• Tucson
  • Tiexi District

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Tiexi District, which belongs to Shenyang City, Liaoning Province, is the central city of Shenyang. The old city sits in a prosperous area with one ring and two rings. The new town is located in the area of the third and fourth rings. Tiexi District is bordered by Huanggu District and Yuhong District to the north, Liaozhong District to the west and Heping District and Sujiatun District to the east. With a total area of 484square kilometers and a population of 910000, it enjoys the authority of municipal management. Tiexi District is an industrial zone in China. On June 9, 2007, the National Development and Reform Commission and the Northeast Revitalization Office of the State Council awarded Shenyang the title of "Tiexi old industrial base adjustment and transformation and equipment manufacturing development demonstration zone". In 2008, it was listed as one of the 18 typical areas in China after 30 years of reform and opening up, and won the United Nations Global livable Urban demonstration Award. In 2009, the Industrial Development Plan of Tiexi equipment Manufacturing Cluster area has been rectified by the National Development and Reform Commission.
Airport In Tiexi District - Shenyang Taoxian International Airport
Shenyang Taoxian International Airport (Shenyang Taoxian International Airport, IATA: SHE, ICAO: ZYTX), located in Taoxian Street in the southern suburbs of Shenyang City, Liaoning Province, China, 20 kilometers away from the center of Shenyang. It is a 4E-level civil international airport,   It is a first-class trunk airport in China and one of the eight major regional hub airports in China   , an air transport hub in Northeast China.  
On April 16, 1989, Shenyang Taoxian Airport was officially opened for navigation; on June 16, 1990, Shenyang Taoxian Airport was formally established; on November 28, 1994, Shenyang Taoxian Airport was renamed Shenyang Taoxian International Airport; 2003 On September 16, 2010, Shenyang Taoxian International Airport Co., Ltd. was formally established.  
As of the end of 2016, Shenyang Taoxian International Airport has one terminal in use, which is the T3 terminal building, with a construction area of ​​248,000 square meters, a runway length of 3,200 meters, and 47 parking spaces. The T3 terminal building meets the requirements of the 2020 It is designed and constructed with a passenger throughput of 17.5 million person-times and a peak-hour passenger throughput of 6430 person-times. As of August 2017, there are 149 routes passing Taoxian Airport, including 126 domestic routes and 23 international and Hong Kong, Macao and Taiwan routes.  
In 2016, the passenger throughput of Shenyang Taoxian International Airport was 14.9672 million passengers, a year-on-year increase of 11.8%; the cargo and mail throughput was 155,700 tons, a year-on-year increase of 9.6%; the number of takeoffs and landings was 115,100 vehicles, a year-on-year increase of 7.9%; 24, 18, 25.  
In 2017, the passenger throughput of Shenyang Taoxian International Airport was 17.3426 million passengers, a year-on-year increase of 15.9%, the highest growth rate in the past 10 years; the cargo and mail throughput was 159,100 tons, a year-on-year increase of 2.1%; the number of takeoffs and landings was 127,300, a year-on-year increase 10.6%; continue to rank 24th, 18th, and 25th in China respectively.
On December 22, 2019, the passenger throughput of Shenyang Taoxian International Airport exceeded 20 million.  
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