• Title/Summary/Keyword: sustainable design

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A Comparative Study on the Travel Behavior of Residents by Housing Types and Implication Deduction for TOD Implementation (TOD구현을 위한 주택유형별 거주자의 통행행태 비교 분석 및 시사점도출)

  • Lee, Kyu Jin;Park, Kwan Hwee;Choi, Keechoo
    • Journal of Korean Society of Transportation
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    • v.32 no.1
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    • pp.27-38
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    • 2014
  • Recently, urban and transportation planning for Transit Oriented Development(TOD) has become a major issue. For the effective policy implementation of TOD, it is important to understand the travel behavior of residents in housing areas. In this study, we compared the travel behaviors of residents by housing types based on 'the 2010 Household Travel Survey Data' focusing on metropolitan areas. By building an estimation model for subway trip frequency by housing types, it was identified that the factors influencing subway trips and ultimately suggested implications to increase the use of the subway. The highest share of bus mode was for detached house residents with 22.8%, whereas the share of subway mode was highest by efficiency apartment residents with 17.5%. Walking distance to the subway from efficiency apartment and row house were verified as 661meters and 749meters. As the residents of each housing type have more cars and bicycles, their subway trips were decreased. It was also found that subway trips were increased when the population density of residence was high with good accessibility to subway stations and poor accessibility to bus service. In this study, the statistical findings to differentiate the planning factors of public transportation by housing types were also provided. The results of this study would be used for urban design considering the travel behaviors of residents by housing types and can also be utilized for promoting the patronage of public transportation. Some limitations and a future research agenda have also been discussed.

Behaviour of One-Way Concrete Slabs Reinforced with Fiber Reinforced Polymer (FRP) Bars (FRP 보강근을 주근으로 사용한 일방향 콘크리트 슬래브의 거동)

  • Seo, Dae-Won;Han, Byum-Seok;Shin, Sung-Woo
    • Journal of the Korea Concrete Institute
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    • v.19 no.6
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    • pp.763-771
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    • 2007
  • Over the last few decades, many researches have been conducted in order to find solution to the problem of corrosion in steel reinforced concrete. As a result, methods such as the use of stainless steel bars, epoxy coatings, and concrete additives, etc., have been tried. While effective in some situations, such remedies may still be unable to completely eliminate the problems of steel corrosion. Fiber reinforced polymer (FRP) elements are appealing as reinforcement due to some material properties such as high tensile strength, low density, and noncorrosive. However, due to the generally lower modulus of elasticity of FRP in comparison with the steel and the linear behavior of FRP, certain aspects of the structural behavior of RC members reinforced with FRP may be substantially different from similar elements reinforced with steel reinforcement. This paper presents the flexural behavior of one-way concrete slabs reinforced with FRP bars. They were simply supported and tested in the laboratory under static loading conditions to investigate their crack pattern and width, deflections, strains and mode of failure. The experimental results shows that behavior of the FRP reinforced slabs was bilinearly elastic until failure. Also, the results show that the FRP overreinforced concrete beams in this study can be safe for design in terms of deformability.

Planning the New City Based on the Geomancy: A Case of the Design of the New Multi-functional Administrative City (NMAC) (경관풍수에 입각한 신도시의 개념적 설계 : 행정중심복합 예정도시를 사례로)

  • Seo, Tae-Yeol;Ock, Han-Suk
    • Journal of the Korean Geographical Society
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    • v.40 no.5 s.110
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    • pp.491-513
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    • 2005
  • The Republic of Korea is planning to build the now Multi-functional Administrative city (NMAC). The purpose of this paper is to suggest the conceptual framework for this new city that relies on the Korean geomancy, oriental viewpoint on man and nature relationship, particularly in Korea. According to the Geomancy which could conceptualize the human-environment relationship in the site, the overall landscape image of the city could be symbolized by two flying crane with three Taegueks. In transforming the overall landscape image to urban form, two diamonds which means eternity and strength arises from the western spatial viewpoint, as means to protect and harmonize the human, land and mountain relationship in this site and the symbolic meaning of this site as generative and sacred place in Korean people's mind. On the one hand, through juxtaposing of the two diamonds a geometric structure shows up, on the other hand the main axis of the city could be established from two crane and three Taegueks. On the North-South axis from the core of the symbolic green axis, symbolic things will be located, and the administrative offices will be Placed on the East-West axis. Peripherals of the central axis also play a role in developing overall land use from image. The buildings and residents could be arranged and located according to undulations and this is based on the oriental theory of geomancy. We can build cultural amenities on the head part of the crane and on the core area.

Analysis of Delay Factors Based on Importance of Construction Subject-classified in Apartment Finishing Works (공동주택 마감공사 공사주체별 작업지연 요인 분석)

  • Lee, Seung-Hoon;Kim, Yong-Man;Kim, Ju-Hyung;Kim, Jae-Junn
    • Journal of the Korea Institute of Building Construction
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    • v.11 no.1
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    • pp.73-81
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    • 2011
  • The ultimate goal of construction is to complete the given work in the most economical and safest way within the required construction period while meeting the quality standards specified in the design drawing. There are a few characteristics of finish work. First, executed in subdivided processes, finish work involves a very diverse and complex structure. Second, there are no criteria for each segmented process with regard to the appropriate time of input. Third, it is not very necessary to set priorities for lead and lag works. This study intends to provide information on the completion of a project in accordance with the required duration by setting priorities in the delay of each detailed process of finish work to minimize delay in finish work. In this study, finish work is divided into wet work and other types of finish work, and the importance of each process is classified based on the given details of each process. In addition, the study employs a survey to analyze delay factors of a designer, a constructor, and a supplier. Using the survey results, the study sets priorities in delay of final work to provide information on the completion of an apartment project within the planned construction period.

Development and Application of Index Framework to Assess Cost-effectiveness of Payments for Forest Ecosystem Services in Korea (산림생태계서비스지불제의 비용효과성 평가를 위한 지수체계 개발 및 적용)

  • Ahn, SoEun;Rho, Paikho
    • Journal of Korean Society of Forest Science
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    • v.105 no.3
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    • pp.377-390
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    • 2016
  • The aim of this study is 1) to design an auction-type and area-based payments for ecosystem services (PES) in application to private forest in Korea, 2) to develop the framework of index to implement the PES program proposed, and 3) to examine the feasibility and validity of the index framework by conducting a case study. The index framework measures quantities of ecosystem services currently supplied, improvement of ecosystem services anticipated from the proposed management activities, and real implementing costs of the program. The total scores from the case study vary from 301 to 501 for site 1, Goesan-gun and 273 to 460 for site 2, Pyeongchang-gun, respectively, indicating that total index score - measurement of cost-effectiveness - can be varied by the levels of management and real cost even if the scores from ecosystem service indicator group are the same. The index framework which can locate a cost-effective program has significant policy implication given the budget constraints in biodiversity/ecosystem services policy arena.

Establishment of Preservative Green Spaces and Potential Focus Areas by the Green Infrastructure Assessment of the City of Daejeon (녹지기반성 분석에 의한 보전녹지와 중점관리지역 설정에 관한 연구 - 대전광역시를 대상으로 -)

  • Lee, Shi-Young;Shim, Joon-Young;Jang, Min;Heo, Jun
    • Journal of the Korean Institute of Landscape Architecture
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    • v.36 no.4
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    • pp.65-73
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    • 2008
  • Due to the amendment of the Act for Urban Parks in 2005, local governments have to establish long-range plans for securing and managing urban parks and green areas. This study aims to propose a method of setting priorities for green areas of land to be preserved before the development stage through the introduction of the concept of Green Infrastructure Assessment, and provide basic data to establish the network of urban parks and green areas by applying the GIA method to the city of Daejeon. The concept of GIA and the process of analysis have been drawn as a result of literature research and case studies. The results of this study show that an introduction of the GIA concept to set park and open space planning promotes the connection of the city planning process as well as presents very a reasonable source to facilitate sustainable development. Also, other results present a priority ranking for protection of parks and green areas as well as a means to manage potential focus areas. This study, does have research limitations such as a limited study area, scale, and conflicts between domestic and foreign computing data. Further studies need to set the planning process and examine the index survey to apply this method to various situations and areas.

A Study on the Factors of Satisfaction & WOM Regarding to Financial Institutions Internet and Smartphones Application On-line Usage of Financial Customers (금융소비자의 인터넷, 스마트폰 어플리케이션 등 금융기관 온라인 시스템 이용에 따른 만족과 구전에 미치는 효과 요인 연구)

  • Jeon, Seong-Ki;Kwon, Man-Woo;Lee, Sang-Ho
    • Journal of the Korea Convergence Society
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    • v.11 no.8
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    • pp.183-194
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    • 2020
  • Recently, in Korea, financial institutions such as banks are most severely affected by the universalization of the Internet and smartphones. On the other hand, the use of online systems by financial institutions keeps increasing; the convenience of online services has a significant influence on the attraction and the retention of financial customers; consumer needs are also diversely expressed. This paper deduces from the precedent researches a mechanism that online financial system enhances the trust of customers -the medium of the online system and other customers- and its perceived easiness affects its perceived effectiveness and then all these internal variables induce satisfaction. Plus, this paper aims at verification of the hypothesis in terms of an extended technology acceptance model, based on the hypothesis that word of mouth and repurchase are significantly linked to this mechanism. Through this study, the researchers tried to check how the online service quality and emotional factors of financial institutions affect the users in accordance with the trend of changes in the service usage method of financial institutions, and confirmed that the hypothesis was not rejected.

A Research on the Japanese Three-Dimensional Road System for Three-Dimensional Development of Road Space (도로 공간의 입체적 개발을 위한 일본 입체도로제도에 관한 분석)

  • Baek, Seung-Kwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.11
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    • pp.309-316
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    • 2020
  • This study analyzed Japan's three-dimensional road system as part of a study on urban regeneration plans through the three-dimensional use of road space. The three-dimensional road system integrates the Road Act, Urban Planning Act, and the Building Standard Act. The advantage of the three-dimensional road system is that landowners can freely use the space above and below the road so that they can live and operate sustainably, and road managers have the advantage of reducing the land acquisition costs because they only acquire rights to the road. In terms of type, it is applied to a variety of integrated and separated structures in elevated roads, underpasses, free passages, parking lots, and monorails. In addition, in the case of development methods, the degree of freedom of development plans is improved by enabling integrated maintenance of roads and buildings. Management stability is improved by applying management and law-based authority according to the Road Act. In this way, the three-dimensional road system provides support to maximize the use of limited available land through the three-dimensional use of road space, and to develop sustainable and good urban areas in development areas.

Case on Brand Management of the Fashion Brand EXR (패션 브랜드 EXR의 브랜드 매니지먼트 사례)

  • Min, Bok-Ki;Lee, Hye-Joo;Kim, Mi-Hyun
    • The Journal of the Korea Contents Association
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    • v.10 no.7
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    • pp.220-232
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    • 2010
  • Companies have been difficult to capture the minds of consumers by staying in the sales phase in order to sell products. The marketing and brand management strategies of more understanding consumers and systematically managing for the perception of them are becoming important. Since launched, EXR has implemented a systematic brand management process from its early stage. Based on the idea of 'brand asset by customer' by Kevin Lane Keller that the total of consumer brand knowledge ultimately completes the company brand power, 'brand asset', to satisfy areas of 'functionality' and 'design', EXR pioneered its ultimate brand asset which is 'CAPORTS' and established its own identity called, 'PROGRESSIVE'. For the success of a brand management, there must be a clear vision supported by the determination of a specific brand identity. Also, it needs to be shared by members of the organization, and to maintain and manage it in the long run, an integrated management strategy is essential. On the basis of such identity, EXR was able to carry out the integrated management for its brand and the overall implementation of the marketing strategy. Therefore, In this study, we seek for a sustainable brand management strategy of fashion brand by looking into the process of the EXR's brand establishment.

Effects of Hilly Pasture Types on Performances and Nutrient Availability in Breeding Korean Black Goats (산지 초지 유형이 번식 흑염소의 생산성 및 영양소 이용율에 미치는 영향)

  • HwangBo, Soon;Choi, Sun-Ho;Kim, Sang-Woo;Kim, Young-Keun;Sang, Byung-Don;Kwon, Doo-Jung;Jo, Ik-Hwan;Choi, Jae-Gook
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.27 no.1
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    • pp.57-66
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    • 2007
  • This study was conducted not only to evaluate the feed value for forests and organically produced-agricultural byproducts, but also to determine effects of different hilly pasture types on feed intake, nutrient digestibility and nitrogen retention in Korean black goats. Forty black goats were employed in the feeding trial and they were separated into four treatments (forages grown in chemical fertilizer, organic forages, native plants and browses) with 10 goats for each treatment. Furthermore, 12 goats, for nutrient digestibility trial, were allotted to few treatments of three goats per treatment with a randomized complete block design. Total body weight gain and average daily gain were significantly (p<0.05) decreased in the order of forages grown in chemical fertilizer, organic forages, native plants and browses throughout the trial. Dry matter intake (DM), digestible DMI, DM digestibility and nitrogen retention were highest in forages treatment grown in chemical fertilizer (p<0.05). From the above results, Organic Korean black goats fed forest byproducts as forage source and domestic organically produced-agricultural byproducts as supplemental diets were somewhat lowered in their performance. However, it showed high stability in the sustainable farming of organic Korean black goats. As the result, the consumption of organic Korean black goats might be more desirable for medicinal use rather than fur meat as a table food. The way to increase the low performance of organic Korean black goats for supplemental diets might be the additional supply of lacking nutrients for supplemental diets