ZTR meaning in Airport Code ?

Zhytomyr (Ukrainian: Жито́мир [ʒeˈtɔmer]; Russian: Жито́мир, romanized: Zhitómir [ʐɨˈtomʲɪr]; Polish: Żytomierz; Yiddish: זשיטאָמיר‎, romanized: Zshitomir) is a city in the north of the western half of Ukraine. It is the administrative center of Zhytomyr Oblast (province), as well as the administrative center of the surrounding Zhytomyr Raion (district). The city of Zhytomyr is not a part of Zhytomyr Raion: the city itself is designated as its own separate raion within the oblast; moreover Zhytomyr consists of two so-called "raions in a city": Bohunskyi Raion and Koroliovskyi Raion (named in honour of Sergey Korolyov). Zhytomyr occupies an area of 65 square kilometres (25 square miles). Its population is 263,507 (2021 est.)

Zhytomyr is a major transportation hub. The city lies on a historic route linking the city of Kyiv with the west through Brest. Today it links Warsaw with Kyiv, Minsk with Izmail, and several major cities of Ukraine. Zhytomyr was also the location of Ozerne airbase, a key Cold War strategic aircraft base 11 kilometres (6.8 miles) southeast of the city.

Important economic activities of Zhytomyr include lumber milling, food processing, granite quarrying, metalworking, and the manufacture of musical instruments.

Zhytomyr Oblast is the main center of the Polish minority in Ukraine, and in the city itself there is a Latin Catholic cathedral and large Roman Catholic Polish cemetery, founded in 1800. It is regarded as the third biggest Polish cemetery outside Poland, after the Lychakivskiy Cemetery in Lviv and Rasos Cemetery in Vilnius.