• Title/Summary/Keyword: Urban rail transit types

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Research on the Correlation Between Rail Transit Entrances and Urban Form in High-Density Areas

  • Dongzhu Chu;Hong Su
    • International Journal of High-Rise Buildings
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    • v.12 no.1
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    • pp.35-47
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    • 2023
  • The transport system and its infrastructure are not only the fundamental means of sustaining the operation of contemporary cities, but also important drivers for the evolution of urban form. Rail transit, critical to improving the operational efficiency and optimizing the spatial layout in cities, is one of the critical conditions for high-density areas with limited land and concentrated resources to be compact to take on complex challenges. As a node element of infrastructure, rail transit entrances are the most important points connecting the rail transit system with urban space. Although influenced by urban form, their quantity and location also influence and shape the evolution of urban space form. Based on the development gap of high-density areas in various contexts, focusing on various rail transit stations in Asia, this research analyzes the correlation between rail transit entrances and peripheral high-density urban form in a delicate, dynamic and granular way. The research considers both horizontal and vertical perspectives, in combination with the urban evolution process in time series, to explore the development trend of high-density urban form in Asia from the aspect of correlation, and building a new foundation for research on urban form, suitable for different types of cities.

The Building for Safety Regulation DB of Urban Transit System Infrastructure used by Computer Design Tool (전산지원도구를 이용한 도시철도시설 안전기준 DB구축 연구)

  • Lee, Woo-Dong;Shin, Jeong-Ryul;Ahn, Tai-Ki
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.786-790
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    • 2006
  • Urban rail transit offers target performance and function because various lower part system such as rolling-stock, signal, power and trackis consisted as complex. In order to function properly an urban rail transit which is complicated system to work as safety and reliability, System must secure safety with structure, design, manufacture, install and verification and it is important to establish a safety standard follows it procedures, establish what step all it is important to operate. Safety standard of urban transit infrastructure is minimum standard necessary to secure safety of signal, power and track. Urban rail transit standard business leads to make many requirements. Recently, many types of equipment have applied to manage requirements and standards for system efficiently in part of universal, airline and car accordingly applied equipments use to manage a pursuit(Trace) between standard of system. Especially importance of management is emphasized more become more. Importance of standard management which usesa computing support tool recently in transit filed is embossed and is predicted to be more such forward. Therefore we propose the effective method of management with infrastructure system by constructed data-base system.

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A Study on Travel Cost Function of Transit Assignment Model (대중교통 통행배정모형의 통행비용함수 분석)

  • Kim, Kyoung Tae;Lee, Suk Kwon;Kwon, Yong Seok
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.1902-1907
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    • 2007
  • This paper suggests improvements in travel cost function of transit assignment model by analysing existing model. Two types of travel cost function are widely used for congested public networks. The one is used for strictly restricting public transport capacity. Another is non-decreasing function such as BPR function. In this paper, we analyse two types of travel cost function in case of intercity rail. The characteristics of intercity rail are different from those of public transit in urban area. Therefore travel cost function must be differently applied in each case.

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Comparative Study on the Characteristics of Public Transport Users According to the Types of Transit Station Influence Areas in Seoul's Urban Railway's (서울시 도시철도 환승역세권 유형별 대중교통이용자 특성 비교연구)

  • Lim, Sam-Jin;Park, Jun-Tae;Kim, Tae-Ho
    • Journal of the Korean Society for Railway
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    • v.16 no.2
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    • pp.129-137
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    • 2013
  • This study This study aims to identify sound developmental directions for transit-oriented development (TOD), which is a topic of interest in the field of urban development, and conducts an empirical analysis of station influence areas within Seoul according to the characteristics of transit types. The results suggest that there are differences among variables that influence demand for public transportation according to transit types. This means that it is necessary to identify improvement plans in developing public transport strategies for the capital region based on such differentiated influence factors and to build foundations to continue to increase demand for public transportation. Also, station influence areas should be developed into hubs by establishing appropriate bus-only lane networks as a supplementary means, rather than directly connecting subway stations with each other.

Study on the Standard Specification of Linear Induction Motor Type Light Rail Vehicle Electrical Equipment (선형유도모터형식 경전철 전기장치 표준사양 연구)

  • Cho, Hong-Shik;Lee, Ho-Yong;Cho, Bong-Kwan;Hong, Jai-Sung;Ryu, Sang-Whan
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.1181-1182
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    • 2007
  • Light Rail Transit (LRT) System is an urban transit system which has approximately an intermediate transportation capacity between conventional subway and bus ($5,000{\sim}25,000$ persons per hour and per direction). It is a high-tech system which operational capacity, punctuality and mobility are remarkably improved. There are some types of LRT systems such as monorail, tramway, AGT(Automated Guideway Transit), and so on. The LRT systems have been applied and being operated in about a hundred lines around the world and many projects that apply the LRT systems in Korea are being proceeded and scheduled. For the efficient management, economical construction, and safe operation of various LRT systems, the establishment of national standard is necessary such as vehicle standardized specification, vehicle performance test standard, vehicle safety standard, construction guide, operation regulation, etc. of LRT systems. This paper presents the standard specification of electrical equipment of linear induction motor type light rail vehicle, that is LIM AGT(AGT system propelled with linear induction motor) vehicle. The LIM AGT system has been applied in Japan subway and ART(Advanced Rapid Transit) system of Canada and Yongin LRT is currently under construction.

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Investigation of Recent Maintenance and Management in Existing Railway Bridges for Development of Urban Maglev Track Structures Inspection Manual (도시형 자기부상철도 토목구조물 유지관리 지침 작성을 위한 국내 철도교 유지관리 현황 분석)

  • Lee, Gi-Yeol;Yang, Tae-Sock;Chung, Won-Yong
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.107-111
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    • 2008
  • This paper presented a literature review and investigation analysis results of total 19 present guide book and provisions of maintenance and management system in existing railway bridges to development of urban maglev track structures inspection manual. This research carried out a cooperated research subject 3-1, development a design code and maintenance and management inspection manual for urban maglev track structures, of the Center for Urban Maglev Program. Three types of track structures were includes as a major analytical parameter together with railroad, high speed railroad, subway and light rail transit. Bridges were analyzed a general rules, investigation, evaluation, repair and strengthen method as a key aspect. And rail were analyzed examination and maintenance also. This analysis results show that the track structures evaluation are based on the test and examination results, and repaired or strengthened consideration of deterioration, track irregularity and materials according to provision requirements.

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Visual Characteristics of Light Rail Transit Pier for Improving Urban Landscape (도시 경관향상을 위한 경전철 교각의 시각적 특성)

  • Jung, Sung-Gwan;Shin, Jae-Yun;Kim, Kyung-Tae;Lim, Eun-Na
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.4
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    • pp.65-81
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    • 2013
  • Urban sprawl has been the limits of traffic accommodate and the supply road. Thus, Light Rail Transit(LRT) has been proposed as the best alternative. Owing to landscape damage from construction of LRT, landscape planning should be considered seriously in the urban planning step. This paper therefore seeks to determine landscape improvement direction of LRT pier. First, the methods in this study shared landscape improvement direction type of LRT pier through previous studies such as planting of surface(30%, 60%, 90% planting of surface), graphic(character, commercial advertising, symbol), and surface treatment type(exposed concrete, white painting, pattern dies). Next, respondent evaluated 3D simulated landscape image accordingly shared types by preference and landscape adjectives using in streetscape evaluation. As a result, visual preference was the highest in planting type of surface and the lowest in the surface treatment type. Covering 60%(4.48) in planting type of surface was the highest. Because it is similar to the golden ratio considering the visual principle, we will need to take advantage through the result of this paper. Also, most landscape improvement direction which satisfied with significant level showed a positive effect from landscape improvement. Comprehensively based on these results, it suggests desirable landscape improvement direction of LRT pier in the city for solution of landscape inhibition problem.

A study on measures to place an order for selection of tailor-made rolling stock systems for Gimpo urban transit (김포도시철도 맞춤형 차량시스템 선정을 위한 발주방안 검토)

  • Choi, Si-Haeng;Lim, Byeong-Gok;Jeon, Seo-Tak;Park, Jong-Hyuk
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.816-822
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    • 2010
  • A comprehensive review for the selection of urban rail vehicle systems that best suit Gimpo railway line is taking place with consideration of the project area characteristics in light of line planning, passenger demand, supply of rolling stock, and railway construction and operation. Various aspects of vehicle systems including passenger demand on concerned lines, regional characteristics, vehicle types, and railway construction and operational settings should be taken into consideration. In addition, request for the introduction of customized vehicle systems reflecting the convenience of transit users such as wide and hospitable inner space, low noise, flexible operation of 2 to 4 car train-set and eye catching slim bridge piers is increasing. A study on alternatives to place an order to opt for optimum rolling stock systems considering line characteristics of Gimpo City's urban railway and future passenger demand while meeting the needs of Gimpo City has been conducted.

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A Comparative Analysis of TOD Planning Elements of Major Urban Railway Station Areas in Seoul (환승역세권 평가를 통한 TOD 계획 요소의 비교분석)

  • Lee, Jun-Beom;Jin, Won-Young;Seo, Eun-Young;Won, Jai-Mu
    • Journal of the Korean Society for Railway
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    • v.17 no.3
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    • pp.201-209
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    • 2014
  • Transit Oriented Development(TOD) has been the dominant paradigm for urban development. The traditional approach to the development of urban rail station areas demonstrates apparent weaknesses when it comes to compact and mixed-use types of development for these stations. Thus, the objective of this study is to derive evaluation indicators with which to assess urban rail station areas using TOD planning elements. A focus group interview was conducted to explore TOD planning elements. In order to examine the level of TOD to be achieved, an AHP technique was utilized to analyze the importance of several variables. Z-scores and Re-scores were applied to derive the values for the stations. The Variables related to the land use type, mixed use, floor area, and public transit were found to be the major contributing factors to the achievement of TOD in urban rail station areas. The results of this study show that the level of TOD achievement varies according to the major land use, density, accessibility, and mixed-use planning elements.

Emergency Evacuation Scenario Study of Urban Metro Vehicle Running on Elevated Guideway (도시철도차량의 고가선로 비상대피 시나리오 분석)

  • Kim, Young-Sang;Maeng, Hee-Young;Wang, Jong-Bae
    • Journal of the Korean Society of Safety
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    • v.27 no.3
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    • pp.117-124
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    • 2012
  • There have been recently introduced new types of urban metro vehicles called LRT (Light Rail Transit) running on elevated guideway such as Uijeongbu VAL(which stands for V$\acute{e}$hicule Automatique L$\acute{e}$ger: Automatic Light Rail Vehicle) system, Yong-In LIM(Linear Induction Motor) system, Incheon international airport MAGLEV(Magnetic Levitated Vehicle) system and Daegu monorail system. Most of accidents by the vehicles are bound to happen on elevated guideway. Therefore, it is of vital importance to analyze hazards related to vehicles running on elevated guideway and study emergency evacuation scenarios applicable in case of accidents on elevated guideway so as to secure the safety of the new types of urban metro vehicles. In this study, FTA(Fault Tree Analysis) model was developed to identify all possible hazards, and all possible evacuation scenarios were studied. It was also confirmed that each hazard can be corresponded to one or more evacuation scenarios. This result shows that passengers can be evacuated according to one of the scenarios identified in this study in case of an accident of "Train Stranded on Elevated Guideway".