LIU Yang

Biography

Dr. Liu Yang is jointly appointed as an Associate Professor in the Department of Civil and Environmental Engineering and the Department of Industrial Systems Engineering and Management at the National University of Singapore. She received her B.S. from Tsinghua University, her MPhil from Hong Kong University of Science and Technology, and her Ph.D. from Northwestern University. Previously, Dr. Liu worked as a consultant at Cambridge Systematics and provided modeling expertise to public agencies such as the Chicago Department of Transportation. She has worked on research projects funded by US and Singapore public agencies, including the US Federal Highway Administration, the National Science Foundation, Singapore Ministry of Education, and ST Engineering.  Dr. Liu’s research focuses on urban mobility and transport, which covers topics in the areas of ridesharing and carsharing systems operations and management, traffic congestion management, and data-driven transportation system modeling and analysis. She is leading the Lab for Urban Mobility Systems (LUMOS) (https://www.nuslumos.org) including PhD students, research fellows, and research visitors. Her work has been published in major journals in the transportation area, including Transportation Research Part A, Part B, Part C, Part E, and Transportation Science. Currently, she serves on the editorial boards of Transportation Science (Associate Editor), Transportation Research Part C, and Socio-Economic Planning Sciences (Associate Editor). She is a co-chair of WTC Shared Logistics and Transportation Systems Committee, a member of Transportation Research Board Standing Committee on Emerging and Innovative Public Transport and Technologies (AP020) and Transportation Network Modeling (AEP40), Co-Chair of Academic Affairs on the Chinese Overseas Transportation Association (COTA) Board of Directors, and a member of WCTRS Special Interest Group Transport Theory and Modelling.

LUMOS Lab Website: https://www.nuslumos.org

Education

• Ph.D. in Transportation System Analysis and Planning, Northwestern University, USA 2013
• M.Phil. in Civil Engineering, Hong Kong University of Science and Technology, China 2007
• B.S. in Civil Engineering, Tsinghua University, China 2005

Awards and Honours

• 2022 CICTP Best Area Editor Award
• 2022 Faculty Teaching Excellence Award,2022
• 2021 Best Student Paper Award, The 4th International Symposium on Multimodal Transport, (First Author: Xie Tingting, PhD student supervised by Liu Yang)
• 2021 Student Research Competition (Second Place) on Artificial Intelligence Enabled Next Generation Transportation Systems, ASCE T&DI, (Winner: Xie Jiaohong, Phd student supervised by Chen Nan and Liu Yang
• 2021 Certificate of Appreciation from Institution of Engineers Singapore
• 2021 Certificate of Appreciation ST Engineering Award, 2021
• 2018 Outstanding Reviewer for Transportation Research Part B
• 2018 Outstanding Reviewer for Transportation Research Part C
• 2017 Outstanding Reviewer for Transportation Research Part E
• 2013 Honorable Mention of the Transportation Science & Logistics Society, Intelligent Transportation Systems (SIG) Outstanding Presentation Award at INFORMS annual meeting
• 2011-2012 Transportation Center Dissertation Year Fellowship
• 2011-2012 Northwestern University Terminal Year Fellowship
• 2011 Scholarship, Kuhmo Nectar Summer School in Transportation Economics, Sweden
• 2011 International Transport Forum Annual Summit Poster Scholarship, Germany
• 2007-2009 Walter Murphy Fellowship, Northwestern University

Research Interests

• Travel demand and congestion management
• Urban mobility operations and management
• Information and infrastructure in connected transportation networks

Professional Activities

• Associate Editor, Transportation Science
• Associate Editor, Socio-Economic Planning Sciences
• Editorial Board Member, Transportation Research Part C: Emerging Technologies
• Guest Editor, Special Issue of Transportation Research Part E: Logistics and Transportation Review
• Editorial Board Member, Cleaner Logistics and Supply Chain
• Editorial Board Member, Communications in Transportation Research
• Editorial Board Member, Journal of Transportation Systems Engineering and Information Technology
• Board Member, The Chinese Overseas Transportation Association (COTA) Board of Directors
• Area editor 2022 Proceeding of COTA International Conference for Transportation Professionals
• Area editor Transportation Policy, Planning, and Modeling, 2017 Proceeding of COTA International Conference for Transportation Professionals
• Co-Chair, Shared Logistics and Transportation Systems Committee of World Transport Convention (WTC)
• Member, Transportation Research Board Committee on Emerging and Innovative Public Transport and Technologies (AP020)
• Member, Transportation Research Board Standing Committee on Transportation Network Modeling (AEP40)
• Member, World Congress for Transportation Research Society (WCTRS) Special Interest Group C1 Transport Theory and Modelling
• Member, IEEE ITS Education Committee
• Member, Shared Logistics and Transportation Systems Committee of World Transport Convention (WTC)
• Member, Freight Transportation Planning and Logistics Committee of World Transport Convention (WTC)

Selected Publications

• Chen, Y. and Liu, Y.* (2022) Integrated Optimization of Planning and Operations for Shared Autonomous Electric Vehicle Systems, Transportation Science 0(0).
• Xie J., Liu Y., and N. Chen (2021) Two-Sided Deep Reinforcement Learning for Dynamic Mobility-on-Demand Management with Mixed-Autonomy, Transportation Science, Forthcoming.
• Liu Y., Xie J., N. Chen (2022) Stochastic One-way Carsharing Systems with Dynamic Relocation Incentives through Preference Learning, Transportation Research Part E: Logistics and Transportation Review, 166, 102884.
• Xie, J., Yang, Z., Lai, X., Liu Y.*, Yang, X., Teng T., and Tham CK (2022) Deep Reinforcement Learning for Dynamic Incident-Responsive Traffic Information Dissemination, Transportation Research Part E: Logistics and Transportation Review, 166, 102871.
• Xie, T. and Liu Y.* (2022) Heterogeneous Information Provision on Traffic Networks with Competitive or Cooperative Information Providers, Transportation Research Part C: Emerging Technologies, 142, 103762.
• Gu, R., Poon, M., Luo, Z., Liu Y, and Liu Z. (2022) A hierarchical solution evaluation method and a hybrid algorithm for the vehicle routing problem with drones and multiple visits, Transportation Research Part C: Emerging Technologies, 141, 103733.
• Xie, T. and Liu Y.* (2022) Impact of connected and autonomous vehicle technology on market penetration and route choices, Transportation Research Part C: Emerging Technologies, 139, 103646.
• Zhao, H., Gunardi, W., Liu Y.*, Kiew, C., Teng T., and Yang, X. (2022) Prediction of Traffic Incident Duration Using Clustering Based Ensemble Learning Method, ASCE Journal of Transportation Engineering, Part A: Systems, 148(7): 04022044.
• He, D., Liu Y.*, Zhong, Q., and Wang, Z. (2022) On the morning commute problem in a Y-shaped network with individual and household travelers, Transportation Science 56(4):848-876.
• Guo, H., Chen, Y.*, and  Liu Y. (2022) Shared autonomous vehicle management considering competition with human-driven private vehicles, Transportation Research Part C: Emerging Technologies 136, 103547.Tian, Q., Lin, Y., Wang, D.*, and Liu Y. (2022) Planning for modular-vehicle transit service system: model formulation and solution methods, Transportation Research Part C: Emerging Technologies, 138, 103627.
• Liu Y.* and Yang Z. (2021) Information Provision and Congestion Pricing in Risky Road Networks with Heterogeneous Travelers, Transportation Research Part C: Emerging Technologies, 128, 103083.
• Yanfeng Li, Yang Liu* (2021) The static bike rebalancing problem with optimal user incentives, Transportation Research Part E: Logistics and Transportation Review, 146, 10221.
• Li, Y. and Liu Y.* (2021) Optimizing en-route matching in a ride-hailing system with boundedly rational users, Transportation Research Part E: Logistics and Transportation Review, 150, 102329.
• Minghua Zeng, Min Wang, Yang Liu, and  Jiuh-Biing Sheu (2020) Modeling evacuation route choices under influence of variable message signs, Computer-Aided Civil and Infrastructure Engineering, 35, 793-817.
• Li, Y., Liu Y.*, and Xie, J. (2020) A path-based equilibrium model for ridesharing matching, Transportation Research Part B: Methodological, 138, 373-405.
• Zhang, D., Liu Y.*, and He, S. (2019) Vehicle Assignment and Relays for One-Way Electric Car-Sharing Systems, Transportation Research Part B: Methodological 120, 125-146.
• Noruzoliaee, M., Zou, B., and Liu Y. (2018) Roads in Transition: Integrated Modeling of a Manufacturer-Traveler-Road Infrastructure System in a Mixed Autonomous/Human Driving Environment, Transportation Research Part C: Emerging Technologies 90, 307-333.
• Liu Y.*, Li Y., and Hu L. (2018) Departure Time and Route Choices in Bottleneck Equilibrium under Risk and Ambiguity, Transportation Research Part B: Methodological 117, 774-793.
• Liu, P. and Liu, Y.* (2018) Optimal Information Provision at Bottleneck Equilibrium with Risk-Averse Travelers, Transportation Research Record, Vol 2672, Issue 48, Transportation Research Record, 69-78.
• Yu, G., Haskell, W., and Liu Y. (2017) Resilient facility location against the risk of disruptions Transportation Research Part B: Methodological 104, 82-105.
• Liu, Y. *and Nie, Y. (2017) A credit-based congestion management scheme in general two-mode networks with multiclass users, Networks and Spatial Economics 17, 681–711.
• Liu Y.* and Li Y. (2017) Pricing Scheme Design of Ridesharing Program in Morning Commute Problem, Transportation Research Part C: Emerging Technologies 79, 156-177.
• Hu, L., and Liu Y.* (2016) Joint design of parking capacities and fleet size for one-way station-based carsharing systems with road congestion constraints, Transportation Research Part B: Methodological 93, 263-299.
• Liu, Y., Nie, Y., and Hall J. (2015) A semi-analytical approach for solving bottleneck model with general user heterogeneity, Transportation Research Part B: Methodological 71, 56-70.
• Chen H., Liu Y., and Nie Y. (2015) Solving the step-tolled bottleneck model with general user heterogeneity, Transportation Research Part B: Methodological 81, 210–229.
• Liu, Y. and Nie, Y. (2012) Welfare effects of congestion pricing and transit service in multi-class multi-modal networks, Transportation Research Record 2283, 34-43.
• Liu, Y. and Nie, Y. (2011) Morning commute problem considering route choice, user heterogeneity and alternative system optima, Transportation Research Part B: Methodological 45(4), 619-642.
• Nie, Y. and Liu, Y. (2010) Existence of self-financing and Pareto-improving congestion pricing: impact of value of time distribution, Transportation Research Part A: Policy and Practice 44(1), 39-51.
• Liu, Y., Guo, X. and Yang, H. (2009) Pareto-improving and revenue-neutral congestion pricing schemes in two-mode traffic networks, NETNOMICS: Economic Research and Electronic Networking 10 (1), 123-140.