• KIEAE Journal
• /
• 제16권4호
• /
• pp.55-62
• /
• 2016

Purpose: Since the 19th century many concrete models and theories for the ideal city had been proposed and in some way had affected on the ideal urban plans in the 20th century. Modern cities in the 20th century faced a total chaos, due to the world war and new social paradigm came from the development of technology. These social context leads us to be interested in ideal city. And two planned cities; Chandigarh, India and Brasilia, Brasil, are meaningful as the result of the modern ideal city in the early 20th century even though they completed just in part. Method: This study is focused on the characteristics of the modern ideal city in the early 20th century based on comparison with two realized cities. There are similarities and differences in their background, concept, and the characteristics of form and space. Result: First, both cities are required to make monumental and symbolic images by political issues. For this, Le Corbusier proposed the grid system for a metaphorical city and L. Costa defined the urban form with abstract axis for a mythological city. Second, the administrative districts in both cities are planned as symbolic places by formative buildings and their hierarchical arrangement. For neighbourhood unit 'Sector' in Chandigarh and 'Superquadras' in Brasilia are used for the neighbourhood unit respectively. Third, the car-oriented road system and urban environment by population overcrowding in tow cities are criticized in common. Consequently, as we can see, the modern ideal city in the early 20th century succeeds in making symbolic urban image, but exposes the limitation of sustainability.

• 한국조경학회지
• /
• 제16권1호
• /
• pp.1-12
• /
• 1988

^x This study was executed to measure the user's psychological carrying capacity in the National Park Campsite in the district of Temple Ku- Ryong as a model of analysis, which is made socio - psychological approach. The results are as follows ; 1. Since this Place hart a beautiful scenery and some cultural assets prosperties and lies near the metroplitan area, 67.5% of the user come from the district, such as Seoul, Inchon, Kyong - Ki Do, and the purpose of camping is to appease their stress and to promote friendly relationship one another. 2. Since most of the campers(86%) didn't recognize the injury of the natural environment, the enlightment movement and the public information for the protection of natural environment are urgent. And they thought that the good campsite is located near the stream(43.6%) or a quiet place(33.4%). 3. As the space per a man increase, the degree of their satisfactions showed the tendency to increase. The user's satisfaction were analyzed by three statistic methods, correlation, multiple regression and factor analysis. Affecting factors to the user's psychology by the varimax varimax rotated factor analysis were classified physical arts ecological satisfaction. 4. The carrying capacity of the campsite by the degree of psychological satisfaction of the user was measured. The result was that the proper space for one user campsite was 35m$^2$ 5. The 58% of the informants said that they root disturbed by the overcrowding in the campsite. But most of the users thought that it was not good to control the number of the users. And the 67.3% of the respondents answered that the best method was that we control the number of the users by order of arrival if we have to control it.

• 한국지역지리학회지
• /
• 제15권5호
• /
• pp.525-536
• /
• 2009

급속한 경제성장의 시기에는 요소투입에 의한 성장정책과 성장의 지역적 분배에 기초한 지역개발정책이 가능하였다. 그러나 국가간 경쟁이 심화되고 불확실성의 증대로 성장의 원동력이 크게 약화된 시기에 이러한 모델은 이론적, 실용적 권위를 잃고 있다. 세계화된 경쟁적 환경과 불확실한 세계경제 변화에 신속하고 효율적으로 대처할 수 있는 내생적인 지역혁신역량 구축이 성장과 지역개발정책의 새로운 대안으로 등장하였다. 중앙집권적인 성장정책과 지역개발정책으로 수도권의 과밀화와 지방의 과소화 문제를 겪었던 프랑스는 지방의 내생적인 혁신역량 구축을 위해 지난 1970년대부터 단계적인 지역혁신체계 구축 정책을 실행해 오고 있다. 지방의 내생적인 혁신역량 구축을 위해 계획적인 지식창출과 지역개발을 동시에 추구해온 프랑스의 지역혁신체계의 구축 수단과 방식은 지역의 내생적인 혁신역량 강화와 지역간 불균형 문제를 해소하려는 정부의 정책에 많은 시사점을 제공한다.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2017년도 추계학술대회
• /
• pp.591-593
• /
• 2017

기후 변화 및 도시의 복잡화와 과밀화에 따라 기존 지역에만 국한되던 개별 재난이 자연재난에서 사회재난으로 연계되어 복합화되어 가고 있는 추세이다. 따라서 자연재난 및 사회재난이 연계되어 발생하는 복합재난을 사전에 대응하기 위한 복합재난 시뮬레이션 시스템이 필요하다. 본 논문에서는 자연재난과 사회재난이 연계성을 통해 복합재난으로 발생하는 경우에 대해 시뮬레이션 시스템을 소개하고, 복합재난 시뮬레이션 시스템을 구성하는데 있어서 핵심이 되는 통합 인벤토리에 구축 시 고려할 사항에 대해서 다룬다. 재난에 대한 시뮬레이션 결과값은 지역별 특성을 고려한 인벤토리의 구성에 따라 달라질 수 있으므로, 신뢰할 수 있는 복합재난 시뮬레이션을 위해서는 정형화되고 일관성 있는 인벤토리 구축이 방안이 요구된다.

• 한국응급구조학회지
• /
• 제25권2호
• /
• pp.145-156
• /
• 2021

Purpose: Despite the fact that emergency medical centers (ED) are used by emergency patients, more than 50% of non-emergency patients have been reported to be admitted in EDs, of which more than 10% of them used the 119 ambulance. Therefore, this study investigated whether there was a change in the severity of patients visiting EDs during the first year of the COVID-19 pandemic. Methods: This was a retrospective study of patients who visited the ED through the 119 ambulance in 2019 (13,735) and 2020 (11,015). Patient data were analyzed using the medical information system. Results: There was an increase in non-emergency patients at the emergency departments (KTAS levels 4-5) in 2020 with a rate of 58.0% (6,393), as compared to the 2019 data with a rate of 44.9% (6,169). However, the 2020 median length of stay in the emergency department was 188 minutes (IQR: 0-5,909minutes) (p=.000), which was decreased as compared to the 2019 median length of stay of 231 minutes (IQR: 5-6,211minutes) (p=.003). Conclusion: Providing emergency ambulance guidelines for selecting proper hospitals and educating patients to refrain from using the ED for non-emergency patients should be taken into consideration to prevent overcrowding and construct a more effective emergency medical system (EMS).

• 한국해양공학회지
• /
• 제35권6호
• /
• pp.414-425
• /
• 2021

Overcrowding of high-rise buildings in urban zones change the airflow pattern in the surrounding areas. This causes building wind, which adversely affects the wind environment. Building wind can generate more serious social damage under extreme weather conditions such as typhoons. In this study, to analyze the wind speed and wind speed ratio quantitatively, we installed five anemometers in Haeundae, where high-rise buildings are dense, and conducted on-site monitoring in the event of typhoon OMAIS to determine the characteristics of wind over skyscraper towers surround the other buildings. At point M-2, where the strongest wind speed was measured, the maximum average wind speed in 1 min was observed to be 28.99 m/s, which was 1.7 times stronger than that at the ocean observatory, of 17.0 m/s, at the same time. Furthermore, when the wind speed at the ocean observatory was 8.2 m/s, a strong wind speed of 24 m/s was blowing at point M-2, and the wind speed ratio compared to that at the ocean observatory was 2.92. It is judged that winds 2-3 times stronger than those at the surrounding areas can be induced under certain conditions due to the building wind effect. To verify the degree of wind speed, we introduced the Beaufort wind scale. The Beaufort numbers of wind speed data for the ocean observatory were mostly distributed from 2 to 6, and the maximum value was 8; however, for the observation point, values from 9 to 11 were observed. Through this study, it was possible to determine the characteristics of the wind environment in the area around high-rise buildings due to the building wind effect.

• International Journal of Internet, Broadcasting and Communication
• /
• 제14권1호
• /
• pp.85-94
• /
• 2022

Recently, consumers who prefer contactless consumption are increasing due to pandemic trends such as Corona 19. This is the driving force for developing the last mile-based logistics ecosystem centered on the online e-commerce market. Lastmile led to the continued development of the logistics industry, but increased the amount of cargo in urban area, and caused social problems such as overcrowding of logistics. The courier service in the logistics base area utilizes the process of visiting the delivery site directly because the courier must precede the loading work of the cargo in the truck for the delivery of the ordered product. Currently, it's carried out as automated logistics equipment such as conveyor belt in unloading or classification stage, but the automation system isn't applied, so the work efficiency is decreasing and the intensity of the courier worker's labor is increased. In particular, small-scale courier workers belonging to the sub-terminal unload at night at underdeveloped facilities outside the city center. Therefore, the productivity of the work is lowered and the risk of safety accidents is exposed, so robot-based loading technology is needed. In this paper, we have derived the top-level concept and requirements of robot-based loading system to increase the flexibility of logistics processing and to ensure the safety of courier drivers. We defined algorithms and motion concepts to increase the cargo loading efficiency of logistics sub-terminals through the requirements of end effector technology, which is important among concepts. Finally, the control technique was proposed to determine and position the load for design input development of the automatic conveyor system.

• 한국ITS학회 논문지
• /
• 제21권3호
• /
• pp.1-17
• /
• 2022

수도권 도시철도 혼잡으로 인해 다양한 문제가 발생되고 있어 도시철도 혼잡을 정확히 분석하는 연구 또한 해결방안 중 하나일 것이다. 현재 계수법, 중량검지법, CCTV, 모바일 Wi-Fi 등을 활용한 혼잡도 분석방법론은 결과의 정확성이 낮거나 단일 노선 및 열차에만 국한되는 한계점이 존재한다. 본 연구에서는 도시철도 승객의 다중경로 이용행태와 수도권 도시철도 열차운행계획을 반영한 열차 혼잡도 분석모형을 제시하였다. 특히 열차 용량 초과시 승객이 대기한 후 다음 열차에 탑승하는 통행패턴을 고려하여 열차 혼잡도 산정의 정확성을 제고하였다. 열차 혼잡도는 10분 단위로 갱신되어 시민에게 혼잡정보 제공이 가능하므로 사회적 편익증대에 기여할 것으로 기대된다.

• 한국시뮬레이션학회논문지
• /
• 제18권4호
• /
• pp.107-116
• /
• 2009

병원 응급실의 환자 과밀 현상이 점점 더 심해지고 있는 상황이다. 본 연구에서는 응급실의 치료 서비스 수준 및 시스템 효율을 개선하는 방안의 일환으로 간호사에게 치료 테스크를 할당하는 규칙을 개발하고자 한다. 제시하는 규칙에서는 매 치료 테스크 할당 시에 4개 속성 즉 1)태스크의 수행시간, 2)치료 요청 후의 흐른 시간, 3)모든 치료가 다 끝날 때까지의 총 남은 시간, 4)남은 치료단계의 개수를 동시에 고려한다. 각 치료 치료태스크의 기준별 긴급도를 계산하고, 기준별 중요도를 반영한 전체긴급도 값을 계산한 후 이 값이 가장 큰 태스크에 간호사를 할당한다. 컴퓨터 시뮬레이션을 통하여 M 병원 응급실의 간략화 모형을 대상으로 기존규칙과 비교실험을 수행하였다. 환자가 응급실에 머문 평균시간 및 단위시간 동안 처리한 환자 수를 평가기준으로 실험한 결과 제시한 규칙이 두 기준 모두에서 우수한 성능을 보였다.

• 문화기술의 융합
• /
• 제10권1호
• /
• pp.559-563
• /
• 2024

현재 우리나라는 도심지 과밀도로 구조물과 인접하여 대규모, 대심도 굴착시공이 이루어지고 있다. 도심지에서의 인접굴착공사는 흙막이 구조물 및 지하구조물의 안전성 확보가 매우 중요하다. 이에 자동화계측 시스템을 도입하여 지하철 터널 구조물에 대한 안전성을 관리하고 있다. 그러나 자동화계측 시스템 결과의 활용도는 매우 낮은 실정이다. 기존 평가기법은 측정된 데이터의 최댓값에만 의존하여, 이상 거동을 과대평가할 수 있는 기법이다. 이에 본 연구에서는 방대한 양의 자동화계측 데이터를 정량적으로 평가할 수 있는 기법인 가우시안 확률밀도함수 분석기법을 이용하여 분석하였다. 방대한 양의 데이터를 확률통계 분석비법을 적용하여 신뢰성 높은 결과를 도출하였다. 따라서 본 연구에서는 방대한 양의 데이터를 처리할 수 있는 기법을 이용하여 인접굴착공사에 따른 지하철 터널 구조물의 안전성 평가를 수행하였다.