--- Zonke izimoto ezilandelwa indawo (ama-ATTV) zibalulekile ekuthuthweni kwe-polar, lapho izimo zezulu ezedlulele kanye nezindawo eziyinselele zibeka izithiyo ezibalulekile ezimotweni ezijwayelekile. Le mishini eqinile yenzelwe ngokukhethekile ukuzulazula izindawo ezineqhwa, inikeze izindlela ezithembekile zokuhamba zabasebenzi, imishini, nezimpahla ezindaweni ezinzima ze-Arctic nase-Antarctic. Oye