• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.775-779
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• 2002

Currently, high-resolution satellite imagery such as KOMPSAT and IKONOS has been tentatively utilized to various types of urban engineering problems such as transportation planning, site planning, and utility management. This approach aims at software development and followed applications of remotely sensed imagery to transportation geographic analysis. At first, GDPA (Gradient Direction Profile Algorithm) and main modules in it are overviewed, and newly implemented results under MS visual programming environment are presented with main user interface, input imagery processing, and internal processing steps. Using this software, road network are automatically generated. Furthermore, this road network is used to transportation geographic analysis such as gamma index and road pattern estimation. While, this result, being produced to do-facto format of ESRI-shapefile, is used to several types of road layers to urban/transportation planning problems. In this study, road network using KOMPSAT EOC imagery and IKONOS imagery are directly compared to multiple road layers with NGI digital map with geo-coordinates, as ground truth; furthermore, accuracy evaluation is also carried out through method of computation of commission and omission error at some target area. Conclusively, the results processed in this study is thought to be one of useful cases for further researches and local government application regarding transportation geographic analysis using remotely sensed data sets.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.2283-2291
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• 2010

This paper evaluated the effectiveness for the case of it introduced the bimodal tram for the capital area adaptability of the bimodal tram in the limelight as the new transportation means of the next generation for capital area major transportation corridor. The KTDB with 1,142 zones was utilized for the analysis and the major transportation axis around the main road in which the traffic is high. The analysis index selected around the transportation index in which it can show up by the bimodal tram application and the decrease rate of the road traffic density, the travel time change, the carbon emission quantity change, and etc. was chosen as a result. It was analyzed as the axis in which the bimodal tram adaptability effect that it is high with the section this relative including the major analyzed result west AnSan IC~ Songsan Bridge, the SuWon terminal ~ SaDang station, the UiJungBu terminal ~ DoBongSan station, and etc. can be appeared and it was predicted that the travel demand reduction on the road of about 4~6% showed up.

• 한국도로학회논문집
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• 제16권6호
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• pp.181-189
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• 2014

PURPOSES : Ambiguous decision on whether rural or urban area for road design can increase the construction cost and restrict the land use of surrounding area. However, administrative classification on rural and urban area is not directly related to road design because of this classification is not based on the engineering viewpoint, so method which can explain the road design context is required. METHODS : Method which enables to identify the area for road design is suggested based on the deceleration expected to be experienced by drivers who use the road section concerned. Deceleration rate corresponding to the area such as rural or urban suggested in Road Design Guideline is used as the criteria to identify the area by comparing this value with the estimated deceleration rate at the road section concerned. Speed profile method is utilized to derive the deceleration rate, and speed estimation way for reflecting both road geometry and intersection is suggested using stopping sight distance concept. RESULTS : The procedure of the method application is suggested, and the design example utilizing the method is provided. CONCLUSIONS : The method is expected to be used to identify the area for road design with engineering viewpoint, and design consistency among the roads with similar driving environment can be made.

• 기술사
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• 제42권4호
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• pp.45-50
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• 2009

The modal split structure of the Korea's transportation system has been dominated by road-oriented structure. The shortage of the inftrastructure to accommodate the rapidly increasing travel demand has brought about socio-economic losses such as severe traffic congestion and high logistic costs, and thereby weakened the competitiveness of the country. Highway transportation sector is more vulnerable to energy consumption comparing with railway sector since the highway sector is dependent mostly on fossil fuels for its energy source. In 2006 annual road cogestion costs in Korea reached 24.6 trillion won, with an average annual growth rate of 5.4%. The annual road congestion cost of intercity highways were 9.2 trillion won. As the new cities that recently developed are located far from Seoul area, the boundary of commuting in Seoul metropolitan area is extended. It makes passengers have longer trips with longer travel time, and the congestion problem to be more serious. In this regards, Gyeonggi Provincial Government proposed a deeper underground metropolitan express train system for the greater Metropolitan area. which is named as GTX. Gyeonggi Province suggested 3 key underground lines, based on the outcome of the feasibility study conducted by the Korea Society of Transportation, and submitted to the Ministry of Land Transportation and Maritime Affairs for its review. If the project is approved for construction and completed in 2016, the daily volume of surface traffic bound for Seoul will be reduced substantially and therefore the users will be benefitted for time savings by an annual amount of 2 trilion won every year.

• 한국환경과학회지
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• 제21권3호
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• pp.277-287
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• 2012

The MFFn(Mass First Flush) was analyzed for various rainy events(monitoring data from 2008 to 2009) in Transportation area(Highway, National road, Trunk road). Estimated MFFn using SWMM was evaluated by comparison with observed MFFn. MFFn was estimated by varying n-value from 10% to 90% on the rainy events. The n-value increases, MFFn is closed to '1'. As time passed, the rainfall runoff was getting similar to ratio of pollutants accumulation. The result of a measure of the strength of the linear relationship between observed data and expected data under model was good ($R^2$=0.89). Pollutants runoff loads by volume showed Highway 26.6%, National road 44.8%, Trunk road 35.0% at the MFF20(20% by total runoff). A case of MFF30, pollutants runoff loads by volume showed Highway 40.2%, National road 54.3%, Trunk road 46.8%. According to the results, Initial precipitation basis were Highway MFF30, National road MFF20, Trunk road MFF30 when the Non-Point source control facilities set up.

• 한국ITS학회 논문지
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• 제20권1호
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• pp.132-145
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• 2021

본 연구는 효율적인 도로관리를 위해 이용자 중심의 핵심적인 도로망을 분석하고 개선 필요구간을 도출하고자 하였다. 기존의 도로관리는 혼잡을 바탕으로 한 관리자 중심의 다원화된 도로관리체계로 운영되어 왔다. 따라서 본 연구에서는 이용자 중심의 관점에서 여객이동, 물류이동, 관광이동 중심의 핵심도로망을 선정하였으며 서비스 수준(LOS) 분석, EPDO 사고율을 이용한 교통사고 안전성 분석, 네트워크 서비스 분석 등을 통해 개선 필요구간을 도출하였다. 이를 통해 핵심도로망 구축과 이용자 중심의 효율적인 도로 건설·관리체계 구축의 필요성을 강조하고 개선방안을 제시하였다.

• 한국지역지리학회지
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• 제19권3호
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• pp.541-550
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• 2013

인간이 원치 않는 소리로 정의되는 소음은 크게 직장소음과 환경소음으로 구분될 수 있다. 직장소음은 산업활동이 이루어지는 작업장 내에서 주로 발생하나, 환경소음은 교통, 건설현장, 심지어 이웃에 의해 발생한다. 도로교통소음은 환경소음을 배출하는 주요한 요인으로 인식되고 있고 도시지역에 부정적인 영향을 미치는 것으로 알려져 있다. 이를 고려하여, 본 연구는 미국 조지아주의 풀턴 카운티를 대상으로 토지이용별 도로교통소음의 영향을 분석하였다. 이를 위해 미국 연방 도로관리국의 소음전파모델인 교통소음모델(Traffic Noise Model)에 기반한 주 야간 소음지도를 제작하였다. 연구지역의 도로교통소음의 정도를 파악하기 위해 3단계로 구성된 토지피복 유형 자료에 각 소음지도를 중첩하여 각 토지피복 유형별 소음도를 분석하였다. 본 연구를 통해 연구지역 내 많은 필지와 건물이 허용치를 초과하는 소음에 노출된 것을 확인하였다. 특히 도로교통소음의 영향을 많이 받는 주거지역의 소음도를 줄이기 위한 방안이 마련되어야 할 것이다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1739-1742
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• 2011

Public transportation network in our country is concentrated and advanced focusing on urban area in order to secure economic feasibility. As a result, as dependence on private vehicles is relatively getting higher in public transportation vulnerable area, traffic problem occurs since the average running speed in urban area is 22.5km/h. This paper has an objective to suggest an improvement plan by selecting public transportation vulnerable area, and defining according to urban structure, formation and function, and understand traffic characteristics and draw problems. As a method selecting public transportation vulnerable area, an area with high division rate of vehicle was selected as a primary proposed site by calculating division rate of means of public transportation according to area. Final proposed site was selected by using GIS Buffering technique aiming at selected proposed site, and selecting non-benefit area 500m outside, which is the road limit distance from each subway and bus station. Lastly, the degree of improvement effect was studied by constructing imaginary public transportation network aiming at final proposed site and comparing to the amount of change in division rate of means of transportation.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권11호
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• pp.5299-5320
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• 2019

Interest in self-driving vehicle research has been rapidly increasing, and related research has been continuously conducted. In such a fast-paced self-driving vehicle research area, the development of advanced technology for better convenience safety, and efficiency in road and transportation systems is expected. Here, we investigate research in self-driving vehicles and analyze the main technologies of driverless car software, including: technical aspects of autonomous vehicles, traffic infrastructure and its communications, research techniques with vision recognition, deep leaning algorithms, localization methods, existing problems, and future development directions. First, we introduce intelligent self-driving car and road infrastructure algorithms such as machine learning, image processing methods, and localizations. Second, we examine the intelligent technologies used in self-driving car projects, autonomous vehicles equipped with multiple sensors, and interactions with transport infrastructure. Finally, we highlight the future direction and challenges of self-driving vehicle transportation systems.

• 대한교통학회지
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• 제17권3호
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• pp.21-30
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• 1999

도로교통사고의 관리는 경찰서의 주요한 업무중의 하나이다. 이를 위해 각 관할경찰서는 교통사고발생 시 사고기록을 하며 기록된 자료는 통계적 분석의 근거로 사용되게 된다. 대부분의 사고통계분석 결과는 거시적인 수준에서의 효율적인 교통관리계획과 교통안전정책을 확립하는데 적용되어 왔다. 본 연구에서는 각 관할경찰서가 지역적 특성에 따른 구체적인 교통사고 예방정책을 시행할 수 있도록 품질기능전개(QFD)를 적용하였다. 사고다발지점을 찾기 위해 군집분석을 사용하였으며, QFD의 입력자료로 사용하기 위하여 각 관할지역별로 다양한 형태의 도로교통사고를 위한 포아손 회귀분석을 하였다. 본 연구의 결과는 지역마다 특징적으로 발생하는 다양한 형태의 도로교통사고 감소에 기여할 것으로 기대된다.