Research Interests

- Network Modeling: Developing the solution techniques required to improve the efficiency and resilience of transportation networks, such as such as public transit, infrastructure, and logistics in uncertain and unpredictable conditions

- Mobility Service: Developing the real-time operation strategy of mobility services (such as car-sharing, bike-sharing, and ride-sharing) in uncertain and dynamic conditions

- User Behavior: Understanding the characteristics of transportation users’ behaviors (such as mode choice, shortest path algorithm, routing, and driving behavior)

Education

Purdue University

Aug. 2020 - Present
Doctor of Philosophy, Lyles School of Civil Engineering

Courses:
Smart Logistics (CE-597), Optimization Methods for Systems And Control (ECE-580), Introduction To Deep Learning (ECE-595)

Seoul National University

Mar. 2016 - Feb. 2018
Master of Science, Civil and Environmental Engineering

Thesis Title: A Simulation Study of Demand Responsive Transport for the Disabled to Minimize User Waiting Time

Courses:
Advanced Transportation Operations (Traffic Flow Theory), Advanced Transportation Operations (Transportation Systems Analysis), Advanced Sustainable Transportation (Traffic Management), Data Mining, Operations Research II, Transportation Optimization Techniques, Transportation Network Theory, Transportation IT Convergence System

Seoul National University

Mar. 2008 - Feb. 2016
Bachelor of Science, Civil and Environmental Engineering

Courses:
Calculus I & II, Design of Transportation Systems, Digital Computer Concept and Practice, Engineering Mathematics I & II, Introduction to Economics, Introduction to Traffic Operation, Mass Transit Engineering, Microeconomics, Operations Research I, Principles of Economics I & II, Spatial Informatics and Systems, Statistics, Statistics for Civil & Environmental Engineers, Traffic Engineering and Lab., Transportation Planning and Lab., Urban Planning

Research Experience

Research Assistant

Aug. 2020 - Present
Lyles School of Civil Engineering, Purdue University

- Design optimal strategies of COVID-19 vaccine distribution using demand forecasting and optimization

Researcher

Jan. 2020 - Aug. 2020
Institute of Engineering Research, Seoul National University

- Led a study on designing a cluster-based route of multi-capacity vehicles of a demand responsive transport service for the disabled and analyze the quantitative effects of shared parking services & last-mile mobility services

- Contributed to the preparation grant proposals for government-funded research projects

Researcher

Mar. 2018 - Dec. 2019
Institute of Construction and Environmental Engineering, Seoul National University

- Developed optimal operation strategies of Mobility-as-a-Service (MaaS) for the mobility impaired (such as disabled or elderly people)

- Collaborated and coordinated with faculty members, businessmen, researchers, and fellow graduate students across institutes to develop proposals (with University of Seoul, Radius Corporation, Korea Land & Housing Institute)

Research Assistant

Mar. 2016 - Feb. 2018
Department of Civil and Environmental Engineering, Seoul National University

- Designed a real-time relocation strategy for one-way car-sharing and developed an event-based simulation for one-way car-sharing services

- Led a study on improving demand responsive transport service for the disabled with shared mobility in Seoul and led a study on developing an evaluation method to evaluate drivers’ behaviors with surrogate safety measures

- Collaborated and coordinated with faculty, businessmen, and researchers at the Korea Transport Institute, Korea Transportation Safety Authority, and InnoSim

Teaching & Mentoring Experience

Teaching Assistant

Jan. 2021 - Present
Lyles School of Civil Engineering, Purdue Univeristy

- Assist in preparing and teaching course material, answer questions, and mark assignments

Course:

  • Data Science for Smart Cities - CE597 (Spring 2021, Graduate), [edX]

Lecturer, Introduction to Civil and Environmental Engineering

Nov. 2019
Department of Civil and Environmental Engineering, Seoul National University

- Taught transportation engineering and trends of mobility services to 50 undergraduate students

- Covered areas of transportation engineering, status and issues of transportation in South Korea, future sustainable transportation systems, and transportation laws in South Korea

Mentor, Youth Engineering Frontier Camp

Aug. 2017, Feb. 2018
College of Engineering, Seoul National University

- Taught traffic engineering and the basic theory of traffic flow to 10 high school students

- Advised students concerning preparing for admission to universities and consulted with the students about the difficulties they encountered in high school

Teaching Assistant

Sep. 2016 - Dec. 2017
Department of Civil and Environmental Engineering, Seoul National University

- Assisted in preparing and teaching course material for core subjects of transportation in undergraduate and graduate program, had office hours every week, answered questions in person, and marked assignments & exams

- Supervised undergraduate student’s projects in terms of analyzing smart-card data, implementing clustering algorithms, and visualizing GPS data

Course:

  • Sustainable Transportation Systems (Fall 2017, Undergraduate)
  • Advanced Transportation Operation (Spring 2017, Graduate)
  • Leadership for Civil Engineers (Spring 2017, Undergraduate)
  • Introduction to Transportation Engineering (Fall 2016, Undergraduate)

Publications (Journal)

2. Implementing Surrogate Safety Measures in Driving Simulator and Evaluating the Safety Effects of Simulator-Based Training on Risky Driving Behaviors [link]
Eunhan Ka, Do-gyeong Kim, Jooneui Hong, Chungwon Lee
Journal of Advanced Transportation (2020)
1. Evaluation of the Rain Effects on Gap Acceptance Behavior at Roundabouts by a Logit Model [link]
Dongmin Lee, Sooncheon Hwang, Eunhan Ka, Chungwon Lee
Journal of Advanced Transportation (2018)

Publications (Conference Proceeding)

9. A Cluster-Based Route Design of Multi-Capacity Vehicle in Large-Scale Demand Responsive Transport Service for the Disabled
Eunhan Ka, Dongju Ka, Yeonwoo Jung, Chungwon Lee
99th Annual Meeting of the Transportation Research Board, Washington DC, United States (2020)
8. Analysis of Status in DRT Service for the Disabled in Seoul and Comparison Domestic and Foreign Cases
Eunhan Ka, Doosun Hong, Yejin Na, Chungwon Lee
International Conference for Road Engineers, South Korea (2018)
7. Selection of Appropriate Hyperparameter for Waiting Time Prediction Model for Demand Responsive Transport for the Dsiabled in Seoul Using Long Short-Term Memory (LSTM) Network
Doosun Hong, Eunhan Ka, Sunghyun Ha, Chungwon Lee
The 78th Korean Society of Transportation Conference, South Korea (2018)
6. Application of Deep Learning for Demand Forecasting of Call Taxi for the Handicapped in Seoul
Eunhan Ka, Sunghyun Ha, Jooneui Hong, Chungwon Lee
The 77th Korean Society of Transportation Conference, South Korea (2017)
5. A Preliminary Study of Comparison with Lane Changing Model Parameters in Merging Area between Normal and Raining Conditions
Eunhan Ka, Sunho Kim, Jooneui Hong, Chungwon Lee
The 12th International Conference of Eastern Asia's Society for Transportation Studies (EASTS), Vietnam (2017)
4. The Importance of Demand Prediction for Vehicle Relocation Strategy Development in One-way Car-sharing System
Eunhan Ka, Dongjoon Woo, Chungwon Lee
The Third International Conference on Computational Science and Engineering, Vietnam (2016)
3. An Estimation of Critical Gap for Gap Acceptance Model Applied to Lane Change of Surrounding Vehicles in Driving Simulator
Eunhan Ka, Sunho Kim, Dongjoon Woo, Chungwon Lee
The 2016 Fall Korea Institute of ITS Conference, South Korea (2016)
2. Comparison of Survival Model of Traffic Flow Deterioration due to Traffic Accident according to VDS Aggregation Level
Eunhan Ka, Sanghyup Lee, Jaeyoung Lee, Chungwon Lee
The 75th Korean Society of Transportation Conference, South Korea (2016)
1. Analysis of Traffic Flow Impacts of Highway Traffic Accidents Using Survival Analysis
Sanghyup Lee, Hyunkyung Lee, Jaeyoung Lee, Eunhan Ka, Chungwon Lee
The 74th Korean Society of Transportation Conference, South Korea (2016)

Awards & Honors

Outstanding Paper Award

Mar. 2018
The 78th Conference of Korean Society of Transportation, Korea Society of Transportation

Title: Selection of Appropriate Hyperparameter for Waiting Time Prediction Model for Demand Responsive Transport for the Disabled in Seoul using Long Short-Term Memory (LSTM) Network

Lecture & Research Scholarship

Sep. 2016 - Feb. 2017
Department of Civil and Environmental Engineering, Seoul National University

Brain Korea 21 Plus Scholarship

Mar. 2016 - Aug. 2016
National Research Foundation of Korea

Need-based Scholarship

Mar. 2016
Department of Civil and Environmental Engineering, Seoul National University

Outstanding Paper Award

Feb. 2016
The 74th Conference of Korean Society of Transportation, Korea Society of Transportation

Title: Analysis of Traffic Flow Impacts of Highway Traffic Accidents Using Survival Analysis

Alumni Association Scholarship

Oct. 2015
Alumni Association of Department of Civil Engineering, Seoul National University

Bronze Award

Jun. 2013
The 6th Science and Technology Writing Excellent Research Paper Presentation Competition, College of Engineering, Seoul National University

Title: Estimation of Rainfall in Seoul using FARD2006

Programming Skills & Proficiency

R

Java (w/ CPLEX)

Python (w/ Tensorflow)

MATLAB