• Title/Summary/Keyword: Traffic circulation

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A Study on the Changes and Influencing Factors fo Townscape in Korea since 1945 (解防後 韓國의 都市景觀 變遷 및 그 要因 硏究 - 서울을 중심으로 -)

  • 이경목
    • Journal of the Korean Institute of Landscape Architecture
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    • v.26 no.2
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    • pp.1-14
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    • 1998
  • The purpose of this study is to find out how the urban landscape of Korea, especially Seoul, changed during the last half century since 1945. The modernization of Korea, which had begun in 1960's after the chaotic period caused by Korean War, influenced the rapid growth of cities and the radical changes of its structures. But the Western-minded planning theories based on rationalism and positivism was directly applied in developing our traditional cities and consequently the modern urban landscape including urban pattern, architectural style, and commercial and residential landscape revealed disharmony, discrepancy and inconsistency in skylines, streetscape and so on. The findings are summarized as follows. 1. Because the urban structure and pattern changed in undesirable manner in terms of land use and traffic circulation, cities as a whole resulted in exclusive and heterogeneous landscape, and citizens lost their identity and felt alienated. 2. Because the architectural forms of important and monumental buildings which influenced the character of streetscape were not so successful in inventing contemporary Korean Style in true sense, we still have difficulty in creating the urban landscape of originality and legibility. 3. Because from the beginning of this era almost all highrise buildings were designed by modernism-oriented western architects, the commercial landscape of central cities did not evoke a sense of place, and after the introduction of postmodernism this tendency is ore striking even in everyday ordinary streetscape. 4. The newly formed residential landscape which was mainly composed of highly dense and highrise apartment, not only evolved very overwhelming and ugly visual impact but also exposed many social problems in living condition, neighboring and face-to-face contact. In conclusion, in ordr to define the 'Koreanness' of our urban landscape, we have to struggle to combine traditional architectural heritage and native townscape with Western shape, thought and theory, no matter how difficult it may be.

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Practical Use of Vegetated Porous Pavement for the Construction of Grass Parking Lot (잔디주차장 시공을 위한 잔디블록 활용방안)

  • Han, Seung-Ho;Kang, Jin-Hyoung;Choi, Joon-Soo;Yang, Geun-Mo;Yoon, Yong-Han;Ku, Tae-Ik;Kim, Won-Tae
    • Journal of Environmental Science International
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    • v.18 no.9
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    • pp.1011-1015
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    • 2009
  • The vegetated porous pavement can be installed as an alternative way to replace the traditional pavement, which contributes less to the water circulation system in the urban area. This study aims to an investigation based on the shadow and pressure of the vehicle system, where the turfgrass get grown and the green block get constructed on the grassy parking lot. This study might achieve these conclusions, in the case of use 'green block' makes grass parking lot, plant a kind of 'zenith' and takes sod thickness 40 mm are more efficient for turfgrass growth in the early times. In the case of parking over 8 hours in a day, after 5 weeks turfgrass growth would come into reduce. So over 4 hours parking and after 9 weeks, we need consider to setting up green block in grassy parking lot. The grassy ground would get pressured by the vehicles' load and it would bring into some damage due to the load after 3 weeks. So we should put the grass's growth root point under the designed a top of 'green block' level. When the vehicle amounts and parking density is in a low level, it could be an environmentally friendly product.

Anal breathing training and oriental medical study of the anal breathing (항문호흡 수련 및 항문호흡의 한의학적 고찰)

  • Song, Jeong-min;Kang, Han-joo;Kim, Jeong-hwan
    • Journal of Korean Medical Ki-Gong Academy
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    • v.11 no.1
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    • pp.262-283
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    • 2009
  • 1. Anus is one of the nine holes, a soul store and on the lungs and the lungs, so the soulgate is said to meet. In addition, weight 450g, length 14.31inch, horizontal, and the 2.74inch, hit the road, the lungs and the reaction of the colon was found to represent the five viscera were dirty. 2. Spirit directly to the anus of the five viscera and the traffic outside and pass the information where I can get, and a close relation to the breathing, and each groups' je-hang-suk-sin-gong, je-hang-gong, anal breathing, jwa-sik training, jung-gi-dan-beop, martial arts method, Kegel exercises, breathing training, such as the anus is the name. 3.Anal way of breathing while breathing naturally slow down when you inhale air, tighten the anus and rectum to release when you breathe out, give way (or vice versa), the number of 5-20, he'll make you build up gradually. 4.Associated with respiratory training in Oriental medicine perspective, it is a Mac gi-gyeong eight vessel. In addition, out of gi-gyeong eight vessel in breathing training and more closely related to the Conception Vessel, Governor Vessel. 5.Governor Vessel, Conception Vessel and connect the energy up, down, left and right to communicate is the so-ju-cheon. To complete the Governor Vessel instantly without the energy leak from the Mir-yeo(尾閭) to reach the anus should be breathing. 6.Start the Conception Vessel Through fare Vessel hoeǔm, hoeǔm important acupuncture point can be activated by itself does not have the muscle to the hoeǔm around the anus energy and blood breathing helps circulation.

Analysis characteristics of officers' watch-keeping for efficient navigation bridge layout of a fisheries training vessel (효율적인 어업실습선의 선교 layout을 위한 당직항해사의 업무특성 분석)

  • KIM, Min-Son;HWANG, Bo-Kyu
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.52 no.1
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    • pp.56-64
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    • 2016
  • This study analyzed characteristics of officers' watch-keeping during fishing operation at the fisheries training ship KAYA (GT: 1,737 tons, Pukyong National University). It observed fishing works of three officers in wheel house of KAYA. The observations were carried out at the fishing ground 45 miles away from east of Jeju from 7 to 8 January 2010. The works and movements of the officers were recorded with three common video cameras and a 4-channel MPEG-4 Triplex DVR. Recorded data of the working circulation was analyzed by using the post-processing method. As a result of the traffic lines, the average (${\pm}S.D$) of working hour (min) and moving frequency (times), distance (m) and speed (m/min) during setting the net was 11.8 (0.9), 43.7 (8.1), 133.9 (35.8) and 10.5 (0.6), respectively. During trawling the net, it was 100, 241 (39.8), 615.7 (194.6) and 5.2 (1.6), respectively. During hauling the net, it was 17.6 (1.4), 41.0 (7.2), 196.9 (37.6) and 10.7 (0.8), respectively. In addition, it has a different tendency of the instrument usage frequency by the fishing works. During setting, the usage priority was CCTV, ECDIS, RPM and pitch controller, net monitor, GPS plotter, chart room, X-band radar, fish finder and public addressor. During trawling, it was CCTV, ECDIS, fish finder, X-band radar, net monitor, chart room, GPS plotter, RPM and pitch controller, auto pilot and steering, interphone, wind speed and direction indicator, No.1. VHF, navigation light control panel and public addressor. During hauling, it was CCTV, RPM and pitch controller, GPS plotter, public addressor, chart room, net monitor, X-band radar, auto pilot and steering and fish finder.

A Review on GIS Research Trends in North Korea (북한의 GIS 연구동향 분석)

  • Kim, Chang-Hwan
    • Journal of the Korean Association of Geographic Information Studies
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    • v.10 no.4
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    • pp.189-197
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    • 2007
  • GIS is the tool widely used for the practical solution of spatial problems in every region regardless of the language and ideology. In this paper research trends and tendencies of GIS in North Korea are reviewed compared with those in South Korea. For this purpose, academic publications on GIS in North Korea are surveyed and classified according to main subjects in GIS. Such classification by main subjects of GIS in North Korea are conducted on the basis of the classification of research trends and tendencies of GIS in South Korea. As a result, researches in North Korea are mainly focused upon such fields as geodetic surveying and measurement, map manufacture, atmospheric phenomena, agriculture and disasters, while there are few studies related to such fields as national GIS policy and circulation, GIS education, internet-based GIS, and traffic, to name but a few. Most parts of applied data are based on low and medium resolution image such as meteorological satellite images, Landsat images, and so on. This reflects the low level of the development of GIS DB infrastructure in North Korea.

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Establishment of Design Factors and Procedure for Permeable Asphalt Pavements Structural Design (투수성 아스팔트 포장 구조설계를 위한 설계인자 도출 및 설계방법에 관한 연구)

  • Yoo, Hyun Woo;Oh, Jeongho;Jung, Young Wook;Han, Shin In
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.38 no.1
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    • pp.113-119
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    • 2018
  • An extensive effort is actively being made to implement permeable pavement systems in urban or residential areas of South Korea in order to achieve efficient water circulation system based on low impact development (LID) design concept. This study aims to establish the design factors and procedure for permeable asphalt pavements structural design. Based on the review of previous studies, the 1993 AASHTO design method is found to be adequate for permeable pavements structural design. In this study, the design program based on 1993 AASHTO design procedure in conjunction with domestic roadway design standards was developed to accommodate the characteristics of permeable asphalt pavements. Primary design parameters such as structural layer coefficients of permeable materials were successfully quantified based on literature reviews and parallel analyses. Comparable design thicknesses were obtained between the developed permeable pavement design (PPD) program and Korea pavement research program (KPRP) under different levels of traffic and subgrade load bearing capacity.

The Effect of Wave Pressure on Stability Rubble Mound Breakwater (사석식 경사방파제에 작용하는 파압이 제체 안정성에 미치는 영향)

  • Cheong, Gyu-Hyang;Lee, Yong-Dae;Lee, Byong-Moon;Jeong, Sam-Gi;Kim, Keun-Sup
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.03a
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    • pp.579-584
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    • 2009
  • Arrangement of the facilities for improving harbor functions depends on sea and land conditions such as the ship's arrival and departure conditions, waves and tide. And the plan and the size of the facilities depend much on harbor and marine environment condition such as cargo quantity, ship size, ship traffic and seawater circulation. Among these, waves have so much effect on a breakwater design that it is the most important to understand their characteristics and to apply them to breakwater design. Therefore, to analyze the effect of waves characteristics over a rubble mound breakwater, we have calculated wave pressure by using numerical analysis at each tide level and have analyzed the effect of wave pressure on structure stability by conducting the stability analysis with the wave pressure. As a result, it is found that during low and mean tide level time the biggest wave pressure is estimated near calm water level. But during high tide time, the biggest wave pressure is estimated in front of capping. And the stability analysis indicates also that a structure is most unstable when low tide time wave pressure is acting on. After reviewing the stability of a structure by applying vertical and horizon wave forces, it is concluded that safety factor is lower than ordinary time(max. about 15%), is also reviewed when designing a rubble mound breakwater.

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Influence of New Town Development on the Urban Heat Islands - ln the Case of Pan-Gyo Area and Bun-Dang New Town - (신도시 개발이 도시열섬 형성에 미치는 영향 - 분당신도시와 판교지역을 중심으로 -)

  • 송영배
    • Journal of the Korean Institute of Landscape Architecture
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    • v.30 no.4
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    • pp.37-46
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    • 2002
  • The main purpose of this research is to discuss the urban heat island which will be caused by urbanization, especially by the construction of new town on a wide green zone. Over the last ten years, five new towns have been developed around the Seoul metropolitan area. However these new towns become bedroom communities and create traffic problems between Seoul and its surrounding areas because of an increase in population and a lack of roads and other infrastructures. The construction of another such new town is under consideration in the Pan-gyo area. But it is important that Pan-gyo remains a wide green zone. Many studies show that green space can play an important role in improving urban eco-meteorological, ameliorative capability and air hygiene. The objective of this study is to analyze the urban heat islands of Bund-Dang Si which was constructed in 1996 and of the Pan-Gyo area planned as new town. To investigate the local thermal environment and its negative effects caused by change of the land use type and urbanization we used LANDSAT TM images for extraction of urban surface temperature according to change of land use over 15 years. These data were analyzed together with digital land use and topographic data. As a study result, we found that the thermal island of this area from 1985 to 1999 rapidly increased with a difference of mean temperature of more than 12'E. Before construction of Bun-Dang Si the temperature of this area was the same as the forest, but during the new town construction in 1991, an urban heat island developed. The temperature of forest with a size of over 50% of the investigation area was lowest, which leads us to conclude that the forest cools the urban and its surroundings. The mean temperature of the residential and commercial area is more than +4.5$^{\circ}C$ higher then forest, so this method of land use is the main factor increasing the urban heat island. Urban heat islands and green space play an important role in urban wind systems, i.e. Thermal Induced Air Exchange and Structural Wind Circulation, because of their special properties with regard to energy balance between constructed urban and land. The skill to allocate land use types in urban areas is a very important planning device to reduce air pollution and induce the fresh cold air from green space. An urban climatic experiment featuring a numerical wind simulation study to show the air corridor will be published in a following research paper.

A study on the characteristics of layout patterns of railway station square according to the characteristics of railway station (철도역 개발특성을 통한 역광장 배치유형 계획특성 연구)

  • Yang, Seung-Hee;Lee, Jeong-Soo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.3
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    • pp.571-581
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    • 2016
  • This study focused on the characteristics of railway station squares according to layout patterns, which provide transit and links between the station and town. The results were as follows: (1) The analysis examined the characteristics of the railway station to the location and types the proportion: civic center type (59.3%) and ground station (43.7%), and upper railroad station (40.6%). The spatial configurations of the railway station square were obtained: Traffic space and Environment space. (2) The railway station square space configurations was classified as 4 main layout types: Turn place type (PC), Circulation type (PI), Stop place type (PS-1), and Stop place type (PS-2) (3) The average size for each type of railway station square layout patterns of the Location was larger than the civic center type ($16,882.3m^2$) to suburbs type ($37,698.9m^2$). The average form for each type of a railway station square layout patterns of the Location was the civic center type (1.00:0.73) and suburb type (1.00:0.37).

A Study on the Effect of Accident-Proneness Prospect by Health Conditions in Children (유아의 건강도에 따른 사고경향예지도에 관한 연구)

  • 방주영
    • Korean Journal of Health Education and Promotion
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    • v.13 no.1
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    • pp.90-116
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    • 1996
  • The purpose of this study is to provide basic data for the children so as to avoid any accidents and to improve their health through a sound and safe living environment with safety education established through more systematic methods. For the study, the methods used include the questionnaires for collecting data which are distributed among 273 children from 3 to 6 years old. They live in three districts of Seoul (Kangnam and Kangbuk), Kyeonggido (Munsan and Ilsan) and Incheon. The children's general characteristics are investigated and the relationship between the accident-proneness prospects and their results are analyzed assuming that children's health is expected to have an effect on their safety. The findings of the study are as follows: 1. The accident-proneness prospect (for the living safety) has significant difference in sleeping habits and physically weak conditions(p<0.05). 2. The accident-proneness prospect (for the traffic safety) has no significant difference in accordance with the children's health condition. 3. Children's reasoning power has no significant difference in accordance with their health condition. 4. Children's movement speed non-significantly differs in accordance with their health condition. 5. Children's movement stability has a significant difference in accordance with their health conditions such as history of mild disease(p<0.05) and physical work capacity(p<0.05). 6. Children's attention power has no significant difference in accordance with their health condition. 7. Children's characteristic activities show a significant difference in accordance with their health history of mild disease(p<0.05). mental health(p<0.05). eating habits(p<0.05) and others (i.e. auditory abnormality and skin desease)(p<0.05). 8. General assessment of the APP test has no significant difference in accordance with their health condition. 9. The health conditions are a significant difference in the history of mild disease in accordance with sex(p<0.05) and whole family members(p<0.001). Also there are shown significant differences. in accordance with sex(p<0.05). in physical work capacity(p<0.05). Eye sight, blood circulation and skin condition show significant differences in accordance with residence(p<0.05) and whole family members(p<0.01). and the condition of eating habits appeared significant in accordance with age(p<0.05). Also, sleeping habits and physically weak conditions shows significant differences in accordance with age(p<0.001) and housing pattern(p<0.01), and others (i.e. auditory abnormality and skin desease) show significant differences in accordance with residence (p<0.001).

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