Changan

Changan (Seomun: 長安, Jinmun: 장안), formally the Changan Metropolitan Municipality (Seomun: 長安廣域市, Jinmun: 장안광역시), is the third most populous city of the Republic of Zhenia of Zhenia, as well as the second largest city in eastern Zhenia. As one of the five metropolitan municipalities in Zhenia, it is governed by the Changan Metropolitan Government. Situated in the northeastern Danguk peninsula, it is surrounded by Donghae North Province, making it the largest landlocked city in the nation. Being home to over 11 million people, its metropolitan area is also the third-largest in the nation, behind those of Daedo and Jinhae.

Starting off as a military outpost of the Zhen dynasty to deter Yemeg invasions, it grew rapidly as it housed the Northeast Protectorate-General in the 2nd century. It remained a regional center of politics and trade over the centuries even under Yemeg Zhenian rule, until it was reconquered by the Shindan dynasty in the early 14th century. The city truly drew attention after the Zhenian Civil War when it was designated as the northeastern industrial hub, due to its proximity to the Danguk Peninsula: since then, it has consolidated itself as the largest city in northeastern Zhenia. While also being the eastern hub of Zhenia's railway network by the 1880s, a considerable part of the nation's heavy industry, including the nation's first steel mill complex, had initiated from Changan.

Changan today is an international hub for heavy industry, transportation, technology, commerce, education and finance. Changan International Airport, as the nation's third-largest airport by size, is often among the nation's busiest airports, while Changan Central Station is the single largest station in the nation both by size and traffic. Due to its economic significance, it is home to the second-largest number of corporate headquarters in the nation second only to Daedo, being home to headquarters of numerous companies including the Zhenia National Railway Company, Paragon, Li-Jien Dynamics, Surimae Motors and RS.

Transport
Changan is home to Changan Central Station, the fifth-busiest station in the nation by passenger traffic and the second-busiest by number of trains arriving. Situated at the center of the city's and intercity rail network, the station sees several long-distance passenger rail lines mainly departing from the city. The city's intercity and commuter passenger rail network is augmented by two more stations (Changan North and Changan Hoban that act as diversion points to disperse rail traffic from clogging up urban lines. A commuter rail network managed by the Changan Rail Authority, which also primarily handles the city's network, connects Changan's city center to nearby suburbs and cities in Donghae North Province.

Apart from passenger rail, Changan is also the second-largest hub in the nation. In terms of air transport, Changan International Airport, located 35 kilometers northeast of city center, primarily serves the city and its metropolitan area as a whole, augmented by Jinsun International Airport to the city's southeast as well as a number of alternate airports in Donghae North Province. Changan International Airport is the third-busiest airport in the nation by air traffic, behind Daedo Capital International Airport and Shin Jinhae International Airport. Due to its proximity to Veharia as per the, Changan sees more direct flights to Veharia than any other Zhenian city as of 2020. Changan hosts the global headquarters of Paragon Air, the nation's third-largest airline that has designated Changan International Airport as its main hub.