• Title/Summary/Keyword: Visual Landscape Evaluation

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Evaluating the Visual Contrast Rating of the Landscape Impact Factors - A case study for the Buildings in Natural Landscape - (경관영향 요소별 경관 대비성 평가 - 자연경관에 도입되는 건축물을 중심으로 -)

  • Choi, Won-Bin;Shin, Ji-Hoon
    • Journal of Korean Society of Rural Planning
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    • v.24 no.3
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    • pp.87-96
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    • 2018
  • While cities became bigger and bigger since 1990s, many indiscretely high buildings started to be built in the mountain areas inside a city and in the rural areas in the suburb of each city. To regulate such indiscrete developments, the government prepared for some relevant legal and institutional criteria by having enacted the "Landscape Act" and established a strong management means in the legal and institutional aspects by having introduced the natural landscape deliberation system and the landscape deliberation one into the "Natural Environment Conservation Act." However, since some uniform levels of absolute height and no. of stories are suggested legally and institutionally, it is hard to consider the effects of a real building structure onto the relevant landscape. Accordingly, this thesis is intended to grasp the contrast of the landscape elements in the allowable height section, which is presented through landscape sensitivity. As the results from the visual contrast rating on a small apartment complex located in Dangjin and a large scale of apartment complex in Seosan as the apartment complexes surrounded with natural landscapes that were selected as the subjects of this study, the following conclusion can be finalized. First, there were deducted some factors, that is, forms, lines, colors, textures and sizes as the ones with which can measure and evaluate the contrasting properties when a structure gets into a natural landscape. Second, in case of a small scale of apartment complex (in the foreground) compared to a large one (in the foreground), it was found that the contrasting properties were bigger. In addition, it was also found that the contrasting property of the landscape factor of the foreground compared to that of the middle one becomes bigger depending on a distance. Third, as the results from an evaluation on the contrasting properties of the landscape factor depending on the changes of each floor of a structure, it was found that the factors, that is, forms, lines, colors, textures and sizes are very significant. Among those factors, the factors, forms and lines in a small scale of apartment complex (in the foreground) showed each log regression. But in all of the other cases, they showed each line regression. Fourth, as the results from examining the regression coefficients of the landscape factor, the coefficients of the shapes and lines have similar coefficients and the colors and the textures have similar ones, too. In case of the sizes of apartment complexes, the colors and the textures of a large apartment complex (in the foreground) have similar coefficients, in case of that in the middle ground, the shapes and lines have similar coefficients. Fifth, as the results from estimating the contrasting properties of the landscape factor on the floors within the allowed scope of the landscape sensitivity, it was found that the contrasting property was 3.5 to 4.9 in case of a small scale of apartment complex (in the foreground), but 2.5to 3.7 in case of a small scale of one. In case of a large scale of apartment complex, the value was 3.5 to 5.3, but in case of a large one in the middle ground was 2.9 to 4.9. Sixth, it was comprehended that the contrasting properties of the landscape factor become different depending on each size of apartment complex and the distance of a view point. In this study, it is intended to find the meaning from the aspect that the results can be used as the baseline data for comprehending a proper range of heights of structures objectively during a natural landscape deliberation or a landscape deliberation.

An ANOVA Evaluation on the Visual Cognition of Advertisement Signboards on the Buildings

  • Hwang, Jee-Wook;Go, Sun-Young;Lee, Moon-Kyu;Park, Joon-Soo
    • Journal of Environmental Science International
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    • v.16 no.11
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    • pp.1209-1218
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    • 2007
  • Advertisement signboards on the buildings have functionally a visual value as factor of urban and building design. But it is not easy to find any reasonable principles and regulations, how well the signboards deliver the information of stores to the customers, and how they contribute the visual amenity from the sight of urban landscape. Under this context, this study tries to analyze the information delivery power of signboards in relation to the visual cognition. The analysis method is the Two-Way ANOVA (Analysis of Variance) evaluation with factors, such as scale, amount and arrangement of signboards. The scale of letters or figures at Signboards is specified in 3 different sizes such as big, medium and small. The amount is classified into 5 grades from 100% to 20% installation. And the arrangement is divided into orderly and disorderly installation. As the results of the Two-Way ANOVA, the identical scale of signboards is much better for the awareness. And the orderly arrangement shows also the same result. Above all, including these two results, the 80% of installation showed the biggest different result of awareness.

Quantitative Analysis of Landscape in Tokyusan National Park (덕유산 국립공원 경관에 대한 계량적 분석)

  • 김세천
    • Korean Journal of Environment and Ecology
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    • v.7 no.2
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    • pp.231-240
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    • 1994
  • The purpose of this study is to suggest the objective basic data for applying to development and conservation management of the national park through the quantitative analysis of the visual quality included in the and physical environment of the Tokyusan National Park. For this, spatial images and structures, of natural elements have been analyzed by factor analysis algorithm, and degree of visual quality has been measured mainly through questionnaries. Result of this study can be summarized as follows. Factors covering the spatial image of the Tokyusan National Park landscape have been found to be the overall synthetic evaluation, appeal, spatial, natural quality and dignity factors such as the overall synthetic evaluation, spatial and appeal yield high factor scores. The main factors determining the degree of visual quality are the clearness valley, peculiarity of configuration, natural of trail, harmony of suitable artificial planting and temple.

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A Study on the Image Characteristics of Visual Perception in Bukchon-streetscape - Focusing on the Samchung-dong 35, Gahoe-dong 31, Gahoe-dong 11 - (서울북촌 가로경관의 시각적 이미지 특성에 관한 연구 - 삼청동 35번지, 가회동 31, 11번지를 중심으로 -)

  • Kim, Dong-Chan;Kim, Shin-Won;Kim, Mi-Rae
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.30 no.2
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    • pp.110-118
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    • 2012
  • This study aimed to research theoretical reviews of streetscape and to analysis the correlation between visual properties and preference of streetscape in Bukchon around Gahoe-dong which is a dense Hanok area. Therefore we analyzed a relation between visual quantities and preference intended Samcheong-dong 35 street, Gahoe-dong 31 street and Gahoe-dong 11 street the representative streetscape in Bukchon. Also we extracted common factors of images of the streetscape in Bukchon and figured out a relation between the visual image evaluation and the preference by regression analysis. The result of the analysis is as follows. First, it was the streetscape of Gahoe-dong 31 street which get more scores than any other streetscape in preference. And we figured out that the higher the ceiling and the visual quantities of planting the more preference. Second, streetscape in Bukchon was explained by 'aesthetics', 'amenity' and 'orderliness' in psychological view. And there was noticeable difference in aesthetics aspect between Gahoe-dong 31 street the highest preferred place and the Samcheong-dong 35 street the lowest preferred place. Third, as a result of regression analysis on preference and factor scores about psychological variables, we figured out that the factor which explains aesthetics effects most on the preference.

Development and Application of an Evaluation Model for Biotope Appraisal as Related to Nature Experiences and Recreation (비오톱의 자연체험 및 휴양가치 평가모형 개발과 적용)

  • Cho, Hyun-Ju;Lee, Hyun-Taek;SaGong, Jung-Hee;Ra, Jung-Hwa
    • Journal of the Korean Institute of Landscape Architecture
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    • v.38 no.4
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    • pp.11-24
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    • 2010
  • The main focus of this research is the establishment of a systemic evaluation model based on objective evaluation indices, which are drawn to assess the experiencing of nature and recreational value at the level of the district unit. First of all, as a result of a literature review, a total of 10 indices can be drawn including vegetation structure, pavement rate, and hemeroby to evaluate an assessment of natural experiences and recreational value. Also, as a result of expert survey analysis, all evaluation index items were above 4.4, which is a high importance average. Hemeroby and unique landscape factor items in particular were above 5.8, which is very high. In addition, as a result of implementing a factor analysis to classify evaluation indices according to characteristics, three factors arise: 'landscape structure and quality of natural experience', 'typical availability', and 'quality of aesthetic and visual sense.' Based on the above survey analysis results, the 'quality of aesthetic and visual sense' was the highest, at 3.510. The classification 'landscape structure and quality of natural experience' was the lowest, at 3.035. A systemic value evaluation model was established by comprehensively analyzing these results. To verify the validity of the evaluation model drawn, real sites are selected and applied. First of all, as a result of a biotope types classification of sites, biotope type groups are classified into a total of 13 including the stream biotope while its subordinate biotope types are classified into a total of 61 groups. Lastly, as a result of biotope value evaluation, which was a previously established evaluation model, there are a total of 16 types including vegetation-abundant natural rivers and small-scale woodlands near forests in grade I. There are 9 types in grade II, 8 in grade III, 8 in grade IV, 19 in the least-valuable grade V.

A Development and Application of the Landscape Evaluation Model Based on the Biotope Classification (비오톱 유형분류를 기반으로 한 경관평가 모형개발 및 적용)

  • Park, Cheon-Jin;Ra, Jung-Hwa;Cho, Hyun-Ju;Kim, Jin-Hyo;Kwon, Oh-Sung
    • Journal of the Korean Institute of Landscape Architecture
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    • v.40 no.4
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    • pp.114-126
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    • 2012
  • The purpose of this study is to find ways of the view evaluation of biotope classification before development by selecting an area, which is as large as about $10.0km^2$ around Non Gong Up, Auk Po Myun, Dalsung Gun, Daugu where the large project has been planned, as a subject of this study. The results of this study are as follows. Because of the classification of biotope, there are 23 kinds of types that are subdivided into 140 types. Three surveys for selecting the assessment indicators were performed. The first survey analyzed the importance of 22 selected assessment indicators based on the evaluation of an existing literature review and on the spot research. The second survey performed factor analysis and reclassified the value indicators. The third survey computed additive values of the selected assessment indicators. It used a method of standardizing the average importance of indicators by making their sum equal by 10. Theses additive values were then multiplied by each grade of indicators in order to make a final evaluation. The number of assessment indicators finally selected through the survey of asking specialist is vitality elements, visual obstructs elements etc 19. According to the result of evaluation of 1st, 1 grade spaces which especially valuable is analyzed that 7 spaces, 2 grade spaces for 4, 3 grade spaces for 5, 4 grade space for 2, 5 grade space for 5. Because of the evaluation of 2st, 1 grade spaces which especially valuable(1a, 1b) is analyzed that 15 spaces, 2 grade spaces which valuable is analyzed that 28 space. As the evaluation of site suitability model of this study couldn't have high applicability to other similar area because of having only one site as a subject, it is needed to do synthesize and standardization of various examples to have higher objectivity later.

A Study on the Estimation of Naturalness and the Preference in Greenary Space (녹지공간의 자연성과 선호성 분석에 관한 연구)

  • Kim, kwang-Rai;Huh, Joon;Roh, Jae-Hyun
    • Journal of the Korean Institute of Landscape Architecture
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    • v.20 no.4
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    • pp.26-38
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    • 1993
  • The purpose of this study was to suggest objective basic data for landscape research which cotained interdiciplinary approach between ecological and psychophysical method. For this, the naturalness and preference in greenary space, spatial image structure of physical elements have been analyzed by correlation coefficient and factor analysis algorithm. The results are as follows; 1. The relation between the estimation of naturalness and the preference in natural forest was deeply correlated. And the estimation of naturalness was higher than the estimation of DGN(Degree of Green Naturality). 2. The estimation of naturalnesss was decided by the physical features of forest and was different from the DGN. 3. Factors covering the spatial image of the forests have been found to be the 'overall evaluation', 'ability', 'naturalness' and 'idiosyncracy'. By using the control method for the number of factors, T.V. has been obtained as 61.68%. 4. The factors of the 'overall evauation', 'naturalness' were found to be the main factors determining the visual preference of greenary space.

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Elicitation and Evaluation of Landscape Components for Vitalization of Rural Tourism -Centered on Rural Tourist Attractions of China- (농촌관광활성화를 위한 경관요소 도출 및 평가 -중국 농촌관광지를 대상으로-)

  • Sun, Chang Juan;Kim, Jong Gu
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.36 no.5
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    • pp.937-945
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    • 2016
  • Recently, Rural tourism in China is developing rapidly, however, the rural tourism remains unsatisfactory due to ignoring the landscape aspect which is considered as an integral part for rural tourism. Therefore, we aim to investigate the effect of the landscape elements on vitalization of rural tourism by evaluation of the landscape elements. To this end, we made a questionnaire survery concerning importance and satisfaction of landscape elements through factor analysis, and clamp IPA analysis. As the result, 1) Regional product, safety facilities and public parking lots are the primary considerations as primary factor. 2)Traffic facilities and accommodation should reflect regional characteristics; Garbage collection facility, food and beverage facilities, network and electricity facility should be rectified and maintained; Regaining the original nature characteristics of river and lake, Securing the integrity of the visual appreciation by shelter landscape for Sewage Purification. Our study results may provide a basic reference for the development and management of rural tourism attractions in China.

Analysis on Visual Preference of Bridge Landscapes of View Point Selection and Bridge Shape for Improvement of the Rural Landscape - A Case Study of the 'Baegya Bridge of Yeosu City in Jeollanam-do' (농어촌경관 향상을 위한 교량경관의 조망점 및 형태에 관한 경관선호도 분석 -전라남도 여수시 백야대교를 대상으로-)

  • Chun, Hyun-Jin;Lee, June;Jiang, Long;Kim, Sung-Kyun
    • Journal of Korean Society of Rural Planning
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    • v.18 no.3
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    • pp.57-65
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    • 2012
  • This research is focus on the analysis of bridge image and preference. In this study, 3 types of bridge with arch bridge, cable stayed bridge, and suspension bridge, 4 prospect points named A, B, C, and D will be simulated in one scene for final analysis of bridge image and preference.On prospect point A, higher evaluation is received among the arch bridge. In addition, for cable stayed bridge and suspension bridge, the Higher evaluation is received among the most at the arch bridge on prospect point B. At the on prospect point C, higher evaluation is received among the most cable stayed bridge and suspension bridge compared with arch bridge. At the on prospect point D, lower evaluation is received among the cable stayed bridge and suspension bridge compared with arch bridge. The highest average total preference is received for cable stayed bridge. And, The lowest average total preference is received for arch bridge. Cable stayed bridge is suitable for the Baegya Bridge than arch bridge in the Landscape point. In conclusion, the preference for one bridge is not the same at different prospect points through above research.

A Study on Inventory and Grade Evaluation of the Visual Landscape Resource in Mt. Chiak National Park (치악산국립공원의 시각적 경관자원 인벤토리 구축 및 등급평가에 관한 연구)

  • Lee, Sook-Hyang
    • Journal of the Korean Institute of Landscape Architecture
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    • v.44 no.4
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    • pp.57-65
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    • 2016
  • This study was conducted a visual landscape resources inventory and grade assessment on natural resources and cultural resources of Chiaksan National Park. Landscapes of National Parks are categorized into four types: seascape, mountain landscape, village landscape, and temple historical landscape. Landscape lists were constructed for each district for a total of 120 lists through field research on 7 trails. The landscape list per trail has Guryong~Birobong(31%), Seungnam~Namdaebong(22%), Geumdae~Namdaebong(16%), Bugok~Hanenggu(165), Hwanggol~Ipseoksa(6%), Hyangrobong~Nandaebong(5%) and Godeunjae~Wontonggol(4%). Landscape Assessment items were divided into five characteristics of view, unique, use, history culture, natural reflected by item. Items were divided into three grades of landscape by 4, 3, 2, 1 for each item of the assessment criteria and Delphi survey. Mountain landscapes were assessed in I grade of 72 sites, II grade of 26 sites, III grade of 7 sites. Temple Historical landscapes were assessed in I grade of 4 sites, II grade of 7 sites, III grade of 4 sites. The study results can be used as a basis for mountain parks management. It is necessary to focus on managing the landscape of I grade site. The higher ratings of the Mountain landscapes are related to the view and natural score. Also, the grading of Temple Historical landscapes is related to the history cultural, natural and use score. In addition, the mountain landscape were identified as being included outside landscape resources, the place of landscape resources with outside ratings were higher and the view was related. Landscape management is needed for the conservation of Mountain landscape and Temple Historical landscape type rating as excellent areas on the basis of the results of the inventory and assessment. For future improvement the Guryong-Birobong trail is judged as a harmonious representative landscape of the Mountain and Temple Historical landscape and will require conservation as a focus management area. In the case of Mountain landscape improvements, maintenance such as pruning trees, wood observatory and interpretation sign for a landscape with minimal inhibitory landscaping is needed. When installing artificial facilities in the Temple Historical landscapes, the use of materials harmonizing with the surroundings landscape must be considered as well as the standards of facilities limitation.