Article
Engineering, Civil
Younshik Chung, Wilfred W. Recker
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2015)
Article
Engineering, Civil
Younshik Chung, Yoon-Hyuk Choi, Byoung-Jo Yoon
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2018)
Article
Green & Sustainable Science & Technology
Younshik Chung
Article
Economics
Rahul Swamy, Jee Eun Kang, Rajan Batta, Younshik Chung
SOCIO-ECONOMIC PLANNING SCIENCES
(2017)
Article
Environmental Sciences
Younshik Chung, Tai-Jin Song
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2018)
Article
Green & Sustainable Science & Technology
Younshik Chung, Minsu Won
Article
Management
Laiyun Wu, Jee Eun Kang, Younshik Chung, Alexander Nikolaev
Summary: Collecting individual travelers' Origin-Destination (OD) information is crucial for public transit systems to provide calculated services; accurate estimation of route choice model parameters can help assess service levels. Knowledge of OD links and route choice logic is especially important for emerging mobility services.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2021)
Article
Chemistry, Analytical
Hoe Kyoung Kim, Younshik Chung, Minjeong Kim
Summary: The study found that while the enhanced functions of the ADAS camera did not significantly impact the accuracy of traffic state estimates, the distance for vehicle identification and number of lanes did not always guarantee better estimations. It is recommended that relevant parameters and their range be carefully selected to ensure a certain level of accuracy for traffic state estimates.
Article
Transportation
Heewon Lee, Jisun Lee, Younshik Chung
Summary: This study aims to analyze the potential of using vehicle sensors to estimate traffic density in future traffic environments through simulation experiments. The research developed software modules, conducted traffic simulation experiments, and evaluated the performance of front and rear radar sensors compared to camera sensors. The results showed that front and rear radar sensors performed best, especially in low probe vehicle ratio situations, while camera sensors could be an important alternative in high sensor-equipped vehicle ratios and congested traffic conditions.
JOURNAL OF INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Green & Sustainable Science & Technology
Laiyun Wu, Samiul Hasan, Younshik Chung, Jee Eun Kang
Summary: The study analyzed a large-scale Automatic Fare Collection dataset of Seoul, South Korea's transit system, identifying variations in mobility patterns across user characteristics and modal preferences. The findings showed the heterogeneity of mobility patterns among demographic user groups, which will significantly impact future mobility models based on trajectory datasets.
Article
Ergonomics
Younshik Chung
Summary: This study analyzed the injury severity of two-wheeler (TW) riders in taxi-TW crashes using accurate crash data collected by taxis equipped with IVVR devices. Seven variables were found to significantly affect injury severity, including crash speed, second collision, and Delta-V.
ACCIDENT ANALYSIS AND PREVENTION
(2022)
Article
Transportation
Younshik Chung, Sanggi Nam
Summary: This study explores the concept of travel time expenditure using mobile phone signaling data and achieves better spatiotemporal precision than traditional household survey data. However, collecting and cleaning the raw data requires tremendous effort.
TRAVEL BEHAVIOUR AND SOCIETY
(2024)
Proceedings Paper
Transportation
Younshik Chung, Tai-Jin Song, Juyoung Kim
ADVANCES IN HUMAN ASPECTS OF TRANSPORTATION
(2018)
Article
Ergonomics
Younshik Chung
ACCIDENT ANALYSIS AND PREVENTION
(2018)
Article
Green & Sustainable Science & Technology
Jinwoo (Brian) Lee, Sunhyung Yoo, Hyun Kim, Younshik Chung
INTERNATIONAL JOURNAL OF SUSTAINABLE TRANSPORTATION
(2018)