• Title/Summary/Keyword: Public Transit

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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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Analysis of Effectiveness on Subsidizing Commuting Cost for Public Transit User (대중교통 이용자 통근비용 보조제도의 효과분석)

  • Han, Sang-Yong;Lee, Seong-Won
    • Journal of Korean Society of Transportation
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    • v.24 no.1 s.87
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    • pp.59-72
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    • 2006
  • In spite of continuous implementation of the transportation demand management (TDM), the profuse use of car at the peak-time has caused chronic traffic congestion in the Seoul downtown area. This study makes a comparative analysis on the effectiveness of commuting cost subsidy system for public transit user with other policy instruments such as an increment in fuel tax and park cost. This study not only follows standard guidelines of stated preference methodology to guarantee objectivity, but also uses sample enumeration method and non-Parametric bootstrapping method to secure reliability of empirical results. As a result of empirical studies, the conversion effect of car to public transit is superior to other two Policy instruments. Also. an increment in fuel tax and park cost is income-regressive from the equity aspect in a wage bracket, but commuting cost subsidy system for Public transit user is Income-progressive As a fundamental research on commuting cost subsidy system for public transit user, this study is likely to Provide Policy-makers with quantitative information useful in establishing Public transport Policy to Promote the use of the public transit.

The Analysis of Distribution Characteristic on the Operation Cost for Respective Transport Volume and Travel Speed of New Transit System Bi-Modal Tram (녹색 신교통 시스템 바이모달트램의 수송수요 및 운행속도별 운영비용 분포특성 분석)

  • Bae, Eul-Ho;Kim, Kyung-Man;Shin, Cheol-Ho;Kim, Do-Han;Park, Young-Kon
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.2297-2302
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    • 2010
  • The status and effectiveness of Bi-modal Tram is analyzed through the comparison of the transport effectiveness and operation cost between the public transportation systems (bus, light rail transit) considering the vehicle and operation characteristic of new transit system Bi-modal Tram. The standard operation schedule is established in consideration of the vehicle specification and operation characteristic of main public transportation modes, and then the annual average operation cost is estimated depending on the volume, speed, analysis length for respective public transportation mode. Through analyzing the operation cost and distribution characteristic of public transportation modes depending on the transport volume and travel speed, the operational efficiency suitable for the city is derived. It is concluded that the operational efficiency of Bi-modal Tram is superior to that of the bus and light rail transit on the aspect of travel volume and operation speed.

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Analysis of Transit Passenger Movements within Seoul-Gyeonggi-Incheon Area using Transportation Card (대중교통카드자료를 활용한 수도권 통행인구 이동진단)

  • Lee, Mee Young;Kim, Jong Hyung
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.15 no.5
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    • pp.12-19
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    • 2016
  • An average of 20 million individual transit unit activities per day on the Seoul-Gyeonggi-Incheon public transportation network are provided as transportation card analysis data by the metropolitan district (99.02% by 2014 standard, Humanlive, 2015.4). The metropolitan transportation card data can be employed in a comprehensive analysis of public transportation users' current transit patterns and by means of this, an effective use plan can be explored. In enhancing the existing information on the bus and rail integrated network of the metropolis with public transportation card data, the constraints in the existing methodology of metropolitan transit analysis, which functions on a zone unit origin and destination basis, can be overcome. Framework for metropolitan public transportation card data based integrated public transportation analysis, which consists of bus and rail integrated transport modes, is constructed, and through this, a single passenger's transit behavior transit volume can be approximated. This research proposes that in the use of metropolitan public transportation card data, integrated public transportation usage, as a part of individual passenger spatial movements, can be analyzed. Furthermore, metropolitan public transportation card usage data can provide insights into understanding not only movements of populations taking on transit activities, but also, characteristics of metropolitan local space.

A Comparative Analysis of Characteristics of Mode Choice and Mode Transfer to Public Transit by Mode-Choice Class for the Effective Transportation Demand Management Implement (효과적인 교통수요관리방안의 추진을 위한 교통수단선택 계층별 수단선택특성 및 대중교통으로의 전환의식 비교 분석)

  • Hwang, Jung-Hoon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.33 no.6
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    • pp.2493-2501
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    • 2013
  • Various schemes of transportation demand management(TDM) to discourage the use of cars and enhance public transit performance have been implemented in large cities. Nevertheless, policy effects in reducing car have not been satisfactory. Car-dependent travelers who tend to keep driving cars regardless of the change of the trip circumstances as such increase of travel time and cost according to car use or improvement of public transit service may be due to not according to utility reflecting mode-specific impedance and their own socio-economic characteristics. In this study, travelers were classified into four groups by their choice frequency of private car and public transit in unspecified multiple trip(car-dependent, car-choice, public transit-choice, public transit-dependent class). And the characteristics of each group were comparative analyzed. The results show that the group of a higher car-dependent is a higher priority on convenience and comfortability of the car when making decisions and the group of a lower of car-dependent is likely to change to public transit.

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.

Implementation of OPNET-based simulation model for the performance evaluation of ATM VP Transit network (ATM VP 중계망의 성능 시험을 위한 OPNET 기반의 시뮬레이션 모델 구현)

  • 구수용;김영탁
    • Journal of the Korea Society for Simulation
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    • v.8 no.4
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    • pp.125-136
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    • 1999
  • In the forthcoming public ATM/B-ISDN, the efficient resource management with pre-planned transit networking which public domain NNI signaling is essential to maintain high network utilization and to assure QoS to the multimedia service users. For this purpose the transit networks must be managed according to the bearer service capability which is defined by ATM Forum and ITU-T. In this paper, we introduce an implementation of ATM transit networking with ATM VP-XC(Virtual Path cross-connect) and US(Network Management System). The functions of ATM VP-XC and NMS have been simulated with OPNET 6.1 modules. We implemented the F4 OAM functions of ATM VP connection according to the ITU-T 1.610 recommendation. Also, the ATM VP transit networking is managed by the NMS according to the connection management architecture of the TWN(Telecommunications Management Network) /TINA ( Telecommunications Information Networking Architecture).

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A Nonlinear Programming Model for Evaluating Public Transit Fare Structure (비선형설계모형을 이용한 대중교통요금구조평가)

  • 조중래
    • Journal of Korean Society of Transportation
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    • v.7 no.2
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    • pp.17-27
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    • 1989
  • A nonlinear programming model for evaluating public transit fare system is proposed. The model finds transit fare level and the structure that maximizes gross fare-box revenue subject to constraints on minimum ridership and the form of the fare equations. It is assumed that the demand for transit is a function of fare and its own-fare elasticity. It is assumed that the demand for transit is a function of fare and its own-fare elasticity. It is also assumed that the conditions including fare of the other modes are unchanged ; i.e., partial equilibrium. Empirical study has been performed for the case of Seoul subway system. This study includes an analysis of fare structure ; flat system and distance-based fare system. Sensitivity and comperative static analysis for elasticity has been also demonstrated.

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Analysis of Regional Transit Convenience in Seoul Public Transportation Networks Using Smart Card Big Data (스마트카드 빅데이터를 이용한 서울시 지역별 대중교통 이동 편의성 분석)

  • Moon, Hyunkoo;Oh, Kyuhyup;Kim, SangKuk;Jung, Jae-Yoon
    • Journal of Korean Institute of Industrial Engineers
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    • v.42 no.4
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    • pp.296-303
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    • 2016
  • In public transportation, smart cards have been introduced for the purpose of convenient payment systems. The smart card transaction data can be utilized not only for the exact and convenient payment but also for civil planning based on travel tracking of citizens. This paper focuses on the analysis of the transportation convenience using the smart card big data. To this end, a new index is developed to measure the transit convenience of each region by considering how passengers actually experience the transportation network in their travels. The movement data such as movement distance, time and amount between regions are utilized to access the public transportation convenience of each region. A smart card data of five working days in March is used to evaluate the transit convenience of each region in Seoul city. The contribution of this study is that a new transit convenience measure was developed based on the reality data. It is expected that this measure can be used as a means of quantitative analysis in civil planning such as a traffic policy or local policy.

A Preliminary Strategic Study of Resilient Plot Utilization in Rail Transit Stations in the Realm of the City Center, Guided by the Density of Three-Dimensional-Path Public Space

  • Yuan Zhu;Zixin Luo
    • International Journal of High-Rise Buildings
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    • v.13 no.1
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    • pp.57-67
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    • 2024
  • With the requirement of high quality and three-dimensional urban development, the public space areas city-center rail transit stations is expanded from the plots defined by the road network density to the plots defined by the three-dimensional public space density, covering the internal and external paths of the plots, which brings about the resilient pattern of plot utilization. This paper uses the isochronous three-dimensional influence realm model around the station areas to quantitatively analyze and compare the surrounding three-dimensional path density of public space, and initially proposes flexible use patterns of differently scaled plots under the multi-scale plots linkage, to effectively promote the overall accessibility of the station realm space.