• Title/Summary/Keyword: Public[Mass] Transit

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A Path-Based Traffic Assignment Model for Integrated Mass Transit System (통합 대중교통망에서의 경로기반 통행배정 모형)

  • Shin, Seong-Il;Jung, Hee-Don;Lee, Chang-Ju
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.6 no.3
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    • pp.1-11
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    • 2007
  • Seoul's transportation system was changed drastically starting the first of June in two thousand. This policy includes integrated distance-based fare system and public transportation card system called smart card. Especially, as public transportation card data contains individual travel, transfer and using modes information it is possible to catch the characteristics of path-based individuals and mass transit. Thus, public transportation card data can contribute to evaluate the mass transit service in integrated public transportation networks. In addition, public transportation card data are able to help to convert previous researches and analyses with link-based trip assignment models to path-based mass transit service analysis. In this study, an algorithm being suitable for path-based trip assignment models is suggested and proposed algorithm can also contribute to make full use of public transportation card data. For this, column generation algorithm hewn to draw the stable solution is adopted. This paper uses the methodology that is to take local approximate equilibrium from partial network and expand local approximate equilibrium to global equilibrium.

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GIS Based Real-Time Transit Information Integration and Its Transit Planning Implications

  • Hwang, Da-Hae;Kim, Dong-Young;Choi, Yun-Soo;Cho, Seong-Kil
    • Journal of Korean Society for Geospatial Information Science
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    • v.15 no.2 s.40
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    • pp.87-93
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    • 2007
  • Over the years, Advanced Public Transportation System (APTS) has been implemented to manage and operate public transportation system. With the expanding mass spatio-temporal data such as comprehensive spatial information of each individual passenger and public transportation vehicle, it has been required to consolidate and analyze these multiple data sets from various sources. This paper demonstrates how GIS is utilized for the consolidation of massive transit related spatio-temporal information. And it presents effective applications to improve transit planning process and support transit related decision-making activities. GIS based system is used to combine multi-agents' data in the areas of transit operation and individual transit ride and transfer management. Due to the unique comprehensiveness and the level of detail of the data provide by the Seoul Transit system, this GIS based information consolidation is the first in its class. Based on the integrated database, this paper describes the effective and efficient GIS based analysis deployed in a transportation system planning process. The data integration systems and analytic models developed in this paper can be transferred and applied by any municipal governments provided that the appropriate data is available.

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An Analysis on the Traffic Problems of the Urban City (도시 교통문제에 대한 연구 -천안시를 중심으로-)

  • Park, Jong-Gwan
    • The Journal of the Korea Contents Association
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    • v.10 no.12
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    • pp.254-266
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    • 2010
  • This study dealt with Traffic Problem to Cheonan city. This study ran parallel literature investigation and actual proof investigation. Questionnaires 394 enforce frequency analysis in SPSS 15.0 versions. Traffic Problem to Cheonan city include the discomfort of public transportation, parking problem, pollution of automobile, traffic accident. By improvement of traffic problem, first, improvement plan of transportation system by administration of logical traffic demand should be readied. Second, because Cheonan city is many an university student who is use target of public transportation, public transportation utilization ratio must raise through discount application. Third, solution of traffic jam need to the improvement and strengthening of system of public transit. Fourth, Cheonan city must push ahead with supplies of traffic facility, modify of transportation network, and improvement of operating system. In particular, Cheonan city need to modify old road and improvement of accessibility though road network briefly. Fifth, Cheonan city need fixing of van traffic culture such as solution of parking problem and traffic order consciousness fostering of users.

Design of a machine learning based mobile application with GPS, mobile sensors, public GIS: real time prediction on personal daily routes

  • Shin, Hyunkyung
    • International journal of advanced smart convergence
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    • v.7 no.4
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    • pp.27-39
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    • 2018
  • Since the global positioning system (GPS) has been included in mobile devices (e.g., for car navigation, in smartphones, and in smart watches), the impact of personal GPS log data on daily life has been unprecedented. For example, such log data have been used to solve public problems, such as mass transit traffic patterns, finding optimum travelers' routes, and determining prospective business zones. However, a real-time analysis technique for GPS log data has been unattainable due to theoretical limitations. We introduced a machine learning model in order to resolve the limitation. In this paper presents a new, three-stage real-time prediction model for a person's daily route activity. In the first stage, a machine learning-based clustering algorithm is adopted for place detection. The training data set was a personal GPS tracking history. In the second stage, prediction of a new person's transient mode is studied. In the third stage, to represent the person's activity on those daily routes, inference rules are applied.

Analysis of New Transit System Effect in Large Scale Land Development Projects (대규모 택지개발지구내 신교통시스템 도입효과 분석)

  • Kim, Tae-Gyun;Chang, In-Seok;Lee, Young-Hoon
    • Land and Housing Review
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    • v.1 no.1
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    • pp.113-124
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    • 2010
  • This study is evaluating that new hi-tech transit systems each type of function and introduce applicable guideline decreases land sale price in New town and Large scale land development projects. For this, use the look-up table through the composite category of each type of system at the functional types, local characteristics. It also, As introduce the new systems calculate the Social benefits such as altered public traffic transfer system, reduced transit time and reduced carbon emission considering the three-dimensional arterial roads. As a result, New transportation systems contribute that the more reducing traffic congestion and air pollution and municipalities seeks for environment-friendly policy. However, this paper emphasize that the new transportation system has been introduce without considering the characteristics of locality and the efficient arrangement of them, it cannot be transferred the to the existing public traffic efficiently, futhermore causes the sale price in new large scale land development projects.

Development and Evaluation of Real-time Travel Time Forecasting Model: Nonparametric Regression Analysis for the Seoul Transit System (비모수 회귀분석을 이용한 실시간 통행시간 예측 기법 개발 및 평가 (서울시 버스를 중심으로))

  • Park, Sin-Hyeong;Jeong, Yeon-Jeong;Kim, Chang-Ho
    • Journal of Korean Society of Transportation
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    • v.24 no.1 s.87
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    • pp.109-120
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    • 2006
  • Since the 1st of July, 2004, the public transport system of the Seoul metropolitan area has been rearranged. In the new system, bus lines are divided into 4 classes-wide area, arterial road, branch, and rotation lines with renewed fare system based on the total distance travelled. Since central control center known as the Bus Management System (BMS) integrates the entire system operation. it now becomes feasible to collect travel information and provide it to the users scientifically and systematically. The Purpose of this study is to forecast transit travel time using real-time traffic data coming from both buses and subway. This is significant contribution since provision of real-time transit information and easy access to it would most likely boost the use of mass transit system, alleviating roadway congestion in the metropolitan area.

A Multi-Objective Shortest Paths Finding Considering Multi-Class in A Multi-Modal Transit Network for Providing User-Customized Route Information (사용자 맞춤형 대중교통 경로정보제공을 위한 다계층의 다목적 경로탐색기법 연구)

  • Lee, Mee-Young;Park, Je-Jin;Jeong, Jeom-Rae;Park, Dong-Joo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.7 no.3
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    • pp.1-14
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    • 2008
  • Mass transit information should contribute many benefits to users. Especially transportation information technology is developing highly with information technology in Korea recently. Hereafter it is expected to provide customized transportation information to users individually with the advent of ubiquitous age in earnest. This public transportation information service can be realized by path finding algorithms in public transportation networks including travel and transfer attributes. In this research, multi objectives such as travel time, transfer time, and number of transfer and so on are constructed with the primary facts influencing users. Moreover, the method reducing user's path finding alternatives arbitrarily is proposed by selecting the best alternative which provides maximum utility to users among non dominated paths. Therefore, the ultimate goal of this study proposes a multi objective shortest paths finding algorithm which can take into account multiple user classes in a transit network with multiple travel modes. The proposed algorithm is demonstrated based on the two case studies - a small toy network and the large-scaled Seoul Metropolitan subway network.

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The Extraction of Alignment Information on Railroad Using Digital Imagery (디지털 영상을 이용한 철도선형정보 추출)

  • Lee Jong-Chool;Cha Sung-Yeol;Kim Jin-Soo;Nam Il-Hyun
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2006.04a
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    • pp.271-276
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    • 2006
  • Railroads made many contribution to modernization being developed so quickly as public transportation, but after middle of 20 century, its qualities are getting low because of focusing on the investment and development of cars and airplanes. Its role which is getting the excellent merits on the mass transportation, rapid transit. safety, state period, energy efficiency, and prevention of environmental pollution has been reconsidered. Element of horizontal alignment In an existing railroad line is needed as basic materials, when it will be improved or moved. If its design drawing was lost or damaged, it is impossible to recover. It is riot easy to repair for it as disasters. We must understand an existing railroad line to bring a function included a basic geography situation. In this studies we acquire, analyze. and handle the digital picture of railroads and then reappear shape of three dimension. But also we want to contribute to establish the facilities information choosing materials of existing railroad line in outputting the alignment element by reverse.

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