서울 광역권 통합거리비례 요금제를 위한 적절한 모형 선택에 관한 연구

육동형 한국철도학회 2015 철도저널 Vol.18 No.4

도로 이용자의 Smart Mobility 평가 척도 개발 – 형평성을 중심으로 -

육동형,백정한 한국도로학회 2021 한국도로학회논문집 Vol.23 No.2

PURPOSES : The aim of this study is to develop equitable smart mobility indicators for road infrastructure users based on the recognition of lack of social equity evaluation indicators from the perspective of road infrastructure users. METHODS : In this study, vertical equity was expressed as the ratio of tolls to users' willingness to pay, depending on the income level. In each area, the time of travels to frequent destinations may differ, depending on the road infrastructure configuration use of tolled and untolled roads. When using tolled roads to save travel time, users have to pay tolls. In this case, the number of tolls that users have to pay and the users’ willingness to pay for tolls in the area based on their income levels were compared to determine vertical equity differences. Here, users' willingness to pay was estimated through a questionnaire survey on the travel time value based on the income level and matched with the income level of the area to determine residents' willingness to pay in the area. RESULTS : This study reveals that there is a significant difference in social equity for road infrastructure use based on income level. This difference in the indexing was reflected in developing an indicator based on distribution equity. CONCLUSIONS : The proposed vertical equity assessment method is relatively simple and can be utilized as a tool for establishing policies. As a basic tool for analyzing vertical equity in road pricing, it can be effectively applied to analyzing the vertical equity of road users in countries such as Japan, where tolls for highways are very high, and the United States, where tolls are charged in forms of Turnpike and HOT.

하이퍼 루프(Hyperloop)와 자율주행으로 인한 미래 교통 혁명

육동형,Yuk, Dong-Hyeong 한국철도학회 2017 철도저널 Vol.20 No.4

고속도로 졸음쉼터의 전략적 설치 방안에 관한 연구

육동형 한국도로학회 2022 한국도로학회논문집 Vol.24 No.4

PURPOSES : The purpose of this study is to understand the effect of installing highway rest areas reflecting continuous driving time as a factor that can affect drowsy driving. METHODS : In this study, various models were tested for representing the effect of reducing accidents of highway rest areas. Among the various models including negative binomial, a series of the zero-inflated models reflecting accidents, the zero-inflated model showed the best suitability. RESULTS : According to the results of the zero inflated negative binomial model, installation of highway rest areas was found to have an accident reduction effect of approximately 11.93%. This is somewhat lower than the accident reduction effect estimated in previous studies. In addition, variables related to continuous driving time were found to affect accidents caused by drowsy driving. CONCLUSIONS : Basically, by using the continuous driving time index, a vehicle that has been driving continuously for more than 2 hours or if the continuous driving time is increased for more than 2 hours, the probability of accidents increases. However, in the case of trucks, a more in-depth study is needed on whether an increase in trucks induces defensive driving of other vehicles and this causes a reduction in accidents. Thus, it is necessary to use the variable cautiously for the highway rest area installation plan.

SOC스톡 국제비교 방법론 개선방안 연구

육동형 대한교통학회 2016 대한교통학회 학술대회지 Vol.75 No.-

최근 우리나라의 인프라 스톡이 선진국 수준에 근접하였다는 의견이 제기되고 있다. 실례로, 기획재정부는 우리나라의 인프라 수준은 (국토면적당 도로 스톡 기준, G20국가 中) 상위권에 속함을 근거로 예산을 축소하고 있는 실정이다. “그간 축적된 SOC 스톡 등을 감안하여 SOC 투자규모는 단계적으로 정상화를 추진하고, 투자 효율성 제고에 중점” (2015 ∼ 2019년 국가재정운영계획(pp.35) 中) 그러나, 이러한 단순 비교를 바탕으로 SOC 스톡의 과•부족을 판단하는 것은 국제비교가 분석에 이용되는 지표 및 비교 국가 그룹의 상대성으로 인해 야기할 수 있는 일관적인이지 못한 결과 도출의 가능성을 고려치 못한 사례일 수 있다. 실제로, 국토면적당 도로 스톡이 아닌 인당 도록 스톡을 비교하면 우리나라의 순위는 G20 국가 중 하위권에 위치하고 있으며, 비교 국가 그룹을 G20가 아닌 경제개발협력기구 (OECD)국가로 제한하면 우리나라의 스톡수준은 아직 선진국 수준에 미치지 못하고 있다. 이와 같이, 국제비교는 이해가 쉽고 분석 방법이 단순한 장점이 있지만, 분명히 한계도 존재함으로 본 연구에서는 이러한 한계를 지적하고 합리적인 국제비교를 위한 개선방향에 대해 논의한다.

Identification of the Factors Contributing to the Relaxed Convergence Conditions for Asymmetrically Formulated Network Equilibrium Problems

육동형 한국도로학회 2021 한국도로학회논문집 Vol.23 No.4

PURPOSES : This study aims to investigate the factors that affect the practical condition of the convergence and convergence behaviors of the asymmetric transportation equilibrium problem (ATEP). METHODS : To achieve this objective, a real network experiment is critical because the crux of the problem associated with the ATEP is the difficulty of verifying the unique condition in real networks owing to asymmetric modeling. The study employed a numerical approach to deal with this problem because analytical derivation based on small networks has a limitation in extending its findings to practical applications. The study addressed the problems using large real networks and different types of interactions, including links and modes. An investigation of the factors that have the potential to affect the convergence of the problem was conducted with the solution algorithm, which is the double projection method. RESULTS : The study presented a partial answer to the question of whether the ATEP's convergence condition is too strong. In link interactions, demand intensities and symmetric features within the cost function along with the network configuration were determined to relax the convergence condition. In mode interactions, the degree of overlap of the route composition and the controlled asymmetric interactions in the cost function were determined to affect the convergence condition. CONCLUSIONS : The results suggested that the modeling of link interactions for a more complicated transportation system design enabled the modeling of complex asymmetric interactions as long as the demand intensity of the network was not strong. In the case of mode interactions, whereas it was not possible to control the route composition, it was considered possible to a degree where the use of a distinct route was observed for each class (for example, designated truck lanes).

우리나라 도로 인프라의 지역별 공급수준 평가에 관한 연구

육동형 대한교통학회 2018 대한교통학회 학술대회지 Vol.78 No.-

본 연구에서는 상당기간 지속된 도로 인프라 공급을 단순 시설수준 지표가 아닌 해당 지역에 존재하는 도로 인프라에 대한 수요와 공급을 동시에 고려하는 측정지표를 개발하여 지역별 도로 인프라 공급수준을 평가하였다. 기존의 인당 연장, 면적당 연장 등과 같은 단순 지표로는 현재까지 수행된 인프라 구축에 대한 성과를 제대로 측정하는데 한계가 있어, 그 대안으로 교통수요와 그에 대한 적절한 공급이 이루어졌는가를 나타내는 도로 서비스 수준 지표로 도로 인프라 공급수준을 평가하는 방법을 제안하였다. 본 연구에서 제안한 지역의 도로 공급수준 산정 방식을 우리나라 252개 시군구에 적용하여 시군구별 도로 서비스 수준을 평가하였다. 그 결과, 서울특별시를 포함하여, 경기도 일대 주변 위성도시, 주요 5대 광역시 도심부의 도로 서비스 수준이 매우 열악한 것으로 분석되었으며, 광역시를 제외한 지방지역일수록 도로 서비스 수준이 점차 양호해지는 경향을 나타내었다. 이외의 지역은 (강원도 대부분 지역, 전라 남북도 일부 지역, 경상북도 일부지역) 모두 도로 서비스 수준이 양호한 것으로 드러났다.

대중교통 차량 내 혼잡완화 편익산정 방법론에 관한 연구

육동형,백정한 대한교통학회 2019 대한교통학회 학술대회지 Vol.81 No.-

재난대비 방재도로 선정을 위한 방향 설정연구

육동형,남지현,이준 한국도로학회 2019 한국도로학회논문집 Vol.21 No.5

PURPOSES : Korea is extremely vulnerable to the effects of climate change and earthquakes. When disasters occur, road infrastructure becomes a vital carriageway for moving people, emergency resources, and rescue teams. By designating disaster response routes in advance, the effect of the disaster can be reduced by ensuring a secure and quick moving space for emergency resources and relief activities. However, Korea has not established disaster response routes yet. Thus, this paper aims to prescribe guidelines to select appropriate disaster response routes by using Space Syntax while assuming a flooding disaster, as they occur most frequently and cause the biggest damage in terms of the recovery cost. METHODS : Based on the literature review, there are various approaches to selecting disaster response routes such as vulnerability, reliability, and redundancy based analyses. This study adopts the vulnerability-based approach, where the most vulnerable sections of roadway are selected for the disaster response route. RESULTS: We successfully developed guidelines for selecting a disaster response route assuming a flooding disaster. CONCLUSIONS: The analysis of the disaster response route indicated that the pre-determined disaster response route could minimize the damage due to the disaster, as it provides basic mobility and facilitates the swift movement of refugees and rescue teams.

지역별 도로 공급 수준 측정에 관한 연구

육동형 대한교통학회 2018 교통 기술과 정책 Vol.15 No.3