• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2014년도 춘계학술대회 논문집
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• pp.625-629
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• 2014

For the purpose of the acoustic performance evaluation of noise reduction device(NRD) installed at the top of noise barrier for further decreasing of noise level of 400km/h class high-speed railroad(HEMU), the acoustic performance test method using speaker instead of really running railway vehicle was suggested in this paper. For this, noise source location and frequency spectrum of HEMU was analyzed through the field noise test. These data were used for the determination of speaker's installation positions and frequency correction values applied to the speaker noise source. And, 400 meters long NRD was installed at the site where HEMU will be running at a speed of 400km/h. Finally, the outdoor speaker test with and without NRD showed that this NRD could decrease noise level even more than 3dB(A). In the future, the acoustic performance results of NRD conducted with speaker test will be compared with that of field test for HEMU running at a speed of 400km/h.

• KIEAE Journal
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• 제15권5호
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• pp.21-33
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• 2015

Purpose: Domestically, a recent controversial part on Mixed-Use Development is its case that utilizes railroad sites among urban infrastructure. but most of all, a concern is being concentrated on the Mixed-Use Development that uses railroad depot. It has the advantage, which can give diversity and publicness to urban environment by using and planing the upper and bottom of railroad depot, a proximity site as Development Available Land. However, there are few cases except for only Yang-cheon APT in SinJeong railway depot as a domestic case even though a domestic concern about Mixed-Use Development is rising more than ever. Method: Accordingly, this study has something in common with a domestic case, dealing with a case of development in Hongkong that enhances efficiency for city space through Mixed-Use Development and solves various urban problems. Result: A purpose of this study, based on overall comprehension about Rail and Property Model of MTRC in Hongkong, is to figure out how it solve various problems in Mixed-Use Development using Railway Depot or stations in the base of Rail and Property Model of MTRC.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1993년도 학술발표집 지반진동 영향평가
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• pp.15-54
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• 1993

미국 테네시주 채펠 힐 북쪽 3.2km, 한 철로변에서 지반진동을 계측하였다. 6일동안 18회의 열차 주행중에 이 계측을 수행하였다. 이 연구의 목적은 열차나 다른 교통수단에 의한 SSC(Superconducting Super Collider) 설치 예상 깊이에서 지반 진동 크기를 분석 평가하는 데 있다. 이 지반 진동과 비교할 .기준치는 매우 엄밀히 설정된 간이다 . 즉, 주파수 3 Hz에서 0.0005인치(0.0127mm)이다. 이 계측 결과로는, 지하 100ft(30m)이하 암반에서, 열차 주행으로 부터 유발되는 진동 크기는 기껏 커도 기준치의 10분의 1 이하이다.

• 헤리티지:역사와 과학
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• 제51권2호
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• pp.38-57
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• 2018

철도문화유산에 대한 발굴과 보존 연구는 문화재청을 중심으로 근대 문화유산등록제도와 근대 철도교통문화유산 발굴 작업 등에 국한되어 왔다. 한편 철도관련 단체 등의 노력은 미비하였고 철도공사에서 철도문화유산 보존을 위한 내부지침을 만들어 시행하고 있는 정도에 머무르고 있다. 이러한 문제점에 주목하여 본 연구는 철도문화유산 중 철도차량유산을 중심으로 보존 및 활성화의 당위성을 주장하고 그 방안을 제시하고자 하였다. 이러한 목적을 달성하기 위해 철도차량유산의 현장답사를 통해 보존현황을 파악하였고, 해외의 보존사례를 조사하였으며, 이를 바탕으로 철도차량유산의 역사적 가치를 인식하고, 널리 알리는 활성화 방안을 제시하고자 하였다. 연구 결과 첫째, 등록문화재로 등록된 철도차량유산들은 한 장소에서 보존 전시만 할 것이 아니라 보존 차량의 개방 및 관람대를 제공하여 관람을 가능하게 해야 한다. 둘째, 천연기념물이나 무형문화재와 같이 철도를 하나의 문화재 범주로 인식하고 문화재보호법 개정을 통해 문화재 항목을 신설해야 한다. 셋째, sns 및 블로그와 카페를 활용한 전략적 홍보를 통해 전체 국민을 대상으로 한 철도문화유산에 대한 관심도를 증가시키고, 철도문화유산에 대한 인식을 제고해야 한다. 넷째, 법령 및 제도적 지원과 더불어 철도차량유산을 관리하고 이를 운영할 예산, 전담부서, 전담인원의 충원은 문화재 관리역량 강화를 위해 우선적으로 해결되어야 한다. 이상의 연구결과에서와 같이 철도문화유산의 합리적인 보존과 활성화를 위해서는 행정적, 재정적 지원 및 법적 조항을 만들어 철도산업발전기본법에 보존의 근거를 만들어야 할 필요성이 있다. 철도차량유산은 그 보존 가치가 높고, 지역의 상징이자 역사의 흔적이며, 삶의 기록으로서 사회적 가치를 가진다. 이러한 상황에서 정책 및 보호법 개정에 대한 기준의 정립이 시급할 것으로 판단된다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.341-344
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• 2005

High-speed trains with maximum speed of 300km/h, named KTX, have started revenue services since April 2004. Because of the geographical features of Korea a large portion of the 'Kyung-Bu' line is comprised of tunnels, which may cause excessive noise in a vehicle. The KTX interior noise follows in tunnel structure and the place where the quality appears different, the quality against hereupon from the commerce vehicle from the research which it sees it executes and comparison to analyze.

• 한국환경과학회지
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• 제20권2호
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• pp.199-205
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• 2011

This study used to the satellite photograph and drew up a flood inundation map. To past used digital map and showed reflect the inundation map and change of the city was difficult. The acquisition of the satellite photograph is easy from internet Site of Korea and is updated quickly. So, used the satellite photograph from flood inundation drawing up of existing and reflected the change of the city. Drawing up method of the inundation map in compliance with the research which sees the reflection of the land use which is actual is possible. Results of HEC-RAS with depth and an inundation location to be show easily. But there is to a combination method of the satellite photographs and GIS data and more objective and the subject the development of the technique which has reached fixed quantity must be researched continuously judges.

• 환경영향평가
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• 제19권6호
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• pp.553-561
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• 2010

Railway noise barrier is generally used with welding of joint rail for railway noise reduction in our country. In this study, method for performance evaluation of railway noise barrier using insertion loss was suggested in case of without having noise measurement results before barrier installation. For this, railway noise measurements were performed in commercial high-speed railway site which has railway noise barrier. As a noise level before noise barrier installation, predicted noise level were used. From this method the performance evaluation for railway noise barrier were performed accurately and efficiently.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2001년도 춘계학술대회 논문집
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• pp.381-386
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• 2001

In many countries the slab track of railroads is mostly applied on the railroad bridges and tunnels, however it hasn't been constructed in the tunnel in Korea. Presently the Korea high speed railway construction authority is planning to construct slab track in the tunnels to minimize the cost of maintenance and repair. In this study, dynamic characteristics of the railroad roadbed which was constructed using crushed stones obtained from tunnel construction was investigated through the field investigation, real scale model test and numerical analysis. As a conclusion, the roadbeds built with the crushed stones produced at the tunneling site satisfy the requirement of roadbed in terms of displacement and earth pressure for the slab track in tile tunnel.

• 한국대기환경학회지
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• 제20권4호
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• pp.539-553
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• 2004

Up to the present time, many methods to estimate emissions from a particular diesel engines have wholly depended on the quantity of diesel fuel consumed. Then, the recommended emission factors were normalized by fuel consumption, and further total activity was estimated by the total fuel consumed. One of main purposes in the study is newly to develop emission factors for the railroad diesel rolling stock (RDRS) and to estimate a total amount of major gaseous pollutants from the RDRS in Korea. Prior to develop a Korean mode emission factor. the emission factor from the USEPA was simply applied for comparative studies. When applying the USEPA emission factors, total exhaust emissions from the RDRS in Korea were estimated by 28,117tons of NOx, 2,832.3tons of CO, and 1,237.5tons of HC, etc in 2001. In this study, a emission factor for the RDRS, so called the KoRail mode (the Korean Railroad mode) has been developed on the basis of analyzing the driving pattern of the Gyeongbu-Line especially for the line-haul mode. Explicitly to make the site specific emission factors, many uncertainty problems concerning weighting factors for each power mode, limited emission test, incomplete data for RDRS, and other important input parameters were extensively examined. Total exhaust emissions by KoRail mode in Korea were estimated by 10,960tons of NOx, and 4,622tons of CO, and so on in the year of 2001. The emissions estimated by the USEPA mode were 2.6 times higher for NOx, and 1.6 times lower for CO than those by the KoRail mode. As a conclusion, based on the emission calculated from both the USEPA mode and the KoRail mode, the RDRS is considered as one of the significant mobile sources for major gaseous pollutants and thus management plans an(1 control strategies for the RDRS must be established to improve air quality near future in Korea.

• 한국조경학회지
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• 제33권5호통권112호
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• pp.15-30
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• 2005

A deserted town once vibrant with active commercial activities around a railroad station now tries to find a way to escape from depression and revive its life with a renewed civic pride. An open space adjacent to the Main Street, the commercial district of Buzzards Bay, Massachusetts, is waiting to be transformed and reconfigured to be a new ecological park to boost the economy of the community. Bridge Park is 26-acre land abutting the Cape Cod Canal with a railroad bridge as a backdrop. The existing condition of the site with a small salt marsh, woodland, lawn, and the vestige of old railroad easement along with the proximity to the commercial district poses an interesting question of how to make a medium scaled ecological park within an urban context. This paper examines the winning design proposals for the Bridge Park submitted to the International Design Competition held in April, 2005. Six winning proposals were introduced and discussed in terms of categories related to the trend of contemporary landscape design such as; 1) ecological ordinariness and geometric figures, 2) topography and spatial imagination, 3) minimal programs and open put 4) time and process oriented design, 5) park and economic effects and 6) diagrammatic plan and photo montage. Bridge Park Design Competition confirms the complex characteristics representing the contemporary landscape design overcoming the dichotomy between nature and culture and the 'pastoral ecological design' and 'landscape as an art'. The Park becomes the activating agent for the community rejecting the conventional and passive role as a romantic picturesque landscape. Bridge Park International Design Competition is a meaningful event to test the idea of new ecological urban park, and to fine-tune the trend of the contemporary urban park design.