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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
LHI Journal of Land, Housing, and Urban Affairs
Journal Basic Information
Journal DOI :
Land and Housing Institute
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Volume & Issues
Volume 3, Issue 4 - Oct 2012
Volume 3, Issue 3 - Jul 2012
Volume 3, Issue 2 - Apr 2012
Volume 3, Issue 1 - Jan 2012
Selecting the target year
Construction of Total Information Portal Service for Korea Urban Regeneration
Yang, Dong-Suk ; Yu, Yeong-Hwa ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 203~212
DOI : 10.5804/LHIJ.2012.3.3.203
In this study, the total information portal service for urban regeneration was constructed to supply comprehensive information for Korean urban regeneration. The portal service is largely divided into an information analysis service for urban regeneration and an information disclosure service. For total information portal service, the information analysis service constructed a system for making district level decline diagnosis and city and county level potential analysis. Moreover, it can construct and control analyzed information specified at the district level. The information disclosure service consists of functions capable of recycling information, interworking the analysis service and facilitating expert participation. It also supplies data of total information DB in reprocessable format. For revitalization of communities, the information analysis service is constructed to lead experts on urban regeneration to share their opinions.
Effect of Professional Competence of Public Institutions on Service Quality: Focused on Housing Welfare Service
Park, Kun-Suk ; Lee, Seok-Je ; Kim, Jong-Lim ; Lee, Hyun-Jeong ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 213~223
DOI : 10.5804/LHIJ.2012.3.3.213
As the public sector has been facing many challenges arising from the global economy and experiencing major changes, public services are redefined and various modes to improve their quality are applied to the customer service area. This research addresses whether and to what degree the professional competence of public institutions affect the customer service, in particular the quality and delivery of housing welfare services. With the institutional competences consisting of three elements - customer centric culture of service delivery, information sharing, and service delivery channels, this study utilizes a questionnaire survey, and the collected data are analyzed by using the inferential statistics. The findings show that customer centric culture of service delivery and information sharing have positive impacts on the quality of housing welfare services while service delivery channels don`t have any influence on it. The research results imply that the institutional competence in the public sector is critical in the quality and delivery of the housing welfare services.
Comparative Analysis on National Housing Survey of Six Countries: Policy Implications and Recommendation for Korean Housing Survey
Jin, Mee-Youn ; Kim, Jong-Lim ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 225~240
DOI : 10.5804/LHIJ.2012.3.3.225
The aim of this study is to discuss ways to improve Korea`s housing survey by comparatively analyzing the housing surveys being carried out in six other countries. The subject countries are the United States, the United Kingdom, France, the Netherlands, Australia, and Japan-the countries that conducts large-scale surveys for more than 20,000 households on a national level and where data collection is easily available. The comparative analysis items include survey history, purpose, subject, project owner, survey item, data collection method, and the use of survey outcome. The comparative analysis results showed that each of the six countries are conducting national housing condition surveys on a regular basis considering each nation`s characteristics of housing stock and policy goals, and the survey results are being used as the basis for setting policy guidelines including the selection of policy targets and the determination of appropriate rent standards, and the basis for housing assistance budget planning. Korea`s housing survey has been conducted three times up until now since 2006. There should be efforts to systemize and standardize the survey components, establish standards for monitoring the changing trend of national housing stock, standards for determining policy targets, and measures to open data and provide feedback considering the preceding studies of overseas countries in order to better utilize the housing survey data for policy development.
A Study on Estimating the Land Developer`s Share of Infrastructure Cost : Focused on the Road Facility of Residential Development
Kim, Tae-Gyun ; Choi, Dae-Sik ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 241~248
DOI : 10.5804/LHIJ.2012.3.3.241
Although infrastructure cost comprises the great proportion of residential development cost, all of it tends to be borne by land developers which develop large area. This brings about free-riding by adjacent small development or built-up area, followed by the equity problem in terms of infrastructure development cost sharing and the privatization of development gain. This study aims to establish the method to analyze free-riding on the transportation infrastructure(roads) and investigate empirically how much the free-riding occurs. It sets several development scenarios to calculate the part generated by Bucheon Sangdong district, the case area of this study, of all the traffic flow on the roads. The Network analysis is used to estimate the proportion, by development scenarios, of traffic flow, travel time, and travel cost. As a result, the developer of Bucheon Sangdong district is responsible for 83% of the construction cost of selected roads. The methodology and empirical result of this study would contribute to determine who are liable for the infrastructure facilitation and to estimate how much of the cost the obligators have to share.
A Development and Evaluation of an Web-based Apartment Buildings Energy Information System
Kim, Jong-Yeob ; Hwang, Ha-Jin ; Lee, Jong-Sung ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 249~261
DOI : 10.5804/LHIJ.2012.3.3.249
The energy use of building operational stage is about 25% of total energy supply in Korea. The intensification of insulation at the design stage and the efficient instruments were used to reduce energy use of the buildings. These efforts are limited at the energy saving side, the residents voluntarily participation in the energy-conservation is more effective. To achieve this purpose, energy use information program (of the individual users) has been developed to lead the energy users actively participating in the energy-conservation program to share at the web. Also, by investigating the necessity and the will of usage of the program and applying a pilot program, the collectability of valid data and the usability have been evaluated.
A Study on the Application of Integrated Management System for Building Energy Efficiency
Yoo, Jung-Hyun ; Kim, Jong-Yeob ; Hwang, Ha-Jin ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 263~270
DOI : 10.5804/LHIJ.2012.3.3.263
Energy consumption of building is given a sizable portion in total national energy conservation. From this reason, the integrated management system of national building energy was proposed to manage energy usage and of which feasibility study was demonstrated in Seoul at 2010. Expansion of the application availability for the aforementioned system, energy policies etc. have focused on the building sectors and future uses and developments are investigated. Specially, energy consumption and building documentary DB are useful to validate energy usage for each building and define to remodelling effect before and after. Furthermore, in this study, a number of developments and applications of the system and future uses of energy usage data can be identified.
The Urban Water Cycle Planning Elements and Hydrologic Cycle Simulation for Green City
Lee, Jung-Min ; Kim, Jong-Lim ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 271~278
DOI : 10.5804/LHIJ.2012.3.3.271
The climate change and global warming has been a world-wide issue. Also, the green growth has been a widely adopted strategy for national and regional development. In particular, after the Kyoto Protocol to United Nations Framework Convention on Climate Change was declared, the low carbon society was inevitable phenomenon. The hydrologic cycle in urban catchment has been changed due to the expansion of impervious area by rapid urban development. This paper has examined the Water cycle planning elements for green city in the scale of urban planning as well as site planning including housing site. In this study, the SWMM5-LID (Storm Water Management Model5-LID) model was used to simulate the hydrologic cycle of the test catchment as a typical urban catchment. We performed continuous simulation on urban runoff before and after the development of the test catchment and after the installation of Green city planning Elements.
Suggestion of Load and Resistance Factored Design Value for PHC Bored Pile
Park, Jong-Bae ; Park, Yong-Boo ; Lee, Bum-Sik ; Kim, Sang-Yeon ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 279~286
DOI : 10.5804/LHIJ.2012.3.3.279
The limit states design method is replacing the allowable stress design method worldwide, e.g. the design code of ISO and various construction codes of Korea are adopting the reliability based limit state method. This paper proposed LRFD design value which is one of limit states design method for the PHC bored pile used as building foundation. This paper analysed 81 load test results and the bearing design(Meyerhof method & SPT-CPT conversion method), and proposed LRFD value for each design reliability Index 2.33 and 3.0 for PHC bored pile. LRFD value of PHC bored pile represents 0.36~0.44 for Meyerhof method and 0.24~0.31 for SPT-CPT conversion method according to the deign reliability index.
The Effect of Mixing Ratio of Blast Furnace Slag and Fly Ash on Material Properties of 80MPa High Strength Concrete with Ternary Cement
Lee, Bum-Sik ; Jun, Myoung-Hoon ; Lee, Do-Heun ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 287~297
DOI : 10.5804/LHIJ.2012.3.3.287
To develop 80MPa-high strength concrete with ternary cement used in OPC, blast-furnance slag, and fly ash, mixing ratio of blast-furnace slag and fly ash was evaluated in material characteristics before and after hardening of the high strength concrete. According to the evaluated results of material characteristics before and after hardening of the high strength concrete, the flowability and long-term compressive strength increase up to 30% mixing ratio of blast-furnace slag and fly ash. Also, it is superior to characteristics of length change and neutralization due to the use of mineral admixture when compared in test sample mixed with OPC. The evaluated results show that material characteristics of the high strength concrete was the most outstanding performance at blast-furnace slag of 25% and fly ash of 15%. The result of this study will be useful for the development of high strength concrete as a substitute of costly silica fume in the near future.
Evaluation of Fermentation Extinction Rate of Food Waste according to the Various Types of Wood Chip with Different Pore Structures
Oh, Jeong-Ik ; Kim, Hyo-Jin ;
LHI Journal of Land, Housing, and Urban Affairs , volume 3, issue 3, 2012, Pages 299~305
DOI : 10.5804/LHIJ.2012.3.3.299
Various types of bio wood chip for fermentation-extinction of food waste was investigated by comparing their different pore structure with the performance of weight loss rate and microbial activity. The fermentation-extinction of food waste with bio wood chip was examined by adding 700~1,500g of food waste every day during 15 days to the fermentation-extinction reactor with condition of
temperature and 30~70% humidity, where 1,500g of bio wood chips were existed. The bio wood chips used in this experiment were categorized into 4 different types; microbial-mixing type(A biochip), macro pore type(B biochip) under
of pore size, micro pore type of wood-chips(C biochip) under
of pore size, viscous & sticky type(D biochip). As a result, A, B, C, D bio wood chip exhibited 85%, 63%, 92%, 73% weight loss of food waste with fermentation-extinction. The maximum weight loss of food waste was obtained at the fermentation-extinction experiments by using C bio wood chip. On the other hands, the maximum ratio of ATP to COD and TN was obtained from
in the case of C bio wood chip, comparing with other types of bio wood chip. Consequently, the performance of weight loss rate was affected with the micro pore structure of bio wood chip which have an advantage of extensive microbial activity space in the fermentation-extinction of food waste.