Analysis Area: 11 cities and counties in North Chungcheong Province and the Daejeon-Sejong-South Chungcheong connectivity zone
Key Areas: Cheongju International Airport, Osong Station, downtown Cheongju, Jincheon, Eumseong, Chungju, Jecheon, and the Chungcheong Region wide-area transportation
axes Agenda: Is the expansion of airports, high-speed railways, metropolitan express railways, and expressways transcending a mere increase in through traffic to translate into actual connectivity for businesses, talent, tourism, logistics, and living areas, as well as the alleviation of regional disparities within North Chungcheong Province?
Golden Time Type: Opportunity + Network Conversion Risk
Reference Date: August 28, 2026
Version: Regional AX Golden Time Intelligence v3.1
Chungbuk's transportation infrastructure is already shifting from a nationwide transit axis to a nodal point of a super-regional economic zone . In 2025, the number of passengers using Cheongju International Airport reached 4,669,956, marking the highest figure since its opening, while Osong Station also broke its all-time record with 12,500,287 passengers. The daily average number of users at Osong Station increased to approximately 34,247, and the number of monthly users has exceeded 1 million for the past 10 consecutive months. The simultaneous record-high usage at both Cheongju Airport and Osong Station is the most direct evidence demonstrating that the transportation geography of Chungbuk itself is changing. ( Chungbuk Provincial Government )
The airport's growth trend continued in 2026. In January, Cheongju Airport recorded approximately 480,000 passengers, a 47.7% increase compared to the same month of the previous year, with international passengers reaching an all-time monthly high of 227,000. Passenger numbers reached 430,000 in February and 440,000 in March, marking year-on-year increases of 44.0% and 41.1%, respectively. In April, 411,952 passengers used the airport, marking an 18.4% growth compared to the same month of the previous year despite high fuel prices and reductions in some routes. To meet this demand, Korea Airports Corporation is pursuing plans to invest 316.8 billion won in Cheongju Airport and expand the international terminal's handling capacity from 1.52 million to 3 million passengers annually. ( Chungbuk Provincial Government )
Structural changes in the railway network are also proceeding simultaneously. The Chungcheong Metropolitan Express Railway (CTX) passed the private investment feasibility study in November 2025. With a total length of approximately 64.4 km connecting the Government Complex Daejeon, Government Complex Sejong, Jochiwon, and Cheongju International Airport, the Ministry of Land, Infrastructure and Transport aims to connect major hubs in Daejeon, Sejong, Cheongju, and Cheonan into a living zone within 30 minutes. A scenario was presented in which travel times were reduced from the original plan: from the Government Complex Daejeon to Cheongju Airport from approximately 100 minutes by public transport to 53 minutes, from the Government Complex Sejong to the Government Complex Daejeon from 60 minutes to 15 minutes, and from Osong Station to the North Chungcheong Provincial Government from 45 minutes to 13 minutes. However, this is still a project plan and projected effect , and should be distinguished from actual performance results upon opening. ( Ministry of Land, Infrastructure and Transport )
The internal axis of Chungbuk is also being strengthened. In the Ministry of Land, Infrastructure and Transport's 2026 work plan, the high-speed upgrade of the Chungbuk Line was presented as a project to begin construction in 2027, while the Sejong-Cheongju Expressway and the Jecheon-Yeongwol Expressway were included in the axis scheduled for 2026. The actual groundbreaking ceremony for the Jecheon-Yeongwol Expressway was held on July 21, 2026. The Chungcheong Inland Expressway, connecting Cheongju and Jecheon, is also being pursued with a total project cost of approximately 1.0056 trillion won, gradually improving accessibility to the northern internal region of Chungbuk. ( Ministry of Land, Infrastructure and Transport )
However, an increase in traffic volume and the integration of economic zones are not the same.
- Increase in airport users ≠ regional industry growth
- Increase in Osong Station users ≠ Formation of the Osong economic zone
- Railway opening ≠ Reduction of the opportunity gap between regions
- Highway expansion ≠ reduction in logistics costs for local businesses
- 30-minute living zone ≠ actual door-to-door 30 minutes.
The core Readiness GAP of Chungbuk Transportation AX lies not in a lack of infrastructure projects, but in the lack of integrated Mobility Intelligence to measure whether users of each transportation network actually transition to Chungbuk's businesses, industries, tourism, and local commercial districts .
Even though the annual number of users at Osong Station has exceeded 12.5 million, it is difficult to distinguish the structure based solely on publicly available data, determining whether they are simple transfer passengers, commuters to Sejong, employees of the Osong Bio Cluster, or visitors for tourism, consumption, and business in North Chungcheong Province. Similarly, while Cheongju Airport is used by over 4.66 million people, the specific effects on the local economy created by residents of North Chungcheong, users from Sejong, Daejeon, and southern Gyeonggi, foreign tourists, and business travelers must be analyzed separately.
Therefore, Chungbuk's Golden Time is not just the time to build more airports, stations, and roads.
The key is whether it is possible to transform a Transit Hub into an Economic Hub within the next two to three years by connecting the flow of airports, railways, and roads → actual travel time → movement of businesses, talent, tourism, and logistics → regional consumption and investment → diffusion of cities and counties using data .
Chungbuk has long presented its geographical location as the center of South Korea as a competitive advantage. North-south axes, such as the Gyeongbu, Jungbu, Jungbu Inland, and Jungang Expressways, intersect with east-west axes like the Pyeongtaek-Jecheon and Dangjin-Yeongdeok routes; furthermore, Osong Station is the only high-speed rail junction in the country where the Gyeongbu and Honam High-Speed Rail lines diverge. Given that it also possesses Cheongju International Airport, air, high-speed rail, and road networks overlap within a relatively small area. ( Chungbuk Provincial Government )
This geographical foundation translated into an increase in actual demand in 2025–2026. Usage figures of 4,669,956 at Cheongju Airport and 12,500,287 at Osong Station demonstrate that actual travel demand is concentrating in Chungbuk, moving beyond the accessibility advantages seen merely at the planning stage. ( Chungbuk Provincial Government )
However, the spatial distribution of transportation assets is not uniform within Chungbuk.
Osong Station and Cheongju Airport are located in the Cheongju area.
Jincheon and Eumseong are connected to the Seoul metropolitan area and Cheongju via the Jungbu Expressway and industrial complexes.
Chungju is the junction of the Jungbu Inland Line, the Jungbu Inland Expressway, and the Pyeongtaek-Jecheon Expressway.
Jecheon is connected to the Gangwon region via the Jungang Line, Chungbuk Line, and the Jecheon-Yeongwol Expressway.
Boeun, Okcheon, Yeongdong, Goesan, and Danyang have relatively different access conditions to the trunk network.
Therefore, the core of Chungbuk’s transportation policy lies not in the growth of large hubs themselves, but in how quickly and stably each region connects to the hubs .
Even if the number of passengers using Osong Station increases, if the actual door-to-door travel time for Danyang residents does not decrease, the regional disparity in high-speed rail accessibility will persist.
Even if the number of international flights at Cheongju Airport increases, if the travel time to the airport for residents of Yeongdong and Boeun is long, international air accessibility may remain a benefit centered on the Cheongju region.
Therefore, Chungbuk's transportation readiness should be measured by Hub Accessibility rather than the simple number of routes.
The success of transportation infrastructure is judged not by whether it is opened, but by how much it changes the movement structure of economic activity .
In 2025, Cheongju Airport surpassed 4.66 million annual passengers, and international flights also recorded an all-time high. By early 2026, the growth rate of international passengers had risen to the highest level in the nation. ( Chungbuk Provincial Government )
However, an increase in passengers does not immediately mean an increase in tourists or corporate investment in North Chungcheong Province.
Cheongju Airport is situated in a geographical location capable of absorbing demand not only from the Chungcheong region but also from parts of southern and northern Gyeonggi Province. Therefore, there is a possibility that a significant number of airport users may utilize the airport solely for transportation, without having Chungbuk as their final destination.
The same goes for Osong Station.
While the annual ridership of 12.5 million demonstrates its importance as a nationwide high-speed rail hub, the total volume of usage should not be calculated as an economic effect for North Chungcheong Province, given its significant function as a gateway and transfer station for Sejong City. ( North Chungcheong Provincial Government )
Therefore, the following relationships must be separated.
- Passenger Flow ≠ Local Value Capture
- Transit passengers ≠ Visitors
- Visitors ≠ Staying population
- Resident population ≠ Local consumption
- Opening of transportation network ≠ Change in business location
- Shortening travel time ≠ integrating living areas.
The biggest analytical error in Chungbuk's transportation policy is directly interpreting Transit Volume as Economic Outcome .
For transportation infrastructure to translate into regional growth, the path following the volume of movement must be tracked.
The process is movement → stay → consumption → work → investment → settlement.
The first change is that the transportation centrality of Chungbuk shifts from the center of the national trunk axis to the center of the Chungcheong region's living area .
Osong Station is already a junction point of the national high-speed rail network. The CTX is designed to connect this function with the daily living areas of Daejeon, Sejong, downtown Cheongju, and Cheongju Airport. If travel times to major hubs are reduced to the 30-minute range as planned by the Ministry of Land, Infrastructure and Transport, Osong Station and Cheongju Airport will no longer remain merely long-distance transportation facilities but will be incorporated as part of the metropolitan commuter network. ( Ministry of Land, Infrastructure and Transport )
The second change is that Cheongju Airport will move from a regional airport to an alternative international airport for the central region .
In 2025, the number of passengers exceeded 4.66 million, placing it among the top tier of regional airports, and in early 2026, there were months where international passenger numbers recorded a growth rate of 60–80% compared to the previous year. ( Chungcheongbuk-do Provincial Government )
The fact that Korea Airports Corporation is preparing for facility expansion and increased international flight handling capacity worth 316.8 billion won signifies that the current increase in passenger demand has begun to put pressure on existing facility capacity. ( Chungbuk Provincial Government )
The third change is that the internal transportation axis of North Chungcheong Province will be reorganized from a radial shape centered on Cheongju to an X-shaped and multi-nuclear shape .
The high-speed upgrade of the Chungbuk Line connects Cheongju Airport, Chungju, and Jecheon, while the Jungbu Inland Line connects Chungju to the southern Gyeonggi region and Mungyeong. The Jecheon-Yeongwol Expressway directly connects northern Chungbuk with southern Gangwon. ( Ministry of Land, Infrastructure and Transport )
The fourth change is that the transportation network shifts from being passenger-centric to reintegrating with industrial and logistics networks .
More than 70,000 vehicles pass daily on the Jeungpyeong-Hobop section of the Jungbu Expressway, and as bottlenecks have intensified due to the expansion of industrial complexes in Cheongju, Jincheon, and Eumseong and an increase in freight trucks, a preliminary feasibility study is currently underway for 2026. ( Chungbuk Provincial Government )
Traffic network bottlenecks are not limited to commuting time issues.
In the semiconductor, battery, and bio supply chains, time delays directly translate into production costs, inventory costs, and delivery risks.
Therefore, Chungbuk's transportation AX must move to a stage where Mobility and Supply Chain are managed with the same data .
At Cheongju Airport, facility expansion to meet increasing passenger demand is in full swing.
Korea Airports Corporation is pursuing the expansion of the international and domestic terminals, the construction of a second parking building, and the expansion of the apron through an investment of 316.8 billion won. Plans are underway to expand international passenger handling capacity from 1.52 million to approximately 3 million per year. ( Chungcheongbuk-do Provincial Government )
North Chungcheong Province has identified a mixed civilian-military runway structure as a long-term constraint on the airport and is pushing for a civilian-only runway and the enactment of a special act. This is also currently in the policy implementation stage and must be distinguished from the actual confirmation of the project. ( North Chungcheong Provincial Government )
In Osong, a shift is emerging toward connecting transportation facilities themselves with urban and industrial spaces.
North Chungcheong Province, Cheongju City, and the Korea National Railroad Corporation are pursuing a comprehensive development project targeting approximately 215,541 square meters around Osong Station by 2026 , integrating transfer, business, and commercial functions. Rather than simple residential development around the station, this is a complex hub model linked to the Osong Bio Cluster, OSCO, and the surrounding demand from Sejong. ( North Chungcheong Provincial Government )
In the railway sector, the feasibility of the CTX project has risen one step further after passing the private investment feasibility study, and the high-speed upgrade of the Chungbuk Line was designated as a project to begin construction in 2027 in the government's 2026 work plan. ( Ministry of Land, Infrastructure and Transport )
In terms of roads, the Sejong-Cheongju Expressway was included in the projects scheduled to begin construction in 2026, and actual construction of the Jecheon-Yeongwol Expressway commenced in July 2026. A preliminary feasibility study is currently underway for the Jeungpyeong-Hobop section of the Jungbu Expressway. ( Ministry of Land, Infrastructure and Transport )
Chungbuk is currently at a rare juncture where large-scale infrastructure improvements are proceeding simultaneously across airports, railways, and roads.
The question is whether these businesses are connected under a single economic zone design .
Chungbuk’s transportation assets have a combination that distinguishes them from other non-capital regions in the country.
High-speed rail junction stations and international airports are located within a range of about 20 to 30 km, and the Government Complex Sejong, Daejeon R&D axis, Cheonan manufacturing zone, and Cheongju high-tech industry are connected at a relatively short distance.
If the CTX is constructed as planned, it is highly likely that Daejeon, Sejong, and Cheongju will transcend administrative boundaries and function as a single, everyday labor market. The Ministry of Land, Infrastructure and Transport describes this as a "30-minute living zone" encompassing Daejeon, Sejong, Cheongju, and Cheonan. ( Ministry of Land, Infrastructure and Transport )
Chungbuk's strength is not the size of the large city itself.
It is not a structure where a single megacity like Seoul absorbs all functions.
- Daejeon R&D
- Sejong administration
- Cheongju High-tech Industry & Airport
- Osong High-Speed Railway and Bio
- The point is that it can connect Cheonan manufacturing.
Once this structure is completed, Chungbuk can shift from competing as an independent metropolis to competing as a Network City .
However, a networked economy is not created solely by connection speed.
Institutions, businesses, universities, housing, culture, transportation fares, transfer systems, and the job market must be connected together.
Therefore, Chungbuk must build an Economic CTX as much as a physical CTX.
The number of passengers using Cheongju Airport in 2025 is 4,669,956. ( Chungbuk Provincial Government )
Approximately 480,000 people used the service in January 2026, 430,000 in February, 440,000 in March, and 411,952 in April. Demand exceeding 400,000 was confirmed for four consecutive months. ( Chungcheongbuk-do Provincial Government )
An investment of 316.8 billion won is planned for airport infrastructure, and the annual international passenger handling capacity is intended to be expanded from 1.52 million to 3 million. ( Chungcheongbuk-do Provincial Government )
Osong Station was used by 12,500,287 people in 2025. This represents more than a tenfold increase in 14 years, from approximately 1.2 million people in 2011. ( Chungcheongbuk-do Provincial Government )
The target area for the Osong Station complex development is approximately 215,000 square meters. ( Chungbuk Provincial Government )
The total length of the CTX is approximately 64.4 km, and the plan is to connect Daejeon, Sejong, Cheongju, and Cheongju Airport into a living area within 30 minutes. ( Ministry of Land, Infrastructure and Transport )
More than 70,000 vehicles pass daily on the Jeungpyeong-Hobop section of the Jungbu Expressway, and a preliminary feasibility study for 2026 is currently underway. ( Chungbuk Provincial Government )
Construction of the Jecheon-Yeongwol Expressway actually began in July 2026. ( Ministry of Land, Infrastructure and Transport )
The direction these numbers show is clear.
The stage where people do not visit due to insufficient transportation infrastructure in Chungbuk is passing quickly.
Rather, the next problem changes like this.
People are already coming.
The train is already coming.
The number of airplanes is also increasing.
The road continues to expand.
In that case, the key is how much of that movement remains as economic value for Chungbuk .
The biggest data gap currently lies in the inability to connect traffic volume and local economic data.
The first is the gap between Passenger Volume and Local Value Capture .
Among the 4.66 million passengers at Cheongju Airport, the proportion of users connected to tourism, accommodation, and consumption in North Chungcheong Province must be continuously monitored.
The second is the gap between the transfer function and the urban function of Osong Station .
Although 12.5 million people use the station annually, the economic impact on the Osong region is limited if transfer passengers do not leave. The reason the comprehensive development of Osong Station aims to combine transfer, business, and commercial functions is also connected to this structure. ( Chungcheongbuk-do Provincial Government )
The third is the gap between Line Speed and Door-to-Door Time .
Even if CTX or high-speed trains are fast, the actual effect of integrating living areas is reduced if travel time and transfer waiting times from home, work, or school to the station are long.
The fourth is the gap between the wide-area network and the local network .
Even if travel between Cheongju, Sejong, and Daejeon becomes faster, internal disparities within North Chungcheong Province may persist if accessibility from Jecheon, Danyang, and Yeongdong to Osong and Cheongju Airport is insufficient.
The fifth is the gap between the passenger network and the logistics network .
Even if Cheongju Airport grows rapidly into an international passenger airport, its industrial ripple effects will be limited unless air cargo, cold chain, bio-logistics, and semiconductor emergency logistics are integrated.
The sixth is the gap between infrastructure planning and spatial development .
If only residential and commercial areas around the station are expanded without combining businesses, research, startups, and culture, transportation improvements could again promote the development of the area into a bedroom community.
The biggest Readiness GAP in Chungbuk's transportation is not the infrastructure itself, but the Conversion Layer that connects the transportation network with the economy, industry, and living areas .
Chungbuk needs Regional Mobility Intelligence that comprehensively analyzes airports, railways, and roads .
A significant portion of the basic data already exists.
Airports have flight data by route, passengers, and time of day.
The railway has boarding and alighting and operation information for each station.
Highways accumulate data on traffic volume and vehicle types.
Public transportation has transportation card, route, and transfer data.
By utilizing telecommunications data, it is also possible to analyze the resident population and the actual stay of visitors.
The problem is that each piece of data is separated.
In the future, Chungbuk needs to connect Origin → Access → Hub → Destination → Stay → Spend .
It is necessary to continuously analyze the departure locations of airport users, whether they travel to Sejong, Cheongju, or Osong after using Osong Station, how actual commuting directions change after the opening of the CTX, and how much logistics time decreases after the expansion of the expressway.
Transportation policy indicators must also shift from route openings to actual reductions in travel time.
When linking this to economic policy, it is necessary to track the progression from reduced travel time → business accessibility → expansion of recruitment areas → tourism stay → local consumption .
The resident effect of a transportation network is manifested in travel time and options.
If the CTX actually achieves its planned travel times, the feasible commuting range between Osong/Cheongju and Sejong/Daejeon will be significantly expanded. Planned figures of approximately 53 minutes from the Government Complex Daejeon to Cheongju Airport, 15 minutes from the Sejong Complex to the Daejeon Complex, and 13 minutes from Osong Station to the North Chungcheong Provincial Government represent a substantial structural change compared to existing travel times. However, these figures must be re-verified through actual door-to-door travel times after the line opens. ( Ministry of Land, Infrastructure and Transport )
For companies, the scope of the labor market changes.
It may become easier for biotech companies in Osong to recruit research personnel from Sejong and Daejeon.
Cheongju semiconductor companies are getting closer to the talent market in Cheonan and Sejong.
Research cooperation between Daejeon research institutions and the Osong Bio Cluster can also be transformed into routine movement.
On the road, easing bottlenecks on the Jungbu Expressway directly impacts the logistics times of manufacturing companies in Cheongju, Jincheon, and Eumseong. Congestion on the Jeungpyeong-Hobop section, which sees over 70,000 vehicles pass through daily, is linked to risks regarding transportation times, delivery times, and shipping costs for local businesses. ( Chungbuk Provincial Government )
For residents and businesses, the fact that transportation AX is going down does not mean that a new route has been created.
The extent to which actual travel time, commuting feasibility, delivery time, and travel options have decreased or increased is the performance.
The expansion of Chungbuk's transportation network could reduce regional disparities, or conversely, strengthen the concentration of key hubs.
Cheongju and Osong will simultaneously secure an airport, KTX, and the future CTX.
If accessibility to Sejong and Daejeon is also improved, there is a possibility that demand for businesses, talent, and housing will once again concentrate in Cheongju and Osong.
Jincheon and Eumseong can grow into a manufacturing and logistics hub through accessibility to the Jungbu Expressway and Cheongju Airport.
Chungju can become a distinct hub in the northern region based on the Central Inland Line and the expressway network.
Jecheon has the potential to become an intersection hub connecting not only the Cheongju area but also the Gangwon area through the Jecheon-Yeongwol Expressway, which began construction in July 2026, and the future high-speed upgrade of the Chungbuk Line. ( Ministry of Land, Infrastructure and Transport )
In regions like Danyang, Yeongdong, Boeun, and Goesan, where access to the main network is relatively difficult, the connection of the first and last 20 to 40 km is more important than the opening of the major transportation network itself.
Therefore, traffic balance in North Chungcheong Province is not a matter of equitably placing stations or interchanges.
A method is needed to manage door-to-door travel times from city/county centers to metropolitan transportation hubs to keep them below a certain level.
Chungbuk's spatial AX should be approached as Access Equality rather than Hub Equality .
2026 is the point in time when the structure of Chungbuk's transportation network for the next 10 to 20 years will be decided simultaneously.
CTX has passed the private investment eligibility assessment and entered subsequent procedures. ( Ministry of Land, Infrastructure and Transport )
According to government plans, construction for the high-speed upgrade of the Chungbuk Line is scheduled to begin in 2027. ( Ministry of Land, Infrastructure and Transport )
The Sejong-Cheongju Expressway has been included in the projects scheduled to begin construction in 2026. ( Ministry of Land, Infrastructure and Transport )
Construction of the Jecheon-Yeongwol Expressway began in July 2026. ( Ministry of Land, Infrastructure and Transport )
A preliminary feasibility study for the expansion of the Jungbu Expressway between Jeungpyeong and Hobop is currently underway in 2026. ( Chungbuk Provincial Government )
Cheongju Airport is pursuing facility expansion worth 316.8 billion won in anticipation of reaching the era of 5 million passengers. ( Chungbuk Provincial Government )
A mixed-use development project spanning approximately 215,000 square meters has begun at Osong Station. ( Chungbuk Provincial Government )
In other words, we are currently in the initial stage where we can design the route and the spatial structure around the station simultaneously .
Once transportation infrastructure is completed, the locations of routes and stations cannot be easily changed.
If land use around a station becomes entrenched in a residential and commercial focus within the first few years, it becomes difficult to incorporate industrial, research, and cultural functions thereafter.
Designing the transfer system after the CTX opens is also too late.
It is also inefficient to create strategies linking access transportation with tourism and industry after the airport has surpassed 5 million passengers.
The irreversible risk for Chungbuk is not the inability to secure a transportation network.
It is to create a good transportation network and still remain a transit area .
12-1. Golden Time Application Case in Basic Local Governments ① — Cheongju City
Cheongju is the region where most of Chungbuk's transportation assets are concentrated.
Cheongju Airport recorded 4,669,956 passengers in 2025 and over 400,000 monthly passengers in early 2026. ( Chungbuk Provincial Government )
Osong Station surpassed 12.5 million people in 2025. ( Chungbuk Provincial Government )
If the CTX proceeds as planned, Cheongju Airport, downtown Cheongju, and Osong will be directly connected to Daejeon and Sejong.
The Cheonan-Cheongju Airport double-track railway and the double-tracking of the Pyeongtaek-Osong line also have the potential to further expand demand for airport and high-speed railways in the long term. ( Chungbuk Provincial Government )
Cheongju's Golden Time lies in the fact that it does not operate these three transportation assets individually.
Cheongju Airport, downtown Cheongju, and Osong Station must be operated as a single Tri-Hub Mobility Zone .
It is a structure where airport users travel to the Osong Bio Cluster and downtown Cheongju, KTX users connect to the international terminal at Cheongju Airport, and the CTX links the two hubs into an everyday living area.
The most important thing in this process is the connection between mobility information and economic information.
It is possible to link airport arrival times, KTX and CTX timetables, downtown accommodation and tourism, OSCO exhibitions, and business trip demand from Osong bio-companies in real time.
The Cheongju-style Golden Time is not about possessing three massive transportation facilities, but about transforming the three facilities into a single economic platform .
12-2. Golden Time Application Cases in Basic Local Governments ② — Jecheon City
Jecheon is a region experiencing a traffic shift opposite to that of Cheongju.
Construction of the Jecheon-Yeongwol Expressway actually began in July 2026. This project is being pursued as a new east-west axis connecting the Chungcheong and Gangwon regions. ( Ministry of Land, Infrastructure and Transport )
Once the high-speed upgrade of the Chungbuk Line is completed, railway accessibility between Cheongju Airport, Chungju, and Jecheon will also improve. The existing plan proposed significantly reducing travel time between the Cheongju and Jecheon regions and forming a national X-axis railway network connecting Mokpo, Chungbuk, and Gangneung. ( Chungbuk Provincial Government )
Therefore, Jecheon is not a region where only accessibility to the metropolitan area is improved.
You can move to the Cross-border Node , which connects to national zones via Cheongju and Osong to the west, Chungju to the south, Yeongwol and Gangwon to the east, and the Jungang Line and Chungbuk Line by railway .
However, even if transportation networks are strengthened, if local industries remain unchanged, there is a possibility that it could become a channel for visitors and talent to move out more quickly.
If connected with No. 014's Natural Products & Bio and No. 018's Future Jobs for Youth, Jecheon's Transportation Golden Time is
We must transition from improved accessibility → increased industrial and tourism visits → longer stays → influx of businesses and talent → local settlement.
In Jecheon, the effect of road opening needs to be measured by length of stay, tourism consumption, industrial investment, and youth inflow rather than traffic volume.
The first loss is the entrenchment of the pass economy .
Even if the number of passengers using Osong Station and Cheongju Airport continues to increase, if local stay, consumption, and business activities do not grow, the economic benefits of the transportation hub may be attributed to external regions.
The second is the simple residentialization of station area development.
If only residential and commercial facilities are concentrated around stations with improved transportation accessibility, job-creating functions such as businesses, research, and startups may revert to being centered in Cheongju, Sejong, and Daejeon.
The third is the internal gap.
While accessibility to Cheongju and Osong continues to improve, if travel times to the northern and southern hubs are not reduced, the transportation gap in Chungbuk could actually widen.
The fourth is the acceleration of the outflow of youth.
As transportation becomes faster, young people can more easily commute or move to areas where good local jobs are not created.
The fifth is the loss of logistics competitiveness.
If the bottleneck on the Jungbu Expressway persists, the risk of transit times for companies could increase as freight demand rises alongside the growth of the semiconductor, battery, and manufacturing industries. ( Chungbuk Provincial Government )
The sixth is the loss of airport opportunities.
At a time when international routes at Cheongju Airport are growing rapidly, if foreign tourists, business travelers, and air cargo are not connected to Chungbuk's industries, the airport could become stagnant as a mere departure terminal.
The biggest loss is the structure where the infrastructure is in Chungbuk, but the economic effects move outside of Chungbuk .
Chungbuk can utilize an economic zone larger than its industrial scale through its transportation network.
Although Cheongju has a population of approximately 850,000, if the CTX and high-speed rail connect to Daejeon, Sejong, and Cheonan, the labor, research, and consumption markets accessible to companies will become much larger.
Bio companies in Cheongju and Osong can collaborate with research personnel in Daejeon on a daily basis.
Business accessibility between public institutions in Sejong and companies in Cheongju is improved.
Travel times between manufacturing companies in Cheonan and the supply chains in Ochang and Jincheon can also be shortened.
Jecheon can expand its economic sphere to the Gangwon region.
Cheongju Airport directly connects Chungbuk to international travel and business networks.
If this structure is established, Chungbuk can compensate for the limitations of a large city scale with a network scale .
In addition, using AX allows the transportation network itself to be operated more efficiently.
By connecting airport, railway, bus, and highway data to predict travel demand, and
Bus and train schedules are adjusted according to airport arrival times,
Optimize corporate shuttles and public transportation based on commuting demand in industrial complexes, and
By utilizing tourist movement data, visitors can be distributed to Jecheon, Danyang, and Chungju.
The next stage of Chungbuk's transportation policy is to move from Infrastructure Construction to Mobility Orchestration .
Changes to observe | Things to do with AX | Policy decision | Verification indicators |
| Cheongju Airport users | Origin-Destination Analysis | Route and transportation connectivity | Chungbuk stay rate |
| Osong Station users | Transfer and Destination Analysis | Relocation of station area functions | Offshore stay and consumption |
| CTX | Real-life living area simulation | Transfer and Bus Pre-design | Door-to-Door time |
| industrial commute | Analysis of firm and worker mobility | Commuter buses and public transportation | Commute time |
| Jungbu Expressway | Cargo and Passenger Car Demand Forecast | Expansion and bypass axis | Logistics time |
| Chungbuk Line | Cheongju-Chungju-Jecheon Connection | Industrial and tourism products | Movement volume and stay |
| Airport International Terminal | Linking foreign visitor data | Tourism and Business Programs | Accommodation and consumption |
| Air and rail logistics | Emergency Logistics Analysis by Industry | Establishment of a cargo network | Transportation time and costs |
| Station area development | Digital Twin for Lifestyle and Business Demand | Allocation of uses | Job/Housing Ratio |
| City/County Accessibility Gap | Hub Access Map | Priority investment in connecting transportation | Population with access in 60-90 minutes |
The core Runtime must be managed in the following order: transportation infrastructure → actual travel time → travel volume → stay, commuting, and logistics → business, tourism, and consumption → regional income and employment → diffusion of cities and counties .
Opportunity + Network Conversion Risk
Chungbuk's transportation infrastructure readiness is rapidly increasing.
Cheongju Airport and Osong Station have already recorded all-time high usage. ( Chungbuk Provincial Government )
A facility expansion worth 316.8 billion won is being pursued at Cheongju Airport. ( Chungbuk Provincial Government )
The CTX has passed the private investment feasibility study and entered the next phase of linking Daejeon, Sejong, Cheongju, and Cheonan into a 30-minute living zone. ( Ministry of Land, Infrastructure and Transport )
The high-speed upgrade of the Chungbuk Line, the Sejong-Cheongju Expressway, and the Jecheon-Yeongwol Expressway are also being pursued sequentially. ( Ministry of Land, Infrastructure and Transport )
Therefore, it is not appropriate to define Chungbuk's problems solely as a lack of transportation infrastructure.
The biggest risk currently is Network Conversion Risk .
While transportation networks are rapidly established, there is insufficient system to track how much of this translates into corporate recruitment areas, regional tourism stay durations, logistics costs for SMEs, career choices for young people, and sales for local commercial districts.
As the transportation network becomes stronger, it becomes easier to connect with surrounding major cities.
This can have the effect of attracting people to Chungbuk while simultaneously causing people and consumption to flow out of the region.
Therefore, the current Golden Time is determined by Opportunity + Network Conversion Risk .
- Cheongju Airport Monthly and Annual Total Passengers
- International passenger ratio
- Distribution of airport passengers' departure regions
- foreign tourist ratio
- Chungbuk stay/accommodation conversion rate
- Number of international scheduled routes
- Air cargo throughput
- Actual progress rate of airport terminal expansion
- Osong Station annual users
- Osong Station transfer passenger ratio
- Final destination for Osong Station users
- Average time spent around Osong Station
- CTX follow-up project schedule
- CTX Actual Project Cost, Start of Construction, and Opening Date
- CTX Estimated and Actual Users by Station
- Door-to-Door Commuting Time After CTX Opening
- Actual start date of construction for the Chungbuk Line high-speed rail project
- Cheongju~Chungju~Jecheon Travel Time
- Actual progress rate of the Sejong-Cheongju Expressway
- Jecheon-Yeongwol Expressway construction progress rate
- Results of the preliminary feasibility study for the expansion of the Jungbu Expressway between Jeungpyeong and Hobop
- Average freight transport time in industrial complexes
- Access times to Osong Station and Cheongju Airport by city/county
- Changes in corporate investment and net youth migration in transportation improvement areas
- Growth rate of local consumption and employment relative to transportation network usage
The most significant data gap at present is that it is difficult to measure the actual Local Value Capture of Chungbuk by connecting the large-scale usage of Cheongju Airport, Osong Station, and the expressway to who → where → why → where they moved → and how long they stayed, consumed, and worked .
Runtime Chain
Airports, railways, roads → Hub access → Actual door-to-door time → Movement, commuting, logistics → Stay → Consumption, work → Business location, employment → Local settlement → Expansion of cities and counties
The first key evidence is the simultaneous growth of Cheongju Airport and Osong Station. Both recorded all-time high ridership figures, with Cheongju Airport projected to reach 4,669,956 passengers and Osong Station 12,500,287. Passenger numbers at Osong Station increased more than tenfold in 14 years, rising from approximately 1.2 million in 2011. ( Chungbuk Provincial Government )
The second factor is the growth rate of Cheongju Airport. From January to March 2026, the passenger growth rate exceeded 40% every month, and international flights increased by 78.4% in March compared to the same month of the previous year. More than 410,000 people used the airport in April as well. To meet this demand, Korea Airports Corporation is pursuing facility investments worth 316.8 billion won. ( Chungbuk Provincial Government )
The third point is the institutional progress of the CTX. It passed the private investment feasibility study in November 2025, and the axis connecting the Government Complex Daejeon, the Government Complex Sejong, Jochiwon, and Cheongju International Airport—with a total length of approximately 64.4 km—has entered full-scale follow-up procedures. The currently presented 30-minute commuting zone effect is still a projected value and must be re-verified after actual opening. ( Ministry of Land, Infrastructure and Transport )
The fourth point is the simultaneous expansion of the inner axis of North Chungcheong Province. The high-speed upgrade of the Chungbuk Line was included in the government plan with a target groundbreaking in 2027, and the Sejong-Cheongju Expressway was proposed as a project to begin construction in 2026. Construction of the Jecheon-Yeongwol Expressway actually began in July 2026. ( Ministry of Land, Infrastructure and Transport )
The fifth point is evidence regarding logistics bottlenecks. The Jeungpyeong-Hobop section of the Jungbu Expressway is used by more than 70,000 vehicles daily, and the expansion of industrial complexes in Cheongju, Jincheon, and Eumseong, along with an increase in freight trucks, have been identified as causes exacerbating congestion. A preliminary feasibility study is currently underway for 2026. ( Chungbuk Provincial Government )
The sixth point is that Osong Station has begun to transform from a through station into a complex hub. North Chungcheong Province, Cheongju City, and the Korea National Railroad Corporation are pursuing comprehensive development combining transfer, business, and commercial functions across an area of approximately 215,541 square meters. ( North Chungcheong Provincial Government )
Structural insights remaining from this analysis
Chungbuk has long emphasized its geographical strength of being “at the center of South Korea.”
Evidence for 2025–2026 shows that the expression is moving beyond a simple slogan into actual movement volume.
12.5 million people visit Osong Station annually.
More than 4.66 million people visit Cheongju Airport.
Tens of thousands of vehicles pass on the highway every day.
The CTX, Chungbuk Line, and Jecheon-Yeongwol Expressway will also be added.
Therefore, the question is no longer “Is Chungbuk a transportation hub?”
It should be changed to “What do people who move leave behind in Chungbuk?”
There are two types of transportation hubs.
One is Transit Hub .
Many people are passing by.
The other one is the Economic Hub .
As people pass by, they leave behind businesses, consumption, research, tourism, and jobs.
If most of the 12.5 million people at Osong Station transfer there, it is a very important station for the national transportation system, but the effect on the local economy may be relatively limited.
Conversely, if even a portion is connected to the Osong Bio Cluster, OSCO, businesses, accommodation, and tourism, the economic value of the same number of users changes significantly.
Cheongju Airport is the same.
The benefits are significant even if Chungbuk residents use it for overseas travel alone.
However, if foreigners, visitors from the Seoul metropolitan area, and the Chungcheong region stay, spend, and visit companies in North Chungcheong, the airport transforms into an industrial and tourism platform.
Therefore, Chungbuk's transportation policy needs an indicator at the next stage after Passenger Count .
That indicator is the Capture Rate.
- What percentage of airport users stay in Chungbuk for more than one day?
- What percentage of Osong Station users spend money outside the station?
- What percentage of CTX users are connected to the labor market of companies and universities in Chungbuk?
- By what percentage did highway improvements reduce logistics costs for manufacturing companies?
This is Local Value Capture of the transportation network.
CTX should also be viewed from the same perspective.
Connecting Daejeon, Sejong, and Cheongju within 30 minutes does not necessarily mean it is unconditionally advantageous for Chungbuk.
It will become easier for highly skilled professionals from Daejeon and Sejong to commute to Cheongju.
At the same time, young people in Cheongju may be able to commute to Sejong and Daejeon more easily.
It becomes easier for Cheongju consumers to spend in Daejeon and Sejong, and conversely, it becomes easier for Daejeon and Sejong residents to visit Cheongju.
Traffic does not operate in one direction.
Therefore, Connectivity itself has no directionality.
The direction in which the regional economy moves is determined by the competitiveness of industry, housing, culture, commerce, and education.
For this reason, it is insufficient to view CTX solely as a railway project.
Even before the CTX opens, decisions must be made for each station regarding which companies to attract, what housing to supply, which universities and research institutions to connect with, and what tourism and cultural functions to establish.
This is Economic CTX .
The Osong Station comprehensive development is also located at the same junction.
The station area of approximately 215,000 square meters can also be developed into a simple commercial and residential area.
Alternatively, it could be developed into a new employment hub between Sejong and Cheongju by combining biotech companies, global business, conventions, startups, and transit functions. ( Chungbuk Provincial Government )
Depending on the choice, Osong Station could remain a massive transfer station or become the center of a new urban economy.
The same problem exists within North Chungcheong Province as well.
When the Jecheon-Yeongwol Expressway opens, travel time from Jecheon to Gangwon will be reduced.
That itself does not mean regional economic growth.
Tourists can more easily bypass Jecheon and go to Gangwon.
Conversely, if Jecheon's natural products, tourism, and bio-content are strong, visitors from Gangwon and the Seoul metropolitan area will enter Jecheon more easily.
Transportation networks are a multiplier that amplifies regional competitiveness , not a substitute for competitiveness itself.
Therefore, Chungbuk's transportation AX must move beyond predicting traffic volume to predicting economic flow .
We predict which countries visitors will arrive from and where they will stay when new international routes are launched at Cheongju Airport.
Once a CTX station is confirmed, changes in population, housing, businesses, and commercial areas around the station are simulated.
Tracks changes in corporate logistics costs and delivery times before and after the expansion of the Jungbu Expressway.
Compares the flow of tourist and resident populations before and after the opening of the Jecheon-Yeongwol Expressway.
This can be built as a single Chungbuk Mobility Digital Twin .
It is a structure that overlays data on transportation networks, industrial complexes, tourist attractions, universities, hospitals, commercial districts, and housing onto the same map to simulate where movement and economic activity shift when new routes are introduced.
The high-tech industries of No. 013, youth jobs of No. 018, industrial infrastructure of No. 019, and the transportation network of this No. 020 are ultimately connected as one.
Companies do not locate based solely on electricity and water.
Talented individuals must be able to commute to and from work.
You must be able to transport the product.
Customers and researchers must be able to visit.
It must be possible to connect with overseas.
In other words, Chungbuk's AX industrial ecosystem is completed when Power + Water + Talent + Mobility are simultaneously in a Ready state.
The reason why 2026–2028 is the Golden Time is that major projects are still in the early stages of design and construction.
It is still possible to design the station area functions of the CTX.
The use of the Osong Station complex development can still be adjusted.
It is possible to design the expansion of Cheongju Airport and connecting transportation together.
It is also possible to create industry and tourism linkage strategies for each station of the Chungbuk Line high-speed rail project.
Industrial and tourism strategies for the area surrounding the Jecheon-Yeongwol Expressway can also be prepared now while construction is underway.
It is difficult to change the physical structure after the line is completed.
Therefore, what needs to be designed now is not just the alignment of the railway and road.
It is about what kind of people, companies, money, and data will be moved along that path .
Golden Time Thesis — The golden time for transportation in Chungcheongbuk-do is not the time required to achieve specific figures such as 5 million passengers at Cheongju Airport, 13 million at Osong Station, or the opening of the CTX. The key lies in whether, within the next two to three years, we can design Cheongju Airport, Osong Station, the CTX, the Chungbuk Line, and expressways into a single Mobility → Stay → Work → Spend → Invest network, thereby transforming "Chungbuk, the most frequently traversed region in Korea" into "a Chungbuk where people and businesses stay and connect." If transportation networks merely accelerate without accompanying changes to local industries, jobs, commercial districts, and tourism, Chungbuk may remain a transit economy despite securing the highest level of connectivity. Conversely, if mobility volume is converted into regional value, Chungbuk can transcend the limitations of its urban scale and secure a Network Economy connecting Daejeon, Sejong, and Chungnam.
Version | Reference Date/Revision Date | Major changes |
| v1.0 | 2026.08.28 | This study cross-referenced the following: the record-high usage figures of 4,669,956 at Cheongju Airport and 12,500,287 at Osong Station in 2025; the surge in passengers at Cheongju Airport and 316.8 billion won in facility expansion in 2026; the passing of the CTX private investment feasibility study and the plan for a 64.4km 30-minute living zone; the plan to start construction on the high-speeding of the Chungbuk Line in 2027; the start of construction on the Jecheon-Yeongwol Expressway in July 2026; the bottleneck and preliminary feasibility study of the Jungbu Expressway between Jeungpyeong and Hobop; and the 215,000㎡ complex development at Osong Station. Through the case of Cheongju and Jecheon, the Runtime of Airport/Railway/Road → Actual Travel Time → Movement/Stay/Logistics → Consumption/Business/Investment → Local Employment/Settlement and the Chungbuk Mobility Digital Twin were presented, and the Golden Time was determined as Opportunity + Network Conversion Risk. |
