Research

Journal Publications

Park, S.-Y., Ham, S. W., & Kim, D.-K. (2023). User Segmentation Based on Travel Regularity in E-Scooter Sharing Service. Transportation Research Record, 0(0). https://doi.org/10.1177/03611981231152256

Working Papers

Park, S.-Y., Joo, Y.-J., & Kim, D.-K.*. Order Dispatching in Ride-pooling with Walking Points Search. Transportation Research Record [In Revision]

Conference Papers

Park, S.-Y. & Kim, D.-K.* (2022, Sep 28-30). Developing Alternate Pick-up and Drop-off Points Search Algorithm for Travel Delay Reduction in Ride-pooling Service [Oral Presentation]. The 40th Anniversary International Conference on Korean Society of Transportation, Seoul, Korea.
Park, S.-Y. & Kim, D.-K.* (2022, June 15-18). E-scooter Route Choice Model Using Recursive Logit Model [Oral Presentation]. International Conference on the Korea Institute of Intelligent Transport Systems, Jeju, Korea.
Park, S.-Y., Ham, S.-W., & Kim, D.-K.* (2022, January 9-13). User Segmentation based on Travel Regularity in
E-scooter Sharing Service [Poster presentation]. Transportation Research Board 101st Annual Meeting, Washington D.C., United States.
Park, S.-Y., Ham, S.-W., & Kim, D.-K.* (2021, April 22-23). Travel Pattern Regularity of Shared Micro-Mobility Passengers Using Spatio-Temporal Clustering [Oral Presentation]. Conference on the Korea Institute of Intelligent Transport Systems, Gananeung, Korea.

Micro-mobility

With the aim of enhancing first/last-mile mobility, this research suggests user segmentation method based on travel regularity in e-scooter sharing service and analyzes their usage characteristics. It contributes to gaining a deeper insight into

e-scooter riders' usage characteristics revealed by individual trip records.

Presented in Transportation Research Board 101st Annual Meeting.
Under review by Transportation Research Record
Adopted as a market sustainability metric by Deer mobility.

Ride-sharing

This study focuses on rider-participating dispatch in ride-pooling services by searching walking points where riders walk to or from their origins and destinations. The simulation results shows that walking can substantially enhance operational efficiency, mitigating the supply-demand imbalance with limited fleets. The proposed model can also be utilized in optimizing the meeting points for various high-capacity vehicles.

Presented in Transportation Research Board 102nd Annual Meeting
Received the Best Paper Award in TRB
Under review by Transportation Research Record