• Journal of Advanced Navigation Technology
• /
• v.28 no.4
• /
• pp.472-479
• /
• 2024

Half of the world's total population lives in cities, continuous urbanization is progressing, and the urban population is expected to exceed two-thirds of the total population by 2050. To resolve this phenomenon, the Korean government is focusing on building a new urban air mobility (UAM) industrial ecosystem. Airlines are also part of the UAM industry ecosystem and are preparing to improve efficiency in safe operations, passenger safety, aircraft operation efficiency, and punctuality. This study performs demand forecasting using time series data on the number of daily passengers on Korean Air's Gimpo to Jeju route from 2019 to 2023. For this purpose, statistical and machine learning models such as SARIMA, Prophet, CatBoost, and Random Forest are applied. Methods for effectively capturing passenger demand patterns were evaluated through various models, and the machine learning-based Random Forest model showed the best prediction results. The research results will present an optimal model for accurate demand forecasting in the aviation industry and provide basic information needed for operational planning and resource allocation.

• Proceedings of the Korean Society of Community Living Science Conference
• /
• 2009.09a
• /
• pp.104-104
• /
• 2009

IMF로 인한 경제위기 시기에 도시에서 농촌으로 귀농 가구가 증가하는 현상이 나타났으나 이후 경제가 활성화 되면서 감소하였다. 연도별 귀농가구의 동향은 1998년 6,409가구를 정점으로 1999년에 4,118가구로 감소하였다가 2001년경에는 매년 1000가구 미만의 수준으로 하락하였으나 2008년 말 기준으로 2,218가구에 이르는 비교적 증가하는 추세를 보이고 있다. 한편 지방자치단체 특히 인구 과소화 시군에서는 도시민 유치를 위하여 경쟁적으로 귀농자 지원조례를 제정하여 정착하는 귀농인들을 지원하고 있다. 급기야 2009년 4월에는 중앙정부 차원에서 '귀농귀촌 종합대책'이 발표되었다. 도시에서 농촌으로 이주하는 원인으로는 농업을 직업으로 선택한 결과에 따른 것도 있지만 건강한 생활 및 웰빙 전원생활 영위를 위한 이주 등 그 원인이 다양화 되어 가고 있다. 이주하는 개인의 다양한 동기와 함께 지방자치단체의 지원책 또한 하나의 유인요인이 된다고 할 수 있을 것이다. 귀농귀촌 인구가 증가세를 보이기 시작한 2000년대 중반은 정부와 지방자치단체의 귀농귀촌인 지원대책이 시작된 시기임을 볼 때 그 연계성을 짐작할 수는 있으나 검증된 바는 없다. 그렇지만 귀농인의 입장에서는 선배 귀농인이 많이 거주하거나 지원정책이 잘 되어 있는 곳을 선택하게 될 가능성은 높은 것도 사실이다. 본 연구에서는 귀농인 지원을 위하여 각 지방자치단체가 제정한 지방조례의 내용과 차이점을 분석하고자 한다. 2009년 6월 기준으로 전국 34개 시군에서 지방조례를 제정하였고 이중 13개 시군에서는 시행규칙도 완비하였다. 조례의 주된 내용은 귀농귀촌인에 대한 빈집수리비용, 의료 학자금, 영농정착금, 농지구입자금 등을 지원하는 것으로 되어 있다. 물론 그 지원 규모에 있어서는 다소의 차이가 있지만 귀농귀촌인에 대한 자금의 직접적 지원에 초점이 맞춰져 있다. 귀농자들이 지역사회에 안정적으로 정착하고 정주할 수 있으려면 직접적 자금지원을 벗어나 지역네트워크를 형성하고 지원해 주는 것이 필요할 것으로 사료된다.

• Journal of the Korea Convergence Society
• /
• v.12 no.2
• /
• pp.221-231
• /
• 2021

This paper identify factors of migration of employees' household who work for relocated public institutions. As a factors of migration, we consider individual and household characteristics, the gravity model of distance and population and so on. Considering discrete dependant variable and structure of data, we employ the logistic multilevel model and random intercept model. The result indicates employees' who are female, 30s and 40s, higher education level(PhD) and whose spouse are unemployed tend to transfer their residential registration to new city near relocated public institution. Regarding regional variable, the distance from employee's previous residential location and number of migration of prior year are statistically significant. Also the model indicate regional economy, educational and residential environment of new city influence employee's decision for transferring residential registration.

• The Journal of Bigdata
• /
• v.9 no.1
• /
• pp.127-140
• /
• 2024

This study investigated the impact of vehicle grade operation restrictions in green transportation areas on the concentration of fine particulate matter (PM2.5) year by year. The results indicate that these restrictions positively affected the reduction of PM2.5 levels. The green transportation area policy reduced vehicle emissions and encouraged the use of public and eco-friendly transportation, thereby improving air quality. A notable outcome was the decrease in PM2.5 concentrations, which is expected to positively impact the health of residents in urban areas. The study considered various factors and variables related to the effectiveness of the vehicle grade operation restrictions policy. It was determined that there is a need to discuss the implementation methods of the policy, regional characteristics, and other environmental factors. These findings provide important implications for managing fine particulate matter and urban planning, suggesting that reference materials and ongoing research will be necessary considering future urban sustainability.

• Knowledge Management Research
• /
• v.24 no.4
• /
• pp.131-152
• /
• 2023

One of the key domains within a smart tourism city, smart mobility, encompasses advanced transportation means and services rooted in Information and Communication Technology (ICT). This includes shared bicycles, scooters, car-sharing services, smart transportation infrastructure, and more, aiming to surpass limitations of conventional transport and improve the movement of people and goods. It also serves tourists as an affordable and convenient mode of transport between attractions while also enhancing the overall travel experience. This study has defined 'smart tourism mobility' as a form of mobility grounded in ICT, exhibiting exceptional connectivity, serving public interest, and serving as a mode of transport for both residents and tourists in a smart tourism city. The research aimed to outline the scope of smart tourism mobility-related industries through expert Delphi surveys and estimate their economic effects within a smart tourism city. Specifically, this study updated 2015 input-output table and made 2020 regional input-output table of Seoul adopting RAS method and location quotient method. The results showed that the about 2.8 billion KRW investment of Seoul in smart tourism mobility may create more than 4.1 billion KRW in production inducement effect which is expected to create more than 1.6 billion KRW of income-inducing effect, 3.6 billion KRW of value-added-inducing effect, and 54 employment across all industries in Seoul in 2022.

• Journal of Cadastre & Land InformatiX
• /
• v.51 no.2
• /
• pp.125-139
• /
• 2021

Continuous subway line expansion over the years in Seoul metropolitan area has contributed to improved accessibility to public transport. Since public transport accessibility has a significant impact on housing decisions, quantitative analysis of correlation between housing prices and public transport accessibility is regarded as one of the most important factors for planning better housing policies. This study defines the reduction of traveling time resulted from the construction of new metro stations despite them not being the closest stations as 'Network Expansion Effect', and seeks to understand how the Network Expansion Effect impacts on housing prices. The study analyzes monthly rent data converted from upfront lump sum deposit, so called Jeonse in Korea, from 2012 to 2018, through 'A Modified Repeat Sales Model.' As a result, the effect of 'Network Expansion' on rental prices in Seoul has stronger during the period of 2017 to 2018 than the base period of 2012 to 2014, which suggests the 'Network Expansion' has a meaningful effect on rent. In addition, in comparison between the most and the least affected group of apartments by 'Network Expansion Effect', the most affected group has more price increase than the least affected group. These findings also indicate that different levels of 'Network Expansion Effect' have various influences on the value of residential real estate properties.

• Journal of the Economic Geographical Society of Korea
• /
• v.12 no.4
• /
• pp.521-539
• /
• 2009

This study investigates the time-space characteristics of the road traffic flows in Seoul and the relationship with land use patterns. For the purpose, we analyze the road traffic data collected at 118 observation sites over Seoul City area since 1993. We examine the time-trend of the annual average traffic flows per day during the last fourteen years. Three different trends are revealed: rapid increase during the time period between 1993 and 1997, maintenance same level after sharp decrease between year 1997 and 1998, and gradual decrease after sharp decrease between year 2003 and 2004. The spatial distribution patterns of road traffic flows have also been changed significantly during the period. The traffic flows in the urban center have been declined gradually, while the traffic flows in the boundary area and southern CBDs have increased dramatically. In order to examine the relationship with the changes in the land-use patterns and road traffic flows, we analyze the changes in the spatial distribution patterns of population and industries. We developed three multiple linear regression models to test the relationships between the changes in the land-use variables and road traffic flows.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.49 no.2
• /
• pp.41-50
• /
• 2021

This study was conducted to see the differences of park users by classifying them with their park use frequency in terms of park use, management policy and perception, using the same survey results conducted in 2014 and 2020. Research was conducted on urban parks in Yangju, South Korea, and 740 in 2014 and 431 in 2000 survey results were used. After classifying the high-use and low-use groups according to park use frequency, this study compared the demographic differences and park use method differences according to the group, the recognition differences for the future park management direction between the two groups were analyzed and compared using statistical analysis by year. The results showed that the park's quantitative expansion and accessibility improvements were the most important issues in 2014, while the importance of park management, such as checking and improving aging facilities, providing various programs, and creating a themed neighborhood park that could reveal the identity of the area, was increased in 2020. Despite recognizing the importance of persistent management in the case of high-use groups, the results showed that they were less willing to participate in park management programs compared to less-use groups, which showed the need for a discussion of how to involve high-use groups for long term park management. This study contribute the body of literature that it seeks to understand differences of park user in terms of their park use frequency. However, in future studies, analyzing the differences of park users through a short-term study is required.

• Journal of the Korean association of regional geographers
• /
• v.20 no.2
• /
• pp.163-175
• /
• 2014

This study is to explain social capital characteristics of Filipino immigrant women at the level of neighborhood. This research targeted Filipino immigrant women in the metropolis, small town and rural area in Korea to find out the relevance of individual property and characteristics of the community and social capital of neighboring communities- school community, cathedral community, etc- through measurement of the participants' recognition. This study reveals that differences exist in the relationship between length of residence and social capital in the school community and the catholic church community. There is a significant positive relationship between length of residence and political factors in the catholic church community, thereby having a better relationship with longer period of stay, while length of residence and confidence show a negative trend in the school community, leading to less confidence. The catholic church community holds a dominant position in homogeneity, cohesion, and the amount of social capital. According to the findings, social capital 'relation' is more closely related to homogeneity of the community, 'norms' to cohesion. 'Relation and norms' and 'confidence and politics' factors are recognized similarly in both communities, thus resulting in the recognition that decision making within the community, the share of value, and observance of social norms approximate a friendly relationship among members, and satisfaction level, emotional support, and confidence among members approach politics that members can talk about their personal matters. It is noted in the research process that the symbolism of the cathedral community as a transnational circuit behavior occurs where collective culture and personal desires of Filipino immigrant women were combined with production of social capital. Filipino immigrant women's awareness of community and social capital appearing in the cathedral community show that not only residence, along with the cultural identity of Filipino immigrant women, but also collective social and cultural characteristics, such as 'family reunion' can not be overlooked. In particular, at this time when discussion and debate on the interculturalism over multiculturalism is heating up, communal spirit and social capital based on the ethnic identity are important in that they can be a crucial path to the cross-cultural interaction with our society, therefore, a study on the social capital of the ethnic community needs to be encouraged and extended to more diverse communities, to the space of the multilayered scale.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.4
• /
• pp.1721-1727
• /
• 2012

The purpose of this study was to identify the loneliness and spiritual needs of the elderly in a certain area. The participants in this study were over 65 years, 159 elderly who attended in senior classes in Seoul. The instruments used for this study were revised UCLA 'Loneliness scale' developed by Russell, Peplau & Cutrona (1980) and translated by Kim & Kim (1989) and 'Spiritual need scale' developed by Yong (2008). The collected data were analyzed using SPSS 15.0 program, t-test, ANOVA, Scheffe's test and Pearson's correlation coefficient. The score of loneliness was 2.02/4, spiritual need was 4.51/5. The relationship between loneliness and spiritual needs showed significant negative correlation. Loneliness of the elderly who do not attend a religious attendance was high and spiritual needs were low. Spiritual needs of the elderly who are women over 80 years and living with subsidy from the government were high. Spiritual nursing interventions are needed to reduce a feeling of loneliness among the elderly who experience high degree of loneliness.