• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2005년도 추계학술대회 논문집
• /
• pp.119-124
• /
• 2005

Decision of operation performance mode to minimize the energy consumption of urban rail vehicle. This paper analyses how much acceleration and deceleration of urban rail vehicle should be applied andhow to choose an operation mode to minimize energy consumption when train runs between station within the fixed operation time. The decided operation pattern satisfying the minimum energy consumption becomes a target trajectory and a basis for the controller design criteria. To make this goal it grasps the characteristics of urban rail vehicle, realize operation energy model of urban rail vehicle and verify the accuracy of embodied model the Matlab simulation with the same operation result of real route. It searches for operation pattern to minimize operation energy by changing the acceleration and deceleration on the imaginative route and proposes operation pattern minimizing energy consumption by applying real operation data between Dolgogee-Sukgye section of Seoul Metropolitan Subway Line 6.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2003년도 추계학술대회 논문집(III)
• /
• pp.210-215
• /
• 2003

At present, communication network for subway is making use of the train radio system for main network and normally established a base station every three subway station. It is talk over the telephone between a locomotive and the traffic control for careful train service. Besides, mobile telephone equipment is using for service improve and convenience to passengers such as 011, 016, 017, 019 and what not. However, the train radio system has been occurring a various problems when a state of emergency because it is able to compose only one communication route each base station zone. We could have improving like this problems through induce the TRS(Trunked Radio System), though because have been able to compose multilateral communication route in case of linking with LCX(Leaked Coaxial) cable which is established. Therefore, we could be able to a fitting meet the emergency as train firing etc.. and efficient use of limited frequency resources.

• 대한토목학회논문집
• /
• 제36권1호
• /
• pp.115-120
• /
• 2016

본 논문에서는 철도역 연계서비스수준 평가지표 설정 및 적용방안 도출을 위하여 전국 철도역 중 56개소를 선정하여 이용객 접근시간 조사를 수행하고 이를 기반으로 KTX, 일반철도의 연계영향권과 서비스수준(LOS) 평가지표를 도출하였다. 또한 도출된 평가지표를 활용하여 56개 철도역의 연계서비스수준을 평가하였다. 평가 결과 KTX, 일반철도 모두 일부 권역을 제외하고 연계서비스 수준이 모두 "E"등급으로 매우 열악하다는 것을 알 수 있었다. 마지막으로 연계체계 개선을 위한 정비방향을 연계시설 확충, 연계노선의 확충, 혼잡구간 교통체계 개선, 개인교통수단 이용자 및 연계교통시설 이용자를 위한 해당시설의 용량 확충 방향 등을 제안하였다.

• 한국터널지하공간학회 논문집
• /
• 제12권4호
• /
• pp.307-319
• /
• 2010

대구지하철 화재사고에서와 같이 철도터널 내 화재는 제연과 배연의 어려움으로 자칫 대형 사고로 이어질 가능성이 크다. 철도터널에서는 화재 시 안전성 확보를 위하여 정량적 위험도 평가를 통하여 방재 시설을 설치하도록 되어 있다. 이 연구에서는 터널내 화재시 정량적 위험도평가를 위해서 필요한 화재발생 표준시나리오, 화재 및 대피해석모델, 사망자 추정모델, 사회적 위험도 평가기준 등을 정립하여 철도터널에 대한 정량적 안전성 평가 기법을 제시하고자 하였다. 또한 본 연구에는 각각의 철도터널 화재사고에 대한 정량적 위험도를 평가할 수 있는 프로그램의 개발과 각종 모델을 정립하여 호남고속철도 방재시설 설계에 반영하였다.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2002년도 하계학술대회 논문집 B
• /
• pp.1205-1207
• /
• 2002

As going through technical transition of signal control logic to mechanic, electric, electronic etc., railway signalling system utilizing computer control technology has recently been developed and used since railroad service had been firstly started in 1825 by beginning that horseman kept red color sign and notified something wrong existence and nonexistence of front route to train driver in the Britain. In this paper, the domestic technical change process of signalling technology to be a basic of train control technology is discussed and then reviewed about technical trend of advanced nation's development.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2011년도 춘계학술대회 논문집
• /
• pp.1848-1859
• /
• 2011

A subsidiary-main track for passenger station is a low-speed track section distinct from a through route such as a main track. It is parallel to a through track and connected to it at both ends by switches. Sidetracks allow for fast, high priority trains to pass slower or lower priority trains going the same direction. They are important for efficiency to order and organize the flow of rail traffic. In this paper we first describe the minimum headway between trains using the concept of occupation time in a block section, which depends on block systems, signalling system and safety technology. And then a stepwise approach is presented to select station, which is suitable to install sidetrack for a given train-traffic pattern. This approach is tested with sample example data, which are surveyed from track geometry based on the to-be-constructed line.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
• /
• pp.1894-1904
• /
• 2011

The Light Rail Transit (LRT) System which has medium transport capacity between subway and bus(5,000-25,000 persons per hour) is the most advanced transportation system. It has many benefits, cheap construction, operational costs through driverless and flexible route planning. Also, the rubber tired AGT (K-AGT) of various LRT has a rubber wheels and side guide. The side guide type has an many advantages. but occur a vibration and friction noise through contact between guide rail and wheel. Most of point that decreased comport is vibration thorough the guide contact. In this paper, It is purpose to improve the maximum running speed of rubber tired AGT localization bogie which is currently developed from 70km/h to 80km/h. To satisfy comport index of railway vehicle that is required in performance test. we examined coefficient of bogie suspension which is designed.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
• /
• pp.2300-2305
• /
• 2011

A Train control system is intended to assure train operation safety and to improve train operation efficiency. To perform these missions, the Train Control System consists of train safety space control part, train route control part and train operation management part. Train control technology changed from track circuit based to wireless based. And Wireless based train control technologies were developed by some railway signaling companies in Korea. To commercialize these control technologies, the development project is carried now. This project did analyze system requirements, and made the system development specification. Now this project finished system functions allocation, which will be performed by some subsystem. This paper describes roles of each function and the allocation of these functions to each subsystem.

• 한국철도학회논문집
• /
• 제3권3호
• /
• pp.125-130
• /
• 2000

DES software is a Computer Aided Design(CAD) tool. It is built based on objected-oriented principle. Utilizing strong processing capability and quirk calculation of computer, it can search out all possible routes, and give out interlocking table on the base of chosen routes by user. It can provide a large number of data for computers included in computer interlocking system. It is efficient and reliable.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 1999년도 춘계학술대회 논문집
• /
• pp.315-321
• /
• 1999

The railway signaling system consists of microcomputerized vital devices on board and ground, which are connected to one another by track circuits, and interlocking equipment for route control, The software plays a major role in these microcomputer-based vital systems. Therefore it is important to design the software and validate the required levels of safety and reliability To verify the conditions and functions of signaling logic, the laboratory prototype test bench, which consists of personal computers, VME system and Ethernet LAN, will be developed. In this paper general design of signaling system test bench for high-speed rail is described and some developed subprogram is presented.