kakhulu phakathi kwezimo ezingabonakali njengenkungu, imvula, noma iqhwa, lapho izithenjwa ezibonakalayo eziphansi zingase zingabonakali. Ngokuhlinzeka ngochungechunge lwamalambu aqondisa indiza ibheke emgwaqeni wezindiza, amasistimu okukhanyisa asondelene nawo athuthukisa ukuphepha futhi anciphise ubungozi bokungena emzileni wezindiza nezinye izingozi.
Kunezinhlobo eziningana ezahlukenesondela izinhlelo zokukhanyisaezisetshenziswa ezikhumulweni zezindiza emhlabeni jikelele. Uhlobo oluvame kakhulu i-precision approach path indicator (PAPI), equkethe uchungechunge lwamalambu ahlelwe ngokulandelana. Lezi zibani ngokuvamile zimhlophe futhi zibomvu, izibani ezimhlophe zibonisa ukuthi indiza iphakeme kakhulu futhi amalambu abomvu abonisa ukuthi indiza iphansi kakhulu. Ngokugcina inani elilinganayo lezibani ezimhlophe nezibomvu kusibonisi, abashayeli bezindiza bangaqinisekisa ukuthi basendleleni elungile yokushibilika lapho befika.
Olunye uhlobosondela uhlelo lokukhanyisainkomba ye-slope ye-visual approach (VASI). Amasistimu e-VASI aqukethe amasethi amabili wezibani, elilodwa ohlangothini ngalunye lomzila wezindiza. Njengezinhlelo ze-PAPI, izibani ze-VASI zinikeza izinkomba ezibukwayo kubashayeli bezindiza mayelana nokuma kwabo endleleni yokushibilika. Ngokubheka imibala nezindlela zezibani, abashayeli bezindiza bangenza izinguquko endleleni yabo ukuze baqinisekise ukuthi bahlala phansi ngokuphephile.
Ngokungeziwe kumasistimu e-PAPI ne-VASI, izikhumulo zezindiza zingasebenzisa nezinye ezihlukahlukenesondela izinhlelo zokukhanyisaukubhekelela ukucushwa komzila wezindiza ezahlukene kanye nezici zemvelo. Isibonelo, ezinye izikhumulo zezindiza zinezinhlelo zokukhanyisa ezisezingeni eliphezulu (ALS) ezihlinzeka ngokuqondisa okubonakalayo okwengeziwe kubashayeli bezindiza phakathi nokusondela kwabo kumzila wezindiza. Lezi zinhlelo zingabandakanya izibani ezikhanyayo ezilandelanayo nezibani ze-strobe, ezisiza ukudonsa ukunaka komshayeli wendiza endaweni yezindiza.
Ngakho-ke, zisebenza kanjani lezi zinhlelo zokukhanyisa ngokoqobo? Amalambu asetshenziswa ezinhlelweni zokukhanyisa izibani ngokuvamile anikwa amandla kagesi futhi alawulwa uhlelo lokulawula ukukhanyisa olumaphakathi. Uma ecushwe ukulawula kwethrafikhi yendiza noma umshayeli wendiza esebenzisa ukuxhumana kwerediyo, izibani zikhanyisa ngokulandelana okukhethekile kanye nephethini ukuze zinikeze izinkomba ezidingekayo zokubuka indlela ephephile nokufika. Abashayeli bezindiza bangasebenzisa lezi zimpawu zokubuka ukuze balungise ukuphakama kwabo futhi baqondanise indiza yabo nomzila wezindiza, baqinisekise ukuhlalisa kahle nokunemba.
Ekuphetheni,sondela izinhlelo zokukhanyisaidlala indima ebalulekile ekuphepheni nasekusebenzeni kahle kwemisebenzi yesikhumulo sezindiza, ikakhulukazi phakathi nezimo ezingabonakali kahle. Ngokunikeza izinkomba ezibukwayo kubashayeli bezindiza ngesikhathi besondela kumzila wezindiza, lezi zinhlelo zokukhanyisa zisiza ukuqinisekisa ukuthi ukuhlala okuphephile nokulawulwayo. Kungakhathaliseki ukuthi i-PAPI, i-VASI, noma i-ALS, izinhlobo ezihlukahlukene zesistimu yokukhanyisa indlela zonke zifeza injongo efanayo eyisisekelo: ukuqondisa indiza ngokuphepha kumzila wezindiza. Ukuqonda ukuthi lezi zinhlelo zisebenza kanjani kubalulekile kubashayeli bezindiza, izilawuli zethrafikhi yezindiza, nezisebenzi zezindiza njengoba besebenza ndawonye ukuze balondoloze izinga eliphezulu lokuphepha endizeni.
Isikhathi sokuthumela: May-21-2024
