• The Magazine of the IEIE
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• v.24 no.2
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• pp.41-49
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• 1997

본 논문에서는 전자, 통신, 제어, 컴퓨터공학 등의 첨단기술을 교통공학에 응용하여 기존의 도로 효율성을 극대화 시키는 방안으로 제시되고 있는 첨단 교통체계(ITS)연구의 기반시스템인 지능형 교통관리체계(ATMS)의 시스템 구성 및 제공서비스를 개관하였다. 연구범위는 ATMS의 개념 및 정의, 시스템의 기능적 요구사항 및 기본구상, 그리고 제공서비스의 종류를 살펴보았다. 향후 지능형 교통관리체계는 대도시 교통 소통을 완화시키는 방안으로서 도시가로에 영향을 미치는 교통정보 제공시스템, 주행안내시스템, 대중교통 및 화물운송 체계 등과 연계되는 종합교통체계 구축의 기반이 될 것으로 기대된다.

• Transportation Technology and Policy
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• v.8 no.1
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• pp.101-103
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• 2011

• Transportation Technology and Policy
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• v.5 no.3
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• pp.132-135
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• 2008

• Spatial Information Research
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• v.20 no.3
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• pp.83-93
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• 2012

Recent environmental concerns have made interest in environment-friendly transportation means such as walking, biking, and public transportation. However, since it is difficult to move long distance by walking or biking, their scope of application is rather limited. On the other hand, public transportation can solve traffic congestion, a recent social issue, though its usability may depend on its time schedule. Currently available information services on public transportation in the Web do not reflect well such traits of the public transportation; thus, in some cases, they may provide wrong information to end users. To solve such problems and provide information based on timetable of public transportations, this paper proposes a STP(Space Time Point) data model. Unlike existing space-time data models, this model recognizes the bottommost element of an object as a point and structures these points in hierarchical way to define an object. In particular, It can make it possible to implement a variety of dynamic spatial objects changing object information according to time. An objective of this study is to design a STP model for bus and subway based on timetables of public transportation in Daejeon area and builds a system to provide path navigation. With the designed navigation function, a path from the Daejeon National Cemetery to Hannam University was searched by time slot. The result showed that the system provided different paths by time, as the system guided different paths when bus operation was limited in midnight. As existing data model could not provide such results, it is confirmed that the system can provide path navigation based on real-time traffic information. It is expected that based on such functionality, it is possible to provide additional functionalities by applying diverse data models such as real-time transport information or traffic history information.

• Proceedings of the KIEE Conference
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• 2006.10d
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• pp.25-27
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• 2006

도심 공간의 활용 극대화, 택시 수준의 편의성, 환경친화성을 가진 미래형 대중교통 시스템에 대한 검토와 더불어 양질의 교통 서비스를 제공할 수 있는 새로운 미래형 교통수단 확보로 국민 삶의 질 향상 도모하고 소형궤도열차시스템에 대한 Global Standard를 창출하여 세계기술 선도 및 세계시장 진출기반 확보하는 측면에서와 승객의 쾌적성, 프라이버시 보장 등의 측면에서 타 시스템에 비해 높은 편익의 발생과 교통약자 및 서비스 낙후지역에 대중교통의 door to door 서비스 제공이 가능한 시스템의 개발이 필요함에 따라 최상위 개발시스템을 정의하여 시스템 요구사항 및 목표사양을 도출하였으면 이를 토대로 개발전략을 수립하였다.

• Broadcasting and Media Magazine
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• v.24 no.1
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• pp.49-55
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• 2019

최근 수년간 급속도로 발전한 정보통신(ICT) 및 인공지능(AI) 관련 기술은 사회전반에 걸쳐 모든 산업영역에 변화의 바람을 불러일으키고 있다. 교통부문에서도 이러한 기술의 융 복합을 통해 교통체계의 효율성과 안전성을 향상시키기 위한 노력이 자율주행의 기술발전으로 나타나고 있다. 자율주행은 그동안 인간이 운전해오던 자동차 중심의 교통체계에 혁신적인 변화의 동인이 될 것으로 전망된다. 개인 승용차 시장에 자율주행자동차의 등장과 버스, 택시 등 대중교통과 공유교통차량의 대중교통 기능 적용, 그리고 트럭 및 대형버스 등 상용차의 군집주행기술 도입 등 다양한 분야에서 산업화가 진행되고 있는 것이 그 이유다. 이로 인해 시민들의 일상생활에서 가장 중요한 부분을 차지하는 이동성(Mobility)을 제공하는 서비스에 상당한 영향을 줄 것으로 예측되고 있다. 본 고는 자율주행이 가져올 미래 교통체계의 변화로 대변되는 스마트 모빌리티에 대한 기술과 서비스 방향에 대해 진단하고, 효율적인 산업화를 위한 방안을 제시한다.

• Journal of Korean Society of Transportation
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• v.23 no.8 s.86
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• pp.7-17
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• 2005

Transportation is from an individual mobility. Various efforts to propose specific values or the individual mobility have been conducted in diverse transportation environment. However, mobility studies for multimodal public transportation are rare especially on not the range of line but area. This study propose a method to calculate transit mobility indices as expanding mobility analysis from point-to-point to area-to-area, considering access time to transit facility, running time and transfer time of passengers. To extract mobility indices, we included walking as a lowest category of mode and set passenger car as a competitive mode to transit mode. This study propose three public transportation mobility indices as 1) how competitive public transportation facility is offered against passenger car 2) how convenient transit mode including walking is provided against passenger car from origin to destination and 3) how many various paths are presented to support passenger's travel between regions. These indices are tested on the Seoul metropolitan area with 10 lines of urban rail and about 420 lines of bus. In addition, we proposed two political applications of proposed mobility indices to increase public transportation mobility between two regions and to maximize the mobility of study area when a line is added in the area.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.1
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• pp.28-41
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• 2012

The User-Oriented Public Transit Service provide public transit service through media devices, such as mobile, BIT and In-vehicle display devices, which considered user's individual characteristics and specific preference anytime and anywhere. The objective of this study is to develop and improve the services in the three media devices. This study applied user-satisfaction analysis in evaluating the service in Busan, analyze factor affecting the level of service user's satisfaction, and draw remedies based on the analysis results. The user's satisfaction average values in each media are 3.29 mobile, 3.62 BIT, and 4.05 In-vehicle display devices. Overall satisfaction average value 3.54 on the service showed a positive reaction from the survey participants. The important factor affected on general satisfaction of the User-Oriented Public Transit Service is "In-vehicle display devices" scored .632 (standardized coefficient) by categorical regression analysis. But users prefer to further improve the service environment rather than to add service information because they are already contented with the information they are getting. Furthermore, this study suggested ways of improving the User-Oriented Public Transit Service based on the satisfaction analysis results from the user's perspective.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.12
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• pp.4795-4802
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• 2010

In order to solve the traffic problem in jeju, we must reduce demand for car travel. In addition, demand for passenger travel by public transport policy is needed for conversion. And to improve the quality of public transport services are desperately needed. The purpose of this study, personal characteristics of the trip traveler and the relationship between transportation choice, and personal effectiveness as a factor in travel costs and travel time on the impact of transportation choices will investigate. Restructure its public transportation routes, when to switch to buses to car traffic on the data as a basis for the factors that may be. In addition to improving the quality of public transport services is expected to be able to contribute. To study the performance of the May 2010 survey was conducted. And multinominal logit model were conducted. According to the analysis, People who own homes and families with more than 5 people are likely to use cars. If a prolonged travel time is likely to use buses. However, increasing the cost of travel increases the likelihood that the car is available.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.797-800
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• 2003

개방형 LBS 플랫폼의 등장은 다양한 플랫폼을 가진 이동 통신 업체들 사이의 위치정보 연동을 용이하게 할뿐만 아니라, 위치정보를 이용하는 다양한 LBS 응용 솔루션 개발을 가능하게 하였다. 본 논문은 이러한 개방형 LBS 플랫폼과 연동하여 대중교통정보를 모바일 클라이언트에 제공하는 웹 서비스 솔루견을 제안 구현한다.