Dr. Kai Yuan, Ph.D.
Seeking smart solutions to transport problems!
Dr. Kai Yuan holds an associate professorship at the department of Transport and Logistic Engineering, Hefei University of Technology, Hefei, China. He is officially affiliated with Delft University of Technology as a researcher, Delft, The Netherlands. His general activities relate to traffic and transportation system modelling and optimisation.
Research key words: Traffic flow theory, Traffic flow modelling, Capacity drop, Macroscopic Fundamental Diagram (MFD), Traffic control, Multi-class traffic dynamics, Multi-modal transportation system
Working Experiences
April. 2020-Present. Associate professor
Hefei University of Technology, Hefei, China
September. 2020-July.2021 Researcher
Delft University of Technology, Delft, The Netherlands
April.2018-April.2020 Postdoc researcher, working with Prof. Hans van Lint & Dr. Victor Knoop
Department of Transport & Planning
Delft University of Technology, the NetherlandsJanuary.2017-March.2018 Postdoc researcher, working with Prof. Hong Lo
GREAT Smart Cities Institute
Hong Kong University of Science and Technology, Hong KongNovember.2015-February.2016 Visiting Ph.D. candidate, advised by Dr. Jorge Laval
Traffic Lab in School of Civil & Environmental Engineering
Georgia Institute of Technology, U.S.A
Education Experiences
September. 2012-December. 2016
Ph.D., advised by Prof. Serge Hoogendoorn & Dr. Victor Knoop
Delft University of Technology, Delft, The Netherlands
Dissertation: Capacity drop on freeways: traffic dynamics, theory and modelling
September.2010-July.2012
M.Eng. in Traffic and Transportation Planning and Management, advised by Prof. Wei Guan (关伟 教授)
School of Traffic and Transportation
Beijing Jiaotong University, Beijing, China
September.2006- July.2010
B.Eng. in Traffic and Transportation
School of Traffic and Transportation, Beijing Jiaotong University, Beijing, China
Publications
Journal Articles
- Yin, Z., Yuan, K.* and Zheng S. (2024) Optimization of traffic flow by allowing private cars to merge into the bus lane at specific locations, Journal of Advanced Transportation
- Yuan, K.* and Knoop, V.L. (2023) Hysteresis and the Unobserved Congestion Branch in the Macroscopic Fundamental Diagram: Theoretical Considerations and Modeling, Journal of Advanced Transportation, vol. 2023, Article ID 8797109, 15 pages.
- Yuan, K., Cui Dandan and Long, Jiancheng (2023) Bus frequency optimization in a large-scale multi-modal transportation system: Integrating 3D-MFD and dynamic traffic assignment, Digital Transportation and Safety, 2:1−13 doi: 10.48130/DTS-2023-0020.
- Guo, J.Q., Long, J.C., Xu, X.X., Yu, M. and Yuan, K. (2022) The vehicle routing problem of intercity ride-sharing between two cities. Transportation Research Part B: Methodological, 158:113-139.
- Yuan, K.*, and Lo K.Hong (2021) Multi-class traffic flow dynamics: an endogenous model. Transportation Science, 55(2):456-474.
- Yuan, K.*, Knoop, V.L., and Hoogendoorn, S.P. (2019). Multi-class traffic flow on a partially space-shared road. Transportmetrica-B, 7(1):1505-1520.
- Yuan, K.*, Laval, J., Knoop, V.L., Jiang, R., and Hoogendoorn, S.P. (2019). A Geometric Brownian motion car-following model: towards a better understanding of capacity drop. Transportmetrica-B, 7(1):915-927.
- Yuan, K.*, Knoop, V.L., and Hoogendoorn, S.P. (2017) A microscopic investigation into the capacity drop: impacts of longitudinal behavior on the queue discharge rate. Transportation Science, 51(3):852-862.
- Yuan, K.*, Knoop, V.L., Leclercq, L., and Hoogendoorn, S.P. (2017) Capacity drop: a comparison between stop-and-go wave and standing queue at lane-drop bottleneck. Transportmetrica-B. 5(2):145-158.
- Yuan, K.*, Knoop, V. L., and Hoogendoorn, S.P. (2016). A kinematic wave model in Lagrangian coordinates incorporating capacity drop: application to homogeneous road stretches and discontinuities. Physica A: Statistical Mechanics & Its Applications, 465:472-485.
- Yuan, K.*, Knoop, V.L., and Hoogendoorn, S.P. (2015). Capacity drop: relation between the speed in congestion and the queue discharge rate. Transportation Research Record: Journal of the Transportation Research Board, 2491(2491): 72-80. (Poster here).
- 袁凯,关伟*. 城市快速路交通流车头时距分布特性分析 [J]. 交通运输系统工程与信息, 2011, 11(6):68-73. (in Chinese. English translation: Time-headway Distribution Features on Urban Freeway).
* indicates the corresponding author.
Peer reviewed book contributions
- Yuan, K.*, Knoop, V.L., Van Lint, J.W.C. (2020) Departure rates optimization and perimeter control: comparison and cooperation in a multi-region urban network. Proceedings of Traffic and Granular Flow 2019, pp: 597-603. Editors: Iker Zuriguel, Angel Garcimartin, Raul Cruz.
Peer Reviewed Conference Contributions
- Yuan, K. (2023) Nature of urban traffic delays: understanding and modeling urban congestion dynamics and its determinants Modeling. TFTC summer meeting 2023, Amsterdam, the Netherlands.
- Yuan, K., Knoop, V.L. and Van Lint, J.W.C. (2020) Matching the Macroscopic Fundamental Diagram with Demand Profiles: From a Perspective of Departure Time Choice Behavior. The 99th Annual Meeting of the Transportation Research Board. (See poster here)
- Yuan, K. and Hong K.L. (2017) Multi-lane multi-class traffic flow dynamics. The 22nd international conference of Hong Kong society for transportation studies, Hong Kong.
- Wang, S.L., Yuan, K. and Hong, K.L. (2017) Modeling freeway travel time distribution considering moving bottlenecks: an analytical approach. The 22nd international conference of Hong Kong society for transportation studies, Hong Kong.
- Yuan, K., Laval, J., Knoop, V.L., Jiang, R., and Hoogendoorn, S.P. (2017) A Geometric Brownian motion car-following model: towards a better understanding of capacity drop. The 96th Annual Meeting of the Transportation Research Board, Washington D.C., U.S.A.
- Yuan, K., Knoop, V.L., and Hoogendoorn, S.P. (2016) A Microscopic Investigation into the Capacity Drop: Impacts of Bounded Accelerations and Reaction time. The 95th Annual Meeting of the Transportation Research Board, Washington D.C., U.S.A.
- Yuan, K., Knoop, V.L., and Hoogendoorn, S.P. (2016) Optimal dynamic green time for distributed signal control, 2016 IEEE 19th International Conference on Intelligent Transportation Systems (ITSC), Rio de Janeiro, 2016, pp. 447-451. doi: 10.1109/ITSC.2016.7795593.
- Yuan, K., Knoop, V.L., Schreiter T. and Hoogendoorn, S.P. (2015) A Hybrid Kinematic Wave Model Incorporating Capacity Drops. 2015 IEEE 18th International Conference on Intelligent Transportation Systems - (ITSC 2015), Spain.
- Yuan, K., Knoop, V.L. and Hoogendoorn, S.P. (2015) Capacity Drop: A Relation Between The Speed In Congestion And The Queue Discharge Rate. The 94th Annual Meeting of the Transportation Research Board, Washington D.C., U.S.A.
- Yuan, K., Knoop, V.L., Leclercq, L., and Hoogendoorn, S.P. (2015) Capacity Drop: A Comparison between Stop-And-Go Wave and Standing Queue at Lane-Drop Bottleneck. The Traffic Flow Theory Summer Meeting, Portland, U.S.A.
- Yuan, K., Knoop, V.L. and Hoogendoorn, S.P. (2014) Optimal Dynamic Green Time For Distributed Signal Control. The Symposium of the European Association for Research in Transportation, Leeds, United Kingdom.
- Lin, L., Yuan, K. and Ren, S. (2014) Analysis of urban freeway traffic flow characteristics based on frequent pattern tree. 2014 IEEE 17th International Conference on Intelligent Transportation Systems - (ITSC 2015), China.
Projects
On-going and past peojects
2023年12月28日 · On-going projectsSOME NOTES
Please don't hesitate to contact me if you have any comments and suggestions on my notes.
Plot speed/density contour:imagesc(X,Y,A)Reverse y direction:axis xy : ydir increases from bottom to topaxis ij : otherwisecreates an animated line:h = animatedline;Inkscape: Edit->Resize Page to Selection
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