Sung-Gwan Jung

Evaluation of Seasonal Landscape Images and Preference of Streetscapes - Focusing on Street of Prunus Species -

The purpose of this study is to create a landscape image that considers the selection of techniques that can enhance landscape reproduction in streetscape evaluation using 3 dimensional simulations and to evaluate ways to verify similarities and the psychological changes on the part of users by season. In the comparison of technique, the Low(apply normal map) technique was selected for the natural representation of trees in a near and middle view and the Plane technique was selected for the distant view. As the result of the verification, all indicators of physical similarity were evaluated over 4.50 points and most indicators of psychological similarity were found to have no difference except for indicators of `disordered orderly` and `dirty - clean`. According to the results of analyzing the landscape simulation by season, images of `bright`, `beautiful`, and `static`, etc., were evaluated high for the spring streetscape. The images of `open`, `refresh`, and `animate` appeared high in summer and images of `warm` and `dark` were found to be high in fall. On the other hand, all images were evaluated as low except for the `orderly` image. In the preference of streetscape by season, summer and spring were highly preferred at 5.01 and 4.98 with winter as the lowest at 3.48. As the results of the analysis of preference factor, the spring streetscape was found to be a major influence in preference by 0.540 in `aesthetics`. In the case of summer, `order` was found to be high at 0.417 while influences in preference included `variety` and `aesthetics` in fall and `variety`, `aesthetics`, and `order` in winter. A determination of suitable spatial planning using a comparative analysis of various city streets will be enabled through the methods of this study.

Estimation of Danger Zone by Soil Erosion Using RUSLE Model in Gyeongju National Park1

Chul-Hyun Choi, Ju-Han You, Sung-Gwan Jung 요 약 본 연구는 경주국립공원 전체 지구를 대상으로 토양침식에 대해 RUSLE 기법을 활용하여 잠재적 토양유실량과 침식위험 도를 파악함으로써 토양생태계의 지속적인 보전과 더불어 재해방지 계획 수립을 위한 기초 자료 제공에 그 목적이 있다. 연평균 토양침식량 분석 결과, 전체 지구의 평균 토양침식량은 5.7ton/ha/yr로 나타났으며, 지구별로 남산 지구가 7.6ton/ha/yr로 가장 높았고 서악 지구가 2.1ton/ha/yr로 가장 낮았다. 토양침식위험등급 지역은 1% 미만으로 분석되었으며, 구미산 지구와 화랑 지구는 심각한 지역이 없었다. 그러나 남산 지구는 심각한 지역이 다른 지구에 비해 높게 나타났으며, 금오봉 일대에 집중되어 있었다. 따라서 금오봉 일대를 보호하기 위해서는 적절한 복원 및 관리방안이 수립되어야 할 것이다. 경주국립공원의 토지피복형태는 대부분 산림지역으로 나타났으며, 평균 토양침식량이 3.7ton/ha/yr로 양호한 수준 인 것으로 확인되었다. 지형에 따른 토양침식량 분석 결과, 깊은 계곡이 단위면적 당 7.3ton/ha/yr로 나타났으며, 다음이 평탄곡지로 6.1ton/ha/yr로 분석되었다. 평탄지와 산정능선은 토양침식이 적게 발생되는 것으로 예측되었다. 향후, 국내 국립공원의 토양유실량을 분석한다면, 전체 국립공원의 토양생태계를 보전 및 복원할 수 있는 계획 수립에 도움이 될 것으로 기대된다. 주요어: 자연자원, 토양유실, 토지피복, 문화재

A Study on User Behavior and Satisfaction with Neighborhood Parks within Walking Distance with Consideration for Interior and Exterior Environments - Focusing on the Case Study Hwarang and Gwanum Park, Daegu -

Recently, having neighborhood parks within walking distance has grown in importance. The purpose of this study is to analyze the effect of user satisfaction with neighborhood parks within walking distance considering interior and exterior environments. To do so, a field survey and GIS were conducted to construct data which were then compared with result of the analysed environment. Finally, amultiple regression analysis was conducted to confirm impact on user satisfaction of environment. By summarizing the study results, it was found that users of Hwarang Park exhibited a high level of satisfaction with `park facilities` and `safety of park use`. In the case of Gwanum Park, users exhibited a high level of satisfaction with `green space` and `amount of shade`. On the contrary, two park users exhibited low levels of satisfaction with `facilities for children` and `various attractions` within the parks. The pedestrian environment of Hwarang Park was rated higher than Gwanum Park within the park service area. User satisfaction was also rated higher than for Gwanum Park. However, two park users exhibited low levels of satisfaction with `various attractions` within the pedestrian environment. From the result regression analysis of the total satisfaction factors, `environment of access route`, `park facilities` and `space for walking` positively influenced park use satisfaction. It was found that improvement of the pedestrian environment would be more effective than the improvement of the internal environment on Hwarang Park. This study investigated correlation with the access road environment as well as the interior environment of the parks. The results of this research will be used to improve accessibility and availability for neighborhood parks within walking distance.

Establishment and Application of Landscape Control Point Selection Method for Landscape Assessment of Urban Development Projects

This study furnishes basis data for plan foundation and proper valuation of view by presenting objective and concrete selection standards and ways of Landscape Control Point(LCP) on valuation of development projects. To sum up the results of study, it establishes the prospect, publicity and direction of view as a selection standard LCP on precedent studies. The prospect, which includes visual range, direction of view, geographical features, and visibility, sets up as a valuation basis picking out the available places which have alterations according to direction and distance in practice. In the case of publicity, to select the place as there presentative area where public activities often happen than others, thirteen evaluation indexes including administration facilities, educational facilities, commercial facilities and so on. And variation of landscape is set up as an assessment index to know how much the land has changed from the beginning to the end of development. To apply the selection standards to sample places, the preliminary LCP is founded by analyzing both the prospect and published; a series of courses for selecting the final LCP is founded by analyzing the preliminary LCP and variableness of landscape on a basic of placed which have many alterations of view. At last, in the case of a selection system for LCP, the preliminary LCP is founded by analyzing both the prospect and publicity; a series of courses for selecting the final LCP is found by analyzing the preliminary LCP and variableness of landscape. Applying selection standards and the assessment index to the Sam-deok 3 residence improvement area, in the case of prospect, the southern distant view area has the largest extent. Next, the results of the assessment using the system of publicity show that a five-lane road is taking up the largest area. Hence, a total of 48 preliminary LCPs are set up by analyzing both the prospect and publicity. The results of analyzing landscape variation, one of the valuation indexes, show that Sam-deok dong around the post office has the highest rate of variation at 28.07%. Finally, three LCPs in each part, which are close range, middle range and distance view, are selected; thus, a total of nine LCPs are selected. The selected LCPs that go through a series of practical courses like a GIS program have a lot of professional opinions and are expected to secure objectivity of landscape assessment.

A Study on the Improvement of Sincheon Waterfront using the ISA

The purpose of this study is to suggest an improvement plan for the waterfront by conducting an empirical analysis of users of the city`s waterfront. For this purpose, this study conducted a field investigation and questionnaire survey on the waterfront of Sincheon, Daegu Metropolitan City. Based on this, this study investigated the importance and satisfaction levels of environmental factors according to the purpose of using the waterfront and proposed the improvement plans through an ISA(Importance-Satisfaction Analysis). The analysis results are as follows. In the case of using the waterfront for exercise, `The division of bicycle trails and promenades` had the highest level of importance, while satisfaction level for items with `Convenience facilities such as vending machines, toilets and water fountains` was found to be the lowest. In the case of using the waterfront for leisure and relaxation, `Tree shade` had the highest level of importance, and the satisfaction level of the item on `Whether to hold events such as exhibitions` was lowest. The ISA results showed that when the waterfront was used for the purpose of exercise, leisure and relaxation, items such as `Convenience facilities such as vending machines, toilets and water fountains`, `Cleanliness of space and water quality` and `Water quality management` had a high level of importance, but had a low level of satisfaction, which suggests that they should be improved on a preferential basis. Next, items requiring intensive improvement for exercise purposes were `Tree shade`, `Rest facilities such as benches and pergolas`, `Width of bicycle trails and promenades` and `The division of bicycle trails and promenades`. Leisure and relaxation found that `Lighting facilities` require improvement. It is expected that if a river improvement project is implemented based on the above results, effective financial commitment and investment will be made.

The Effect of Neighborhood Environmental Perception on Park Use for Health Improvement - The Case of Suseong-gu in Daegu City -

The purpose of this study is to analyze the effect of neighborhood environmental perception on park use for health. The study area is focused on neighborhood parks in Suseong-gu, Daegu city. The analysis results are based on questionnaires of 303 respondents. According to the results, park use for health improvement was significantly associated with the perceptions of accessibility to a marketplace, availability of public transit, accessibility to the park, enough sidewalks, number of crosswalks, and athletic population. The probability of park use increased by 2.326 times as the satisfaction of accessibility to the park increased. Also, greater athletic population, fewer crosswalks, and more sidewalks lead to increase of park use by 1.701, 1.617, and 1.642 times, respectively. Therefore, it is important to increase the available neighborhood parks around residences and to develop exercise programs that people can use continuously in order to vitalize park use for health improvement. Also, it is necessary to improve the convenience of walking such as development of pedestrian streets or malls between residences and parks.