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Sejong City

Sejong City is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sejong City rather than just read about it. In short: Sejong or Sejong City (Korean: 세종; Korean: [seːdʑoŋ] ), officially Sejong Special Self-Governing City (세종특별자치시), is a special self-governing city and the de facto administrative capital of South Korea. Sejong was founded in 2007 as the new planned capital of South Korea created mostly from parts of South Chungcheong Province and some parts of North Chungcheong Province in order to ease congestion in South Korea's cu…

Sejong City — main illustration
Sejong City — illustration

Key takeaways

  • Sejong City belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Sejong City to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Sejong City from memory before moving on to harder problems.

Reference excerpt

Sejong or Sejong City (Korean: 세종; Korean: [seːdʑoŋ] ), officially Sejong Special Self-Governing City (세종특별자치시), is a special self-governing city and the de facto administrative capital of South Korea. Sejong was founded in 2007 as the new planned capital of South Korea created mostly from parts of South Chungcheong Province and some parts of North Chungcheong Province in order to ease congestion in South Korea's current capital and largest city, Seoul, and to encourage investment in the country's central region. Since 2012, the government of South Korea has relocated numerous ministries and agencies to Sejong, but many still reside in other cities, primarily in Seoul, where the National Assembly and many important government bodies remain. Sejong has a population of 351,007 as of 2020 and covers a geographic area of 465.23 km2 (179.63 sq mi), making it the least-populous and smallest first-level administrative division in South Korea. Sejong is located in the west-central Hoseo region, bordering South Chungcheong to the west, Daejeon to the south, and North Chungcheong to the east. The construction of the city is expected to be completed in 2030, at which time 500,000 people are expected to live there.

Name Sejong was named in honor of King Sejong the Great, the fourth king of the Joseon Dynasty and creator of the Korean alphabet, Hangul. The city was formed by combining Yeongi County, the county of South Chungcheong Province from which the majority of the city's territory was ceded, and other counties.

History

In 2003, then-President Roh Moo-hyun sought to relocate the national capital of South Korea from the metropolitan city of Seoul to a new multifunctional administrative city in the center of the country. The goal was to reduce the influence and dominance of Seoul on national governance and economics, whilst promoting the regional development of other areas of the country. According to the former Interior Minister Maeng Hyung-gyu in 2012, "Sejong is a symbol of the country's efforts toward more balanced regional development," helping to decongest Seoul and spur investment in the country's central region. In October 2004, the Constitutional Court dealt a setback to President Roh's plans, ruling that the capital must remain in Seoul as customary constitution, in response to a complaint filed by the main opposition, the conservative Grand National Party. Hence, the Roh administration was forced to modify the project to relocate the majority of government ministries and institutions to Sejong, which would become a special administrative city instead of a new capital. The revised plan was approved by the National Assembly in March 2005. Challenges to the new plan were rejected by the Constitutional Court in November 2005. When the Grand National Party retook the presidential office in 2008, then-President Lee Myung-bak opposed the idea of moving government agencies, claiming that it would hurt Seoul's global competitiveness and result in inefficiency. Following Lee's directions, plans were made to make Sejong an industrial, science and education hub instead. This plan was opposed by many, including Roh's allies and some members of the ruling Grand National Party, including Lee's arch-rival and eventual successor, Park Geun-hye. Defeat in the mid-2010 local elections forced Lee to present his proposal to the National Assembly where it was voted down. In December 2008, construction for the Sejong Government Complex started. After level 1 of the construction was completed in November 2012, level 2 was finished in November 2013, and finished construction in November 2014. In July 2012, Sejong Special Self-Governing City was created by combining all of Yeongi County (연기군), three townships of Gongju and one township of Cheongwon County. Jochiwon was the main city within Yeongi. In April 2013, the city government of Putrajaya, Malaysia signed a letter of intent (LOI) with the government of Sejong City to mark cooperation between the two planned capitals. As of 2019, 12 ministries were relocated to the city. As such, only 5 ministries continue to remain in Seoul; the Ministry of Foreign Affairs, Ministry of Unification, Ministry of Justice, Ministry of National Defense, and Ministry of Gender Equality and Family. Sejong was specifically designed to be a "smart city", and is sometimes referred to as Sejong smart city. It is the leading smart city in Korea, and is often held up as the standard for other cities experimenting with the development of smart city infrastructure. By 2019, there was disagreement among experts as to whether Sejong has "lived up to expectations". Sejong uses its new development to market itself as an alternative to Seoul, offering luxury living at a fraction of the cost. It boasts shiny state-of-the-art condominiums, ample public green space and smart and sustainable city tech, like automated trash collection and zero-waste food disposal, electric car charging and sharing stations, solar-powered buildings, interactive digital signage, closed-circuit television security and fine dust emergency alerts. It has sparked criticism that the new city is not only too lackluster to draw residents away from Seoul, but also difficult to access and poorly designed".

Geography Sejong is surrounded by the two provinces of South and North Chungcheong, as well as the metropolitan city of Daejeon. It is about 121 kilometres (75 mi) south from Seoul. The city covers a total area of approximately 465 square kilometers, composed of urbanized zones, administrative complexes, and expansive greenbelt areas. Sejong's urban planning follows an environmentally integrated approach, incorporating large-scale green belts, parks, and waterways. Over 50% of its land is reserved for forests, public parks, ecological wetlands, and pedestrian-friendly zones. Geographically, the area is largely defined by gentle hills, river valleys, and fertile plains, formerly used for agriculture before the city's development. The Miho River, a tributary of the Geum River, flows through the city, and is a huge aspect of both the green landscape and the water management network of the region. The topography and layout of the city has effectively been transformed during the development process, with much of the land being manipulated and rearranged to prepare the land for an ecological landscape where built space and green space could co-exist.

… excerpt ends here. Continue reading the full article.

Illustrations

Sejong City illustration
Sejong City illustration
Sejong City illustration
Sejong City illustration
Sejong City illustration

Worked examples

Example 1 — a first encounter with Sejong City

Start with the simplest possible case. Write down what Sejong City claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sejong City before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sejong City ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sejong City

In research
Sejong City appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Sejong City in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Sejong City is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2007 establishments in South Korea, Autonomous cities, Cultural depictions of Sejong the Great, so understanding it makes those chapters shorter.
In everyday life
Look for Sejong City outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Sejong City in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Sejong City means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Sejong City out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sejong City in simple terms?

Sejong or Sejong City (Korean: 세종; Korean: [seːdʑoŋ] ), officially Sejong Special Self-Governing City (세종특별자치시), is a special self-governing city and the de facto administrative capital of South Korea. Sejong was founded in 2007 as the new planned capital of South Korea created mostly from parts of…

Why does Sejong City matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sejong City?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sejong City.

Tags

  • 2007 establishments in South Korea
  • Autonomous cities
  • Cultural depictions of Sejong the Great
  • Planned capital cities
  • Planned communities in South Korea
  • Sejong City
  • Self-governance
  • Smart cities

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