경제변수와 확률을 이용한 주택수요예측

장재일(Jang Jae-Il),안건혁(Ahn Kun-Hyuck) 대한국토·도시계획학회 2008 國土計劃 Vol.43 No.7

단독주택 재건축사업의 수복형 정비방식 도입에 관한 연구

장재일(Jang Jae-Il),안건혁(Ahn Kun-Hyuck) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.8

The Purpose of this paper is to suggest the standard of rehabilitation for blighted residential area. Urban renewal project can be practiced by various renewal type such as redevelopment, rehabilitation, and conservation. Though the renewal type which is suitable for the characters of each blighted residential area should be choiced, only redevelopment type generally have been used. This study assume that it is possible to decide appropriate renewal type by estimating the necessity of rearranging lot-shape and the possibility of self-developing. As a way of estimating, this paper suggest that we calculate potential building size and produce parcel based feasibility analysis. If potential building size of a lot is bigger than economically feasible size, the lot is regarded as a self-developable lot. By doing so, we can choose a proper renewal type, redevelopment or rehabilitation.

비파괴 신기술을 이용한 석유화학설비 경년손상의 새로운 평가변수 고찰

장재일(Jae-il Jang),최열(Yeol Choi),손동일(Dongil Son),이윤희(Yun-Hee Lee),권동일(Dongil Kwon),김정태(Jeoung Tae Kim) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.8

Newly developed continuous indentation technique has made nondestructive assessment of tensile properties possible. The present study was undertaken to determine new parameters for indicating time-dependent material degradation of petro-chemical plant. Continuous indentation tests were performed at Cr-Ni steel and Cr-Mo steel which are widely used as facilities of petro-chemical plant. From the results, it was found that yield strength and tensile strength cannot be used as general degradation parameters because the change tendencies of the strengths with aging time are variable. On the other hand, work hardening exponent and yield ratio showed consistent tendency with increasing aging time. Therefore, main attention of this work was paid on them as new degradation parameters, and the in-field applicability of the parameters was evaluated and discussed.

국공유지 무상양도를 활용한 재개발사업의 공공지원 방안

장재일 ( Jae Il Jang ) 한국부동산분석학회 2012 不動産學硏究 Vol.18 No.1

The scope of the gratuitous public land conveyance in Urban and Living Environment Improvement Act is not clear, so there are many administrative litigation. And it is pointed out that the gratuitous conveyance system is unfair. Therefore, this study suggest that public sector use the gratuitous conveyance system as public financial support for redevelopment area and the scale of the support be determined by feasibility analysis. In other words, public land in redevelopment area should be gratuitously conveyed to a certain feasibility level, and remaining public land should be used as another means of supporting redevelopment project. To do that, the feasibility of redevelopment areas should be objectively measured and compared. So it is required to standardize construction costs and to equate arbitrary determination factors(Landowner`s Housing Price Rate, Other Factors of Value Determination Factors in Property Appraisal) respectively. Also in order to use the gratuitous conveyance system as public financial support, 1) we should change the law and use the public land in redevelopment area as means of comprehensive public support, and 2) we should appraise official land price more strictly from the time of determining a Renewal District.

획지계획모형을 적용한 다세대주택용 획지 배치에 관한 연구

장재일(Jang Jae-Il),안건혁(Ahn Kun-Huck) 한국도시설계학회 2008 도시설계 : 한국도시설계학회지 Vol.9 No.3

단독주택지 재정비를 위한 민간사업수단의 통합 필요성에 관한 연구

장재일(Jang Jae-Il),안건혁(Ahn Kun-Hyuck) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.12

The goal of this study is to analysis present development methods for blighted detached dwelling area and to examine whether they are reasonable. This study focus on three private-initiated development methods for blighted detached dwelling areas, such as Revelopment project, Reconstruction Project, Housing Construction Project. Though these development methods have different purposes, it is practically difficult to distinguish one from another. Therefore residents are cofused in selecting a development method. Also, because there are the differences of each method in the profitability and the qualification for development union member, many projects has been delayed and the unfair problem has been brought up. After all, the difference of development methods brings more losses than gains. To solve this problems, this paper propose an alternative which integrate these three private-initiated development methods for the blighted dwelling areas. The proposal for integrating is to grade blighted detached dwelling areas by physical and social standards and to offer incentives by the grades.

재개발사업 종전자산평가의 문제점과 개선방안

장재일(Jang, Jae-Il) 대한부동산학회 2012 大韓不動産學會誌 Vol.30 No.1

본 연구는 현행 정비사업에서 종전자산평가제도의 문제점을 지적하고 개선방안을 제안하는 것을 목적으로 하였다. 문제점으로는 첫째, 토지의 종전자산평가에 있어 기준이 되는 표준지공시지가가 개발이익을 제대로 반영하지 못하고 있다는 점을 지적하였다. 이로 인해 공시지가 자체의 신뢰성을 떨어뜨리고, 가격평가의 객관성마저 저해한다는 것이다. 둘째, 정비구역내 건물에 대한 종전자산가치 산정시 주택공시가격을 기준으로 활용하지 않고 건물 유형에 따라 다른 평가방식을 적용함으로써 평가과정이 불투명하고 이해하기 어렵다는 점을 지적하였다. 그리고 이러한 이유로 종전자산가치를 사전에 예측할 수 없어 투자의 불확실성이 커지고 투기가 조장될 수 있다는 점도 지적하였다. 이와 같은 종전자산평가의 문제점을 해결하기 위해서는 관리처분계획 이전에 종전자산가치를 예측할 수 있어야 한다. 이에 본 연구는 지금의 공시가격 산정방식과 정비구역내 종전가치 산출 방식을 검토하였으며, 결과적으로 종전자산평가방식과 공시가격 산정방식을 개선할 것을 제안하였다. 즉 1)토지공시가격은 정비사업으로 인한 개발이익이 제대로 반영될 수 있도록 건물의 종전가치총액과 정비사업의 수입․비용항목을 적절히 예측해서 산출할 것, 2)종전자산평가의 기준이 되는 토지공시가격은 정비구역 지정시점에 공시하고 개발이익이 변동될 때마다 즉시 반영하여 재공시할 것, 3)종전자산평가에서 구역내 모 든 건물은 토지와 별도로 평가할 것, 4)건물부분은 원가법을 적용하여 평가하고 건물의 가격산정기준을 공개할 것을 말한다. This study is aimed to pose the problems of former property appraisal and to propose the improvements. The problems are that; 1)the officially assessed standard land price which is refered to for former property appraisal doesn t reflect development profit properly 2)when appraising former building property, the officially assessed housing price is not used and various appraisal methods are used. So former property value cannot be estimated in advance, and this might cause many civil complaints. To solve these problems, we should be able to estimate former property value before management disposal plan. So this study performed a literature review related existing valuation criteria for public announcement system of real estate price and for former property appraisal. As a result, this study suggest reforming price estimation methods for real estate in redevelopment zone. Suggested improvements are as follows; 1) the public announced land price should be estimated by anticipating project incomes and expenses 2) the standard land price, the criteria of former land appraisal, should be announced when determining a redevelopment zone and whenever development profit change 3) to appraise former properties, land and buildings should be assessed separately 4) we should assess all buildings price by cost method and make public the valuation criteria.

AHP분석을 활용한 도시발전정책 우선순위 선정 : 진주시 사례를 중심으로

장재일(Jang, Jae-Il) 도시정책학회 2020 도시부동산연구 Vol.11 No.3

This study conducted an AHP analysis for experts in urban planning and regional development in order to derive the priority of urban policy. As a result of analyzing the weight of each respondent by policy, the weights of the areas of culture and tourism development and manufacturing competitiveness were high in the large category, and the weights of culture and tourism resource development and strategic industry development were high for the small category. When classifying respondents as residents and non-residents, residents rated transportation weights higher than non-residents, and the two sides also ranked somewhat differently among the sub-categories. This difference is interpreted as being related to policy interest. Expert questionnaires can be used in the process of establishing city s development direction and prioritizing policies, and to reach a reasonable conclusion, it is necessary to check the respondent s residency characteristics and to fully understand objective values. In the process of establishing city s development direction and prioritizing policies, expert questionnaires can be used. In order to reach a reasonable conclusion through this, it is necessary to check the respondent s residency characteristics, and the process of sufficiently deliberating about objective values should be followed.

단위생활권 설정과 생활기반시설 계획을 통한 일반노후주거지 관리방안 연구

장재일(Jang, Jae-Il),배웅규(Bae, Woong-Kyoo) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.7

Recently as problems caused by the scrap and build typed redevelopment are increased, so residential regeneration for the incremental improvement upgrading method are strongly needed. To pursue rehabilitation process, not redevelopment process, we should solve these problems in deteriorated residential area: infrastructure shortage, low-level residential convenience, etc. This study regard appropriate infrastructure as a major factor of sustainable neighborhood regeneration. And this study is aimed at suggesting a guideline of infrastructure plan in detached housing area. This study focuses mainly on the deteriorated residential areas with good infrastructures which are redeveloped in the near future. As a result, this study defines the terms of "Neighborhood Unit" and "Neighborhood leveled infrastructure". The former is the smallest neighborhood whose center is a kindergarten or children"s park. It"s size is about 100,000㎡. The latter is the infrastructure to support the unit neighborhood. Also this study suggests planning standard and establishment method for living infrastructures in a unit neighborhood. These guidelines should be applied to local situation flexibly.

노선상업지역을 포함한 아파트단지의 건물 배치와 밀도에 관한 사례연구 - 대구시 사례를 중심으로

장재일(Jang, Jae-Il) 도시정책학회 2016 도시부동산연구 Vol.7 No.2

The purposes of this study were to examine the problems and suggest the solutions about the situations when both street commercial areas and residential areas are developed together as an Apartment complex. The study was focused on the 6 development plans of the renewals district that was proposed to the urban planning committee of Daegu city. In particular, the building arrangement and development density were examined. This case study found the following common factors: 1) the street commercial areas and the residential areas is one development unit but it is divided as different lots of land according to the usage of the land. 2) In the narrow land of the street commercial areas, a residential complex is planned to be built with a high density. As a result, the plate-type apartment buildings will be densely arranged along with the road in the street commercial areas. When these development plans are realized, the problems such as ugly road views, bad environments of residential areas, and the disputes among the residence owners are expected to occur. Therefore, it is necessary to consider applying the average function of floor area ratio(F.A.R) to the apartment complex where both commercial and residential areas are mixed together.