- A life-cycle policy assessment of fuel and refueling infrastructure options for achieving zero-emission bus (ZEB) in Hong Kong (基於生命週期的零排放公交系統燃料及其基礎設施綜合決策的政策評估研究)， funded by the RISUD Interdisciplinary Research Scheme (IRS), Dec. 1, 2023 to Nov. 30, 2026, PI: Anthony Chen (CEE), Co-Is: Xiaowen Fu (ISE), Jinyue Yan (BEEE), Chengxiang Zhuge (LSGI)

- Evaluating the improvement of service availability for e-hailing in Hong Kong: A data-driven approach for spatio-temporal analysis, proposal funded by the HKTaxi Industry Innovation Committee under the theme of Big data analysis and knowledge discovery for the taxi industry in Hong Kong, Feb. 1 to May 31, 2023, PI: Wei Ma (CEE), Co-Is: Anthony Chen (CEE), Xintao Liu (LSGI), Sisi Jan (HKUST), Kenan Zhang (ETH Zurich)

- Tailoring next-generation travel demand models for future transportation systems with emerging technologies, funded by the General Research Fund (GRF) Research Grant in Hong Kong, Jan. 1, 2023 to Dec. 31, 2025, Co-Is: Shlomo Bekhor (Technion – Israel Institute of Technology) and Songyot Kitthamkesorn (Chiang Mai University)

- Data-driven solutions for decarbonizing transportation sector by coupling renewable energy, energy storage and smart EV-charging (通過將可再生能源及儲能和智慧電動汽車充電技術相結合實現城市交通運輸脫碳的數據驅動解 決方案的研究), funded by the RISUD Interdisciplinary Research Scheme (IRS), Dec. 1, 2022 to Nov. 30, 2025, PI Hongxing Yang (BEEE), Co-Is: Anthony Chen (CEE), Jinyue (Jerry) Yan (BEEE), and Sunliang Cao (BEEE)

- A web-based tool development for assessing the impact of typhoon and heavy rainfall on Hong Kong multi-modal transportation network resilience, funded by the Internal CEE Research Project Proposal, Sept. 1, 2022 to Feb. 28, 2024, PI Anthony Chen (CEE), Co-Is: Alessandro Stocchino (CEE), Wei Ma (CEE), Tony Sze (CEE), Xintao Liu (LSGI), Shuo Wang (LSGI), and Dr. Sarawut Jansuwan (NIDA, Thailand)

- Integrated land use and transportation planning for new metropolitan areas, submitted to the Research Institute for Land and Space (RILS), Aug. 1, 2022 to July 31, 2024, PI Anthony Chen (CEE), Co-PI: Xiaowen Fu (ISE), Co-Is: Xintao Liu (LSGI), Tony Sze (CEE), Jiangbo (Gabe) Yu (AECOM, USA)

- Quantifying the potential impact of shared autonomous vehicles on parking demand and fleet size requirements in cities, funded by the FCE Young Researcher Collaborative Research Fund, June 2022 to May 2025, PI Yang Xu (LSGI), Co-Is: Anthony Chen (CEE), Carlo Ratti (MIT), Zhan Zhao (HKU), and Wei Tu (Shenzhen Univ)

- Smart infrastructure planning for transportation electrification, funded by the Smart Cities Research Institute (SCRI), July 2022 to June 2025, PI Chengxiang Zhuge (LSGI), Co-Is: Anthony Chen (CEE), Xiang Wang (CEE), Meng Meng (SM, Univ. of Bath), Jie Zhang (SM, Univ. of Bristol), and Tianren Yang (UPD, HKU)

- Integrated Strategic and Operational Planning for the Urban Transportation-Electricity Megasystem, funded by the Research Proposal for Funding Support for Project of Strategic Importance (PolyU), April 1, 2022 to March 31, 2024, PI Anthony Chen (CEE, PolyU); Co-Is: Shengwei Wang (BSE), Wei Ma (CEE), Tony Zhuge (LSGI), Min Xu (ISE), Jintao Ke (HKU), Sylvia He (CUHK) Samuel Labi (Purdue Univ), Ziqi Song (USU), and Jiangbo (Gabe) Yu (AECOM)

- System Planning and Policy Design for Autonomous Service Enabled Transport Systems (自動駕駛運輸系統的規劃和政策制定), funded by FENG under the ISE Collaborative Research with World-leading Research Groups at PolyU, March 1, 2022 to Feb. 29, 2024, PI Xiaowen Fu (ISE), Co-Is: Zinhua Zhao (MIT), Anthony Chen (CEE), and Zhi-Chun Li (HZUST)

- Doubly stochastic day-to-day traffic assignment model with application to transportation network resilience analysis, funded by the General Research Fund (GRF) Research Grant in Hong Kong, Jan. 1, 2022 to Dec. 31, 2024, Co-Is: Xiangdong Xu (Tongji University) and Songyot Kitthamkesorn (Chiang Mai University)

- Towards a digital-twin system for smart mobility for people with disabilities (PwDs) using multi-data sensing and big data analytics (基於多源數據感知和大數據分析技术的無障礙智能出行數字孿生系統研究), funded by the RISUD Emerging Frontier Areas (EFA) Scheme (3D Digital Twin for Smart Mobility; 智慧出行3D數字孿生) at PolyU, August 2021 to July 2024, PI Xintao Liu (LSGI), Co-Is: Wenzhong Shi (LSGI), Anthony Chen (CEE), Song Guo (COMP), Wai-yeung Yan (LSGI), Chengxiang Zhuge (LSGI), Kar-Kan Ling (DISI), and Kenneth Fong (RS)

- Towards a Smart System for Post-Windstorm Tree Debris Cleanup and Transportation Network Restoration in Hong Kong (應對風災襲港後樹木殘骸清理及交通網絡恢復的智慧系統研究), funded by the RISUD Emerging Frontier Areas (EFA) Scheme (Disaster Emergency Response in Smart Cities; 智慧城市災害應急決策) at PolyU, August 2021 to July 2024, PI Wei Ma (CEE), Co-Is: Jiannong Cao (COMP), Anthony Chen (CEE), Charles Wong (LSGI), Tony Sze (CEE), and Xintao Liu (LSGI)

- Smart land use and transportation planning for connected and autonomous vehicles, funded by the Smart City Research Institute (SCRI) at the Hong Kong Polytechnic University, April 2021 to April 2023, PI Anthony Chen (CEE), Co-Is: Edwin Chan (BRE), Xintao Liu (LSGI), Tony Zhuge (LSGI), Wei Ma (CEE), Min Xu (ISE), Jintao Ke (LMS); Collaborators: Samuel Labi (Purdue University) and Ziqi Song (Utah State University)

- Considering multi-dimensional travel choice in transportation network vulnerability and optimization analysis (考虑多维度选择行为的多模式交通网络脆弱性分析与优化方法), funded by the National Natural Science Foundation of China (NSFC), Jan. 2021 to Dec. 2024, PI Anthony Chen

2023

- Chan, H., Xu, Y., Chen, A., Liu, X., Cheung, K. (2023) Drawing metro maps in concentric circles: A designer-in-the-loop approach with visual examples. Transaction in GIS, 27, 703-729. DOI: 10.1111/tgis.13001

-Chan, H. Y., Xu, Y., Chen, A., Zhou, J. (2023). Choice and equity: A critical analysis of multi-modal public transport services. Transport Policy, 140, 114–127. https://doi.org/10.1016/j.tranpol.2023.06.013

- Chen, R., Xu, X., Chen, A., Yang, C. (2023) A conservative expected travel time approach for traffic information dissemination under uncertainty. Transportmetrica B: Transport Dynamics 11(1), 211-230. DOI: 10.1080/21680566.2022.2060369

- Chen, R., Xu, X., Chen, A., Zhang, X., (2023) How to disseminate reliable waiting time app-based transportation services considering attractiveness and credibility. Transportmetrica A: Transport Science 19(3), 2077857. DOI: 10.1080/23249935.2022.2077857

- Du, M., Cun, D., Chen, A., Tan, H. (2023) A weibit-based sequential transit assignment model based on hyperpath graph and generalized extreme value network representation. Transportation Research Part C 151, 104142. DOI: 10.1016/j.trc.2023.104142

- Gu, Y., Chen, A. (2023) Modeling mode choice of customized bus services with loyalty subscription schemes in multi-modal transportation networks. Transportation Research Part C 147, 104012. DOI: 10.1016/j.trc.2023.104012

- Gu, Y., Chen, A., Xu, X. (2023) Measurement and ranking of important link combinations in the analysis of transportation network vulnerability envelope buffers under multiple-link disruptions. Transportation Research Part B 167, 118-144. DOI: 10.1016/j.trb.2022.11.013

- Li, G., Chen, A. (2023) Strategy-based transit stochastic user equilibrium model with capacity and number of transfers constraints. European Journal of Operational Research 305, 164-183. DOI: 10.1016/j.ejor.2022.05.040

- Li, Z., Li, G., Xu, Z., Chen, A. (2023) Multiclass bi-criteria traffic assignment without class-specific variables: An alternative formulation and a subgradient projection algorithm. Transportation Research Part E 176, 103210. 10.1016/j.tre.2023.103210

- Mansoor, U., Jamal, A., Su, J., Sze, N.N., Chen, A. (2023) Investigating the risk factors of motorcycle crash severity in Pakistan: Insights and policy recommendations. Transport Policy 139, 21-38. DOI: 10.1016/j.tranpol.2023.05.013

- Wang, G., Tong, K., Chen, A., Qi, H., Xu, X., Ma, S. (2023) Impacts of the least perceived travel cost on the weibit network equilibrium. Transportmetrica A: Transport Science 19(2), 1980131. DOI: 10.1080/23249935.2021.1980131

- Wang, S., Chen, A., Wang, P., Zhuge, C. (2023) Predicting electric vehicle charging demand using a heterogeneous spatio-temporal graph convolution network. Transportation Research Part C 153, 104205. DOI: 10.1016/j.trc.2023.104205

- Wang, S., Chen, A., Wang, P., Zhuge, C. (2023) Short-term electric vehicle battery swapping demand prediction: Deep learning methods. Transportation Research Part D 119, 103746. DOI: 10.1016/j.trd.2023.103746

- Wang, S., Li, Y., Chen, A., Zhuge, C. (2023) Electrification of a citywide bus network: A data-driven micro-simulation approach. Transportation Research Part D 116, 103644. Doi: 10.1016/j.trd.2023.103644

- Wang, S., Peng, Z., Wang, P., Chen, A., Zhuge, C. (2023) A data-driven multi-objective optimization framework for determining the suitability of hydrogen fuel cell vehicles in freight transport. Applied Energy 347, 121452. DOI: 10.1016/j.apenergy.2023.121452

- Wang, Z., Yu, J., Peng, Y., Li, G., Zhuge, C., Chen, A. (2023) Time for hydrogen buses? Dynamic analysis of the Hong Kong bus market. Transportation Research Part D 115, 103602. DOI: 10.1016/j.trd.2022.103602

- Xie, C., Bao, Z., Chen, A., (2023) Disrupted transportation networks under different information availability and stochasticity situations. Transportation Research Part C 150, 104097. DOI: 10.1016/j.trc.2023.104097

- Xu, Z., Chen, A., Liu, X. (2023) Time and toll trade-off with heterogeneous users: A continuous time surplus maximization bi-objective user equilibrium model. Transportation Research Part B 173, 31-58. DOI: 10.1016/j.trb.2023.04.007

-Yao, J., Cheng, Z., Chen, A. (2023). Bibliometric analysis and systematic literature review of the traffic paradoxes (1968–2022). In Transportation Research Part B: Methodological (Vol. 177). Elsevier Ltd. https://doi.org/10.1016/j.trb.2023.102832

-Xu, G., Xiao, Y., Song, Y., Li, Z., Chen, A. (2023). Capacity-constrained mean-excess equilibrium assignment method for railway networks. Transportation Research Part C: Emerging Technologies, 156. https://doi.org/10.1016/j.trc.2023.104350

-Xu, M., Li, G., Chen, A. (2024). Resilience-driven post-disaster restoration of interdependent infrastructure systems under different decision-making environments. Reliability Engineering and System Safety, 241. https://doi.org/10.1016/j.ress.2023.109599

2022

- Chan, H.Y., Ip, L., Mansoor, U., Chen, A. (2022) Pedestrian route choice with respect to the new lift-only entrances to underground space: Case study of a metro station area in hilly terrain in Hong Kong. Tunnelling and Underground Space Technology 129, 104678. DOI: 10.1016/j.tust.2022.104678

- Chan, H.Y., Xu, Y., Chen, A., Liu, X. (2022) Impacts of the walking environment on mode and departure time shifts in response to travel time change: Case study in the multi-layered Hong Kong metropolis. Travel Behaviour and Society 28, 288-299. DOI: 10.1016/j.tbs.2022.04.010

- Cheng, Z., Yao, J., Chen, A., An, S. (2022) Analysis of a multiplicative hybrid route choice model in stochastic assignment paradox. Transportmetrica A: Transport Science 18(3), 1544-1568. DOI: 10.1080/23249935.2021.1953189

- Du, M., Chen, A. (2022) Sensitivity analysis for transit equilibrium assignment and applications to uncertainty analysis. Transportation Research Part B 157, 175-202. DOI: 10.1016/j.trb.2022.02.001

- Du, M., Zhou, J., Chen, A., Tan, H. (2022) Modeling the capacity of multimodal and intermodal urban transportation networks that incorporate emerging travel modes. Transportation Research Part E 168, 102937. DOI: 10.1016/j.tre.2022.102937

- Du, M., Jiang, X., Chen, A. (2022) Identifying critical links using network capacity-based indicator in multi-modal transportation networks. Transportmetrica B: Transport Dynamics 10(1), 1126-1150. DOI: 10.1080/21680566.2021.2023371

- Gu, Y., Chen, A., Kitthamkesorn, S. (2022) Weibit choice models: Properties, mode choice applications and graphical illustrations. Journal of Choice Modelling 44, 100373. DOI: 10.1016/j.jocm.2022.100373

- Gu, Y., Chen, A., Kitthamkesorn, S. (2022) Accessibility-based vulnerability analysis of multi-modal transportation networks with weibit choice models. Multimodal Transportation 1(3), 100029. DOI: 10.1016/j.multra.2022.100029. Paper won the MULTRA 2022 Best Article Award from the Elsevier Journal “Multimodal Transportation”. The award is given to the top 10% or less of articles published in 2022

- Li, G., Chen, A. (2022) Frequency-based path flow estimator for transit origin-destination trip matrices incorporating automatic passenger count and automatic fare collection data. Transportation Research Part E 163, 102754. DOI: 10.1016/j.tre.2022.102754

- Ma, Z., Yang, X., Chen, A., Wu, J., Wei, Y. (2022) Measuring the resilience of an urban rail transit network: A multi-dimensional evaluation model. Transport Policy 129, 38-50. DOI: 10.1016/j.tranpol.2022.10.003

- Qu, K., Xu, X., Chen, A. (2022) Static congestion pricing considering day-to-day dynamics with weibit-based route flow adjustment. Transportmetrica B: Transport Dynamics 10(1), 237-265. DOI: 10.1080/21680566.2021.1985010

- Tan, H., Du, M., Chen, A. (2022) Accelerating the gradient projection algorithm for the non-additive traffic assignment problem with the Barzilai-Borwein step size. Computers and Operations Research 141, 105723. DOI: 10.1016/j.cor.2022.105723

- Xu, Y., Chan, H., Chen, A. (2022) Automated generation of concentric circles metro maps using mixed-integer optimization. International Journal of Geographical Information Science 36(12), 2386-2411. DOI: 10.1080/13658816.2022.2102636

- Xu, Y., Chan, H., Chen, A., Liu, X. (2022) Walk this way: Visualizing accessibility and mobility around metro station areas based on a 3D pedestrian network. Environment and Planning B: Urban Analytics and City Science 49(4), 1331-1335. DOI: 10.1177/23998083221089321

- Xu, Y., Chan, H., Chen, A., Ni, Y.-Q. (2022) Proactive resilience building through route diversity: A close look at the metro system from the travelers’ perspective. Findings, July, 1-7. DOI: 10.32866/001c.37215

- Xu, Y., Cheng, D., Chan, H., Chen, A. (2022) Visualizing the impact of COVID-19 vaccine passports on pedestrian access to metro stations in Hong Kong. Regional Studies, Regional Science 91(1), 516-518. DOI: 10.1080/21681376.2022.2094828

- Wang, P., Wang, K., Huang, Z., Ling, X., Zhang, F., Chen, A. (2022) A two-step model for predicting travel demand in expanding subways. IEEE Transaction on Intelligent Transportation Systems 23(10), 19534-19543. DOI: 10.1109/TITS.2022.3166669

- Wen, K., Xie, J., Chen, A., Wong, S.C., Zhan, S., Lo, S.M., Qiang, L. (2022) Empirical analysis of scaled mixed itinerary-size weibit model for itinerary choice in a schedule-based railway network. Transportmetrica A: Transport Science 18(3), 934-962. DOI: 10.1080/23249935.2021.1912206

- Zang, Z., Xu, X., Chen, A., Yang, C. (2022) Modeling the -max capacity of transportation networks: A single-level mathematical programming formulation. Transportation 49, 1211-1243. DOI: 10.1007/s11116-021-10208-1

- Zang, Z., Xu, X., Qu, K., Chen, R. Chen, A. (2022) Travel time reliability in transportation networks: A methodological framework and review. Transportation Research Part C 143, 103866. DOI: 10.1016/j.trc.2022.103866

- Zhao, R., Xu, X., Chen, A. (2022) Alternative method of counting the number of efficient paths in a transportation network. Transportmetrica A: Transport Science 18(3), 1207-1233. DOI: 10.1016/j.trc.2022.103866

- Zhou, J., Du, M., Chen, A. (2022) A multimodal urban transportation network capacity model considering intermodal transportation. Transportation Research Record 2676(9), 357-373. DOI: 10.1177/03611981221086931

2021

- Chan, H.Y., Chen, A., Li, G., Xu, X., Lam, W.H.K. (2021) Evaluating the value of new metro lines using route diversity measures: the case of Hong Kong’s Mass Transit Railway system. Journal of Transport Geography 91, 102945. DOI: 10.1016/j.jtrangeo.2020.102945

- Chan, H.Y., Chen, A., Ma, W., Sze, N.N., Liu, X. (2021) COVID-19, inhabitant response, public policy, and travel pattern: A tale of Hong Kong. Transport Policy 106, 173-184. DOI: 10.1016/j.tranpol.2021.04.002

- Du, M., Tan, H., Chen, A. (2021) A faster path-based algorithm with Barzilai-Borwein step size for solving stochastic traffic equilibrium models. European Journal of Operational Research 290(3), 982-999. DOI: 10.1016/j.ejor.2020.08.058

- Jansuwan, S., Chen, A., Xu, X. (2021) Analysis of freight transportation network redundancy: An application to Utah’s bi-modal network for transporting coal. Transportation Research Part A 151, 154-174. DOI: 10.1016/j.tra.2021.06.019

- Jansuwan, S., Liu, Z., Song, Z., Chen, A. (2021) An evaluation framework of automated electric transportation system. Transportation Research Part E 148, 102265. DOI: 10.1016/j.tre.2021.102265

- Kitthamkesorn, S., Chen, A., Opasanon, S., Jaita, S. (2021) A P-hub location problem for determining park-and-ride facility locations with the weibit-based choice model. Sustainability 13, 7928. DOI: 10.3390/su13147928

- Liu, X., Wu, J., Huang, J., Zhang, J., Chen, B., Chen, A. (2021) Spatial-interaction network analysis of built environmental influence on daily public transport demand. Journal of Transport Geography 92, 102991. DOI: 10.1016/j.jtrangeo.2021.102991

- Ryu, S., Chen, A., Kitthamkesorn, S. (2021) A two-phase gradient projection algorithm for solving the combined modal split and traffic assignment problem with nested logit function. Journal of Advanced Transportation 2021, Article ID 1986851. DOI: 10.1155/2021/1986851

- Ryu, S., Chen, A., Su, J., Choi, K. (2021) A multi-class, multi-criteria bicycle traffic assignment model. International Journal of Sustainable Transportation 15(7), 524-540. DOI: 10.1080/15568318.2020.1770906

- Ryu, S., Chen, A., Su, J., Liu, X., Yu, J.G. (2021) Considering space syntax in bicycle traffic assignment with one or more user classes. Sustainability 13(19), 11078. DOI: 10.3390/su131911078

- Sugiura, S., Chen, A. (2021) A vulnerability analysis of cut-capacity structure and OD demand using the Gomory-Hu tree method. Transportation Research Part B 153, 111-127. DOI: 10.1016/j.trb.2021.08.013

- Xu, X., Chen, A., Xu, G., Yang, C., Lam, W.H.K. (2021) Enhancing network resilience via adding redundancy to road networks. Transportation Research Part E 154, 102448. DOI: 10.1016/j.tre.2021.102448

- Xu, X., Qu, K., Chen, A., Yang, C. (2021) A new day-to-day dynamic network vulnerability analysis approach with weibit-based route adjustment process. Transportation Research Part E 153, 102421. DOI: 10.1016/j.tre.2021.102421

- Yu, J., Chen, A. (2021) Differentiating and modeling the installation and the usage of autonomous vehicle technologies: A system dynamics approach for policy impact studies. Transportation Research Part C 127, 103089. DOI: 10.1016/j.trc.2021.103089

- Zhou, Y., Zhao, M., Lam, W.H.K., Chen, A., Sze, N.N., Tang, S., Chen, Y. (2021) Modeling the impact of dock-less bike-sharing system on outpatient trips. Sustainable Cities and Society 69, 102853. DOI: https://doi.org/10.1016/j.scs.2021.102853

2020

- Gu, Y., Fu, X., Liu, Z., Xu, X., Chen, A. (2020) Performance of transportation network under perturbations: Reliability, vulnerability, and resilience. Transportation Research Part E 133, 101809. DOI: 10.1016/j.tre.2019.11.003

- Li, D., Jin, C., Yang, M., Chen, A., (2020) Incorporating multi-level taste heterogeneity in route choice modeling: From disaggregated behavior analysis to aggregated network loading. Travel Behavior and Society 19, 36-44. DOI 10.1016/j.tbs.2019.11.002

- Vo, K.D., Lam, W.H.K., Chen, A., Shao, H. (2020) A household utility optimum approach for modeling joint activity-travel choices in congested road networks. Transportation Research Part B 134, 93-125. DOI: 10.1016/j.trb.2020.02.007

- Wang, G., Chen, A., Kitthamkesorn, S., Ryu, S., Qi, Q., Song, Z., Song, J. (2020) A multi-modal network equilibrium model with captive mode choice and path size logit route choice. Transportation Research Part A 136, 293-317. DOI: 10.1016/j.tra.2020.03.035

- Xie, J., Zhan, S., Wong, S.C., Lo, S.M., Chen, A. (2020) Train schedule optimization based on scheduled-based stochastic passenger assignment. Transportation Research Part E 136, 101882. DOI: /10.1016/j.tre.2020.101882

- Zhou, Y., Zhao, M., Tang, S., Lam, W.H.K., Chen, A., Sze, N.N., Chen, Y., (2020) Assessing the relationship between access travel time estimation and the accessibility to high-speed railway station by different travel modes. Sustainability 2020, 12, 7827. DOI:10.3390/su12187827

2019

- Babakeik, M., Nasiri, M.M., Khademi, N., Chen, A. (2019) Vulnerability evaluation of railway networks using a heuristic routing and scheduling optimization model. Transportation 46(4), 1143-1170. DOI 10.1007/s11116-017-9815-x

- Ryu, S., Su, J., Chen, A., Choi, K. (2019) Estimating bicycle demand of a small community. KSCE Journal of Civil Engineering 23(6), 2690-2701. DOI 10.1007/s12205-019-0415-5

- Sharifi, M.S., Christensen, K., Chen, A., Song, Z. (2019) Exploring effects of environment density on heterogeneous populations' level of service perceptions. Transportation Research Part A 124, 115-127. DOI: 10.1016/j.tra.2019.03.007

- Stuart, D. Sharifi, M.S., Christensen, K., Chen, A., Kim, Y.S., Chen, Y.Q. (2019) Crowds involving individuals with disabilities: Modeling heterogeneity using fractional order potential fields and the social force model. Physica A 514, 244-258. DOI: 10.1016/j.physa.2018.08.174

- Yang, X., Chen, A., Wu, J., Gao, Z., Tang, T. (2019) An energy-efficient rescheduling approach under delay perturbations for metro systems. Transportmetrica B: Transport Dynamics 7(1), 386-400. DOI: 10.1080/21680566.2017.1421109

- Yan, Y., Xu, X., Chen, A. (2019) Is it necessary to relax IID assumptions in the logsum-based accessibility analysis. Transportation Research Record 2673(4), 84-96. DOI: 10.1177/0361198119839972

- Yao, J., Cheng, Z., Dai, J., Chen, A., An, S. (2019) Traffic assignment paradoxes incorporating congestion and stochastic perceived error simultaneously. Transportmetrica A: Transport Science 15(2), 307-325. DOI: 10.1080/23249935.2018.1474962

- Yao, J., Huang, W., Chen, A., An, S., Xu, G. (2019) Paradox links can improve system efficiency: An illustration in traffic assignment problem. Transportation Research Part B 129, 35-49. DOI: 10.1016/j.trb.2019.07.018

2017

- Gaire, N., Sharifi, M.S., Christensen, K., Chen, A., Song, Z. (2017) Walking behavior of individuals with and without disabilities at right-angle turning facility. Journal of Accessibility and Design for All 7(1), 56-75. Doi: http://dx.doi.org/10.17411/jacces.v7i1.127.

- Jansuwan, S., Ryu, S., Chen, A. (2017) A two-stage approach for estimating statewide truck trip table. Transportation Research Part A 102, 274-292. Doi: 10.1016/j.tra.2016.09.013.

- Kitthamkesorn, S., Chen, A. (2017) Alternate weibit-based model for assessing green transport systems with combined mode and route travel choices. Transportation Research Part B 103, 291-310. Doi: 10.1016/j.trb.2017.04.011.

- Ryu, S., Chen, A., Choi, K. (2017) Solving the combined modal split and traffic assignment problem with two types of transit impedance function. European Journal of Operational Research 257(3), 870-880. Doi: 10.1016/j.ejor.2016.08.019.

- Sharifi, M.S., Christensen, K., Chen, A., Stuart, D., Kim, Y., Chen, Y. (2017) A large-scale controlled experiment on pedestrian walking behavior involving individuals with disabilities. Travel Behavior and Society 8, 14-25. Doi: 10.1016/j.tbs.2017.03.003.

- Szeto, W.Y., Chen, A. (2017) Guest editorial: Green urban transportation. Transportation Research Part B 103, 1-4. Doi: 10.1016/j.trb.2017.06.011

- Xu, X., Chen, A., Cheng, L., Yang, C. (2017) A link-based mean-excess traffic equilibrium model under uncertainty. Transportation Research Part B 95, 53-75. Doi: 10.1016/j.trb.2016.10.018.

-Yang, X., Chen, A., Ning, B., Tang, T. (2017) Measuring route diversity for urban rail transit networks: A case study of the Beijing metro network. IEEE Transactions on Intelligent Transportation Systems 18(2), 259-268. DOI: 10.1109/TITS.2016.2566801.

- Yang, X., Chen, A., Ning, B., Tang, T. (2017) Bi-objective programming approach for solving metro timetable optimization problem with dwell time uncertainty. Transportation Research Part E 97, 22-37. Doi: 10.1016/j.tre.2016.10.012.

2016

- Kang, J.E., Chen, A. (2016) Constructing full-day feasible space-time polyhedron using activity-based space-time prisms. Transportmetrica A: Transport Science. 12(7), 591-611. DOI: 10.1080/23249935.2016.1189708.

- Kitthamkesorn, S., Chen, A., Xu, X., Ryu, S. (2016) Modeling mode and route similarities in network equilibrium problem with go-green modes. Networks and Spatial Economics 16(1), 33-60. DOI: 10.1007/s11067-013-9201-y.

- Manley, M., Kim, Y., Christensen, K., Chen, A. (2016) Airport emergency evacuation planning: An agent-based simulation study of dirty bomb scenarios. IEEE Transactions on Systems, Man and Cybernetics: Systems 46(10), 1390-1403. DOI:10.1109/TSMC.2015.2497213.

- Ryu, S., Chen, A., Choi, K. (2016) Solving the stochastic multiclass traffic assignment problem with asymmetric interactions, route overlapping, and vehicle restrictions. Journal of Advanced Transportation 50(2), 255-270. DOI: 10.1002/atr.1313.

- Sharifi, M.S., Christensen, K., Stuart, D., Chen, A. (2016) Time headway modeling and capacity analysis of pedestrian facilities involving individuals with disabilities. Transportation Research Record 2553, 41-51. DOI: 10.3141/2553-05.

- Sharifi, M.S., Stuart, D., Christensen, K., Chen, A., Kim, Y., Chen, Y. (2016) Analysis of walking speeds involving individuals with disabilities in different indoor walking environments. Journal of Urban Planning and Development 142(1), 04015010. DOI: 10.1061/(ASCE)UP.1943-5444.0000288.

- Tay, R., Chen, A., Park, D., Lee, C. (2016) Preface: Sustainable Urban Transportation System. KSCE Journal of Civil Engineering 20(3), 1.

- Xu, X., Chen, A., Yang, C. (2016) A review of sustainable network design for road networks. KSCE Journal of Civil Engineering 20(3), 1084-1098. DOI:10.1007/s12205-016-1729-1.

- Xu, X., Lo, H.K., Chen, A., Castillo, E. (2016) Robust traffic counting location for complete link flow observability under uncertainty. Transportation Research Part B 88, 1-20. doi:10.1016/j.trb.2016.03.006.

- Yang, X., Chen, A., Ning, B., Tang, T. (2016) A stochastic model for the integrated optimization on metro timetable and speed profile with uncertain train mass. Transportation Research Part B 91, 424-445. DOI: 10.1016/j.trb.2016.06.006.

2015

- Jansuwan, S., Chen, A. (2015) Considering perception errors in network efficiency measure: An application to bridge importance ranking in degradable transportation networks. Transportmetrica A: Transport Science 11(9), 793-818. DOI: 10.1080/23249935.2015.1087694.

- Kitthamkesorn, S., Chen, A., Xu, X. (2015) Elastic demand with weibit stochastic user equilibrium flows and application in a motorized and non-motorized network. Transportmetrica A: Transport Science 11(2), 158-185. Doi: 10.1080/23249935.2014.944241.

- Li., L., Xiong, J., Chen, A., Dong, Z., Zhao, S. (2015) Study of key strategies for public transportation improvement based on theory of planned behavior: A case study in Shanghai, China. ASCE Urban Planning and Development 141(2), 04014019. DOI: 10.1061/(ASCE)UP.1943-5444.0000203.

- Pu, Y., Yang, C., Liu, H., Chen, Z., Chen, A. (2015) Impact of license plate restriction policy on emission reduction in Hangzhou using a bottom-up approach. Transportation Research Part D 34, 281-292. DOI: 10.1016/j.trd.2014.11.007.

- Sharifi, M.S., Chen, A., Kitthamkesorn, S., Song, Z. (2015) Link-based stochastic loading methods for the weibit route choice model. Transportation Research Record 2497, 84-94. DOI: 10.3141/2497-09.

- Sharifi, M.S., Stuart, D., Christensen, K., Chen, A. (2015) Traffic flow characteristics of heterogeneous pedestrian stream involving individuals with disabilities. Transportation Research Record 2537, 111-125. DOI: 10.3141/2537-13.

- Xu, X., Chen, A., Cheng, L. (2015) Reformulating environmentally constrained traffic equilibrium via a smooth gap function. International Journal of Sustainable Transportation 9(6), 419-430. Special issue on “Sustainability in Transport Networks.” DOI:10.1080/15568318.2013.777261.

- Xu, X., Chen, A., Kitthamkesorn, S., Yang, H., Lo, H.K. (2015) Modeling absolute and relative cost differences in stochastic user equilibrium problem. Transportation Research Part B 81, Part 3, 686-703. DOI: 10.1016/j.trb.2015.05.014.

- Xu, X., Chen, A., Wong, S.C., Cheng, L. (2015) Short communication: Selection bias in build-operate-transfer transportation project appraisal. Transportation Research Part A 75, 245-251. Doi:10.1016/j.tra.2015.03.026.

- Yang, X., Chen, A., Li, X., Ning, B., Tang, T. (2015) An energy-efficient scheduling approach to improve the utilization of regenerative energy for metro rail systems. Transportation Research Part C 57, 13-29. DOI: 10.1016/j.trc.2015.05.002.

2014

- Chen, A., Ryu, S., Xu, X., Choi, K. (2014) Computation and application of the paired combinatorial logit stochastic traffic equilibrium problem. Computers and Operations Research 43(1), 68-77. Doi:10.1016/j.cor.2013.08.022.

- Chen, Z., Yang, C., Chen, A. (2014) Estimating fuel consumption and emissions based on reconstructed vehicle trajectories. Journal of Advanced Transportation 48(6), 627-641. Doi: 10.1002/atr.1215.

- Kitthamkesorn, S., Chen, A. (2014) An unconstrained weibit stochastic user equilibrium model with extensions. Transportation Research Part B 59, 1-21. Doi:10.1016/j.trb.2013.10.010.

- Ryu, S., Chen, A., Choi, K. (2014) A modified gradient projection algorithm for solving the elastic demand traffic equilibrium problem. Computers and Operations Research 47, 61-71. Doi: 10.1016/j.cor.2014.01.012.

- Ryu, S., Chen, A., Xu, X., Choi, K. (2014) A dual approach for solving the combined distribution and assignment problem with link capacity constraints. Networks and Spatial Economics 14(2), 245-270. DOI: 10.1007/s11067-013-9218-2.

- Ryu, S., Chen, A., Xu, X., Choi, K. (2014) Modeling demand elasticity and route overlapping in stochastic user equilibrium through paired combinatorial logit model. Transportation Research Record 2429, 8-19. DOI: 10.3131/2429-02.

- Ryu, S., Chen, A., Zhang, H.M., Recker, W. (2014) Path flow estimator for planning applications of small communities. Transportation Research Part A 69, 212-242. Doi: 10.1016/j.tra.2014.08.019.

- Shao, H., Lam, W.H.K., Sumalee, A., Chen, A., Hazelton, M.L. (2014) Estimation of mean and covariance of peak hour origin-destination demands from traffic counts with seasonal effects. Transportation Research Part B 68, 52-75. DOI: 10.1016/j.trb.2014.06.002.

- Wang, J.Y.T, Ehrgott, M., Chen, A. (2014) A bi-objective user equilibrium model of travel time reliability in a road network. Transportation Research Part B 66, 4-15. Special issue on “Advances in Equilibrium Models for Analyzing Transportation Reliability”. Doi:10.1016/j.trb.2013.10.007.

- Xu, X., Chen, A., Cheng, L., Lo, H. (2014) Modeling distribution tail in network performance assessment: A mean-excess total travel time risk measure and analytical estimation method. Transportation Research Part B 66, 32-49. Special issue on “Advances in Equilibrium Models for Analyzing Transportation Reliability”. Doi: 10.1016/j.trb.2013.09.011.

- Xu, X., Chen, A., Zhou, Z., Cheng, L. (2014) A multi-class mean-excess traffic equilibrium model with elastic demand. Journal of Advanced Transportation 48(3), 203-222. Doi: 10.1002/atr.205.

- Yao, J., Chen, A. (2014) An analysis of logit and weibit route choices in stochastic assignment paradox. Transportation Research Part B 69, 31-49. Doi: 10.1016/j.trb.2014.07.006.

- Yao, J., Chen, A., Ryu, S., Shi, F. (2014) A general unconstrained optimization formulation for the combined distribution and assignment problem. Transportation Research Part B 59, 137-160. Doi: 10.1016/j.trb.2013.11.007.

- Zhu, S., Cheng, L., Chu, Z., Chen, A., Chen, J. (2014) Identification of network sensor locations for traffic flow estimation. Transportation Research Record 2443(2), 32-39. DOI: 10.3141/2443-04.

2013

- Chen, A., Kasikitwiwat, P., Yang, C. (2013) Alternate capacity reliability measures for transportation networks. Journal of Advanced Transportation 47(1), 79-104. Doi: 10.1002/atr.216.

- Chen, A., Xu, X., Ryu, S., Zhou, Z. (2013) A self-adaptive Armijo stepsize strategy with application to traffic assignment models and algorithms. Transportmetrica A: Transport Science 9(8), 695-712. Doi:10.1080/18128602.2011.653999.

- Jansuwan, S., Christensen, K., Chen, A. (2013) Assessing the transportation needs of low-mobility individuals: Case study of a small urban community in Utah. Journal of Urban Planning and Development 139(2), 104-114. Doi:10.1061/(ASCE)UP.1943-5444.0000142.

- Kitthamkesorn, S., Chen, A. (2013) A path-size weibit stochastic user equilibrium model. Transportation Research Part B 57, 378-397. Doi:10.1016/j.trb.2013.06.001.

- Ryu, S., Chen, A., Kim, Y. (2013) Investigating travel time reliability measures in toll design problem. Asian Transport Studies 2(3), 253-268.

- Shao, H., Lam, W.H.K., Sumalee, A., Chen, A. (2013) Journey time estimator for assessment of road network performance under demand uncertainty. Transportation Research Part C 35, 244-262. Doi: 10.1016/j.trc.2012.12.002.

- Xie, S., Wong, S.C., Lam, W.H.K., Chen, A. (2013) Development of a bi-directional pedestrian stream model with oblique intersecting angle. Journal of Transportation Engineering 139(7), 678-685. Doi: 10.1061/(ASCE)TE.1943-5436.0000555.

- Xu, X., Chen, A. (2013) C-logit stochastic user equilibrium problem with elastic demand. Transportation Planning and Technology 36(5), 463-478. DOI:10.1080/03081060.2013.818275.

- Xu, X., Chen, A., Cheng, L. (2013) Stochastic network design problem with fuzzy goals. Transportation Research Record 2399, 23-33. DOI: 10.3141/2399-03. (Recipient of the 2013 ABJ70 Shinya Kilkuchi Best Paper Award from the Artificial Intelligence and Advanced Computing Applications Committee, Transportation Research Board of the National Academies, Washington, D.C., USA).

- Xu, X., Chen, A., Cheng, L. (2013) Assessing the effects of stochastic perception error under travel time variability. Transportation 40(3), 525-548. Doi: 10.1007/s11116-012-9433-6.

- Yang, C., Chen, A., Xu, X. (2013) Improved partial linearization algorithm for solving the combined travel-destination-mode-route choice problem. Journal of Urban Planning and Development 139(1), 22-32. Doi:10.1061/(ASCE)UP.1943-5444.0000130.

- Yang, C., Chen, A., Xu, X., Wong, S.C. (2013) Sensitivity-based uncertainty analysis of a combined travel demand model. Transportation Research Part B 57, 225-244. Doi:10.1016/j.trb.2013.07.006.

2012

- Chen, A., Chootinan, P., Ryu, S., Lee, M., Recker, W. (2012) An intersection turning movement estimation procedure based on path flow estimator. Journal of Advanced transportation 46(2), 161-176. Doi: 10.1002/atr.151.

- Chen, A., Chootinan, P., Ryu, S., Wong, S.C. (2012) Quality measures for origin-destination estimation from traffic counts: A review and a generalized demand scale measure. Journal of Transportation Engineering 138(11), 1340-1349. Doi: 10.1061/(ASCE)TE.1943-5436.0000437.

- Chen, A., Pravinvongvuth, S., Xu, X., Ryu, S., Chootinan, P. (2012) Examining the scaling effect and overlapping problem in logit-based stochastic user equilibrium models. Transportation Research Part A 46(8), 1343-1358. Doi: 10.1016/j.tra.2012.04.003.

- Chen, A., Xu, X. (2012) Goal programming approach to solving the network design problem with multiple objectives and demand uncertainty. Expert Systems with Applications 39(4), 4160-4170. Doi: 10.1016/j.eswa.2011.09.118.

- Chen, A., Zhou, Z., Xu, X. (2012) A self-adaptive gradient projection algorithm for solving the nonadditive traffic equilibrium problem. Computers and Operations Research 39(2), 127-138. Doi:10.1016/j.cor.2011.02.018.

- He, X., Chen, A., Chaovalitwongse, W.A., Liu, H. (2012) An improved linearization technique for a class of quadratic 0-1 programming problems. Optimization Letters 6(1), 31-41. Doi 10.1007/s11590-010-0249-z.

- Jansuwan, S., Chen, A., Ryu, S. (2012) An alternative planning tool for a small metropolitan planning organization in Utah. Transportation Research Record 2307, 68-79. Doi: 10.3141/2307-08.

- Xu, X., Chen, A., Zhou, Z., Behkor, S. (2012) Path-based algorithms for solving C-logit stochastic user equilibrium assignment problem. Transportation Research Record 2279, 21-30. Doi: 10.3141/2279-03.

- Zhou, Z., Chen, A., Behkor, S. (2012) C-logit stochastic user equilibrium model: Formulations and solution algorithm. Transportmetrica 8(1), 17-41. Doi: 10.1080/18128600903489629.

2011

- Chen, A., Kasikitwiwat, P. (2011) Modeling network capacity flexibility of transportation networks. Transportation Research Part A 45(2), 105-117. Doi:10.1016/j.tra.2010.11.003.

- Chen, A., Zhou, Z., Chootinan, P., Ryu, S., Yang, C., Wong, S.C. (2011) Transport network design problem under uncertainty: A review and new developments. Transport Reviews 31(6), 743-768. Doi: 10.1080/01441647.2011.589539.

- Chen, A., Zhou, Z., Lam, W.H.K. (2011) Modeling stochastic perception error in the mean-excess traffic equilibrium model with stochastic travel times. Transportation Research Part B 45(10), 1619-1640. Doi:10.1016/j.trb.2011.05.028.

- Chen, A., Zhou, Z., Ryu, S. (2011) Modeling physical and environmental side constraints in traffic equilibrium problem. International Journal of Sustainable Transportation 5(3), 172-197. Doi: 10.1080/15568318.2010.488277.

- Chootinan, P., Chen, A. (2011) Confidence interval estimation for path flow estimator. Transportation Research Part B 45(10), 1680-1698. Doi: 10.1016/j.trb.2011.07.001.

- Ji, Z., Kim, Y., Chen, A. (2011) Multi-objective -reliable path finding in stochastic networks with correlated link costs: A simulation-based multi-objective genetic algorithm approach (SMOGA). Expert Systems with Applications 38(3), 1515-1528. Doi:10.1016/j.eswa.2010.07.064.

- Kim, J., Chung, J., Chen, A., Son, B. (2011) Decision making analysis under weight uncertainty for transportation network design problem. European Journal of Scientific Research 56 (4), 504-515.

- Manley, M., Kim, Y.S., Christensen, K., Chen, A. (2011) Modeling emergency evacuation of individuals with disabilities in a densely populated airport. Transportation Research Record 2206, 32-38. Doi: 10.3141/2206-05.

- Xu, M., Chen, A., Qu, Y., Gao, Z. (2011) A semi-smooth Newton method for traffic equilibrium problem with a general nonadditive route cost. Applied Mathematical Modeling 35(6), 3048-3062. Doi: 10.1016/j.apm.2010.12.021.

- Yim, K., Wong, S.C., Chen, A., Wong, C.K., Lam, W.H.K. (2011) A reliability-based land use and transportation optimization model. Transportation Research Part C 19(2), 351-362. Doi:10.1016/j.trc.2010.05.019.

2010

- Chen, A., Oh, J., Park, D., Recker, W. (2010) Solving the bicriteria traffic equilibrium problem with variable demand and nonlinear path costs. Applied Mathematics and Computation 217(7) 3020-3031. Doi:10.1016/j.amc.2010.08.035.

- Chen, A., Ryu, S., Chootinan, P. (2010) L∞-norm path flow estimator for handling traffic count inconsistencies: Formulation and solution algorithm. ASCE Journal of Transportation Engineering 136 (6), 565-575. DOI: 10.1061/(ASCE)TE.1943-5436.0000122.

- Chen, A., Zhou, Z. (2010) The α-reliable mean-excess traffic equilibrium model with stochastic travel times. Transportation Research Part B 44(4), 493-513. DOI: 10.1016/j.trb.2009.11.003.

- Chen, A., Kim, J., Lee, S., Kim, Y. (2010) Stochastic multi-objective models for network design problem under demand uncertainty. Expert Systems with Applications 37(2), 1608-1619. DOI: 10.1016/j.eswa.2009.06.048.

- Chen, A., Lee, S., Park, D. (2010) Guest editorial: Data modeling in transport. Transportmetrica 6(1), 1-2. DOI: 10.1080/1812860090292957.

- Chen, A., Pravinvongvuth, S., Chootinan, P. (2010) Scenario-based multiobjective AVI reader location models under different travel demand patterns. Transportmetrica 6(1), 53-78. DOI: 10.1080/18128600902929617.

2009

- Chen, A., Chootinan, P., Recker, W. (2009) Norm approximation method for handling traffic count inconsistencies in path flow estimator. Transportation Research Part B 43(8), 852-872. DOI: 10.1016/j.trb.2009.02.007.

- Chen, A., Kim, J., Lee, S., Choi, J. (2009) Models and algorithm for stochastic network designs. Tsinghua Science and Technology 14(3), 341-351. DOI:

- Yang, C., Chen, A. (2009) Sensitivity analysis of the combined travel demand model with applications. European Journal of Operational Research 198(3), 909-921. DOI: 10.1016/j.ejor.2008.09.044.

- Zhou, Z., Chen, A., Wong, S.C. (2009) Alternative formulations of a combined trip generation, trip distribution, modal split, and trip assignment model. European Journal of Operational Research 198(1), 129-138. DOI: 10.1016/j.ejor.2008.07.041.

- Zhu, J.-S., Lam, W.H.K., Chen, A., Lo, H.K. (2009) Modeling the impacts of turn-delay uncertainties on route choice behavior in signalized road networks. Transportation Research Record 2091, 1-11. DOI: 10.3141/2091-01.

2008

- Xu, M., Chen, A., Gao, Z. (2008) An improved origin-based algorithm for solving the combined distribution and assignment problem. European Journal of Operational Research 188(2), 354-369. DOI: 10.1016/j.ejor.2007.04.047.

- Zhou, Z., Chen, A. (2008) Comparative analysis of three user equilibrium models under stochastic demand. Journal of Advanced Transportation 42(3), 239-263. DOI: 10.1002/atr.5670420304.

2007

- Chen, A., Kim, J., Zhou, Z., Chootinan, P. (2007) Alpha reliable network design problem. Transportation Research Record 2029, 49-57. DOI: 10.3141/2029-06.

- Chen, A., Pravinvongvuth, S., Chootinan, P., Lee, M., Recker, W. (2007) Strategies for selecting additional traffic counts for improving O-D trip table estimation. Transportmetrica 3(3), 191-211. DOI: 10.1080/18128600708685673.

- Chen, A., Yang, C., Kongsomsaksakul, S., Lee, M. (2007) Network-based accessibility measures for vulnerability analysis of degradable transportation networks. Network and Spatial Economics 7(3), 241-256. DOI: 10.1007/s11067-006-9012-5

- Chen, A., Subprasom, K. (2007) Analysis of regulation and policy of private toll roads in a build-operate-transfer scheme under demand uncertainty. Transportation Research Part A 41(6), 537-558. DOI: 10.1016/j.tra.2006.11.009.

- Subprasom, K., Chen, A. (2007) Effects of regulation on highway pricing and capacity choice of a build-operate-transfer scheme. ASCE Journal of Construction Engineering and Management 133(1), 64-71. DOI: 10.1061/(ASCE)0733-9364(2007)133:1(64).

- Zhou, Z., Chen, A., Han, D. (2007) An extended alternating direction method for variational inequalities with linear equality and inequality constraints. Applied Mathematics and Computation 184(2), 769-782. DOI: 10.1016/j.amc.2006.05.205.

2006

- Chen, A., Chootinan, P., Wong, S.C. (2006) New reserve capacity model of a signal-controlled road network. Transportation Research Record 1964, 35-41. DOI: 10.3141/1964-05.

- Chen, A., Subprasom, K., Ji, Z. (2006) A simulation-based multi-objective genetic algorithm (SMOGA) for build-operate-transfer network design problem. Optimization and Engineering Journal 7(3), 225-247. DOI: 10.1007/s11081-006-9970-y.

- Chootinan, P., Chen, A., Horrocks, M., Bolling, D. (2006) Multi-year pavement maintenance programming using a stochastic simulation based genetic algorithm approach. Transportation Research Part A 40(9), 725-743. DOI: 10.1016/j.tra.2005.12.003.

- Chootinan, P., Chen, A. (2006) Constraint handling in genetic algorithms using gradient-based repair method. Computers and Operations Research 33(8), 2263-2281. DOI: 10.1016/j.cor.2005.02.002.

- Lee, M., Chen, A., Chootinan, P., Laabs, W., Recker, W. (2006) Modeling network traffic for planning applications in a small community. Journal of Urban Planning and Development 132(3), 156-159. DOI: 10.1061/(ASCE)0733-9488.

2005

- Chen, A., Chootinan, P., Recker, W. (2005) Examining the quality of synthetic O-D trip table estimated by path flow estimator. ASCE Journal of Transportation Engineering 131(7), 506-513. DOI: 10.1061/(ASCE)0733-947X(2005)131:7(506).

- Chen, A., Ji, Z. (2005) Path finding under uncertainty. Journal of Advanced Transportation, 39(1), 19-37. DOI: 10.1002/atr.5670390104.

- Chootinan, P., Chen, A., Recker, W. (2005) Improved path flow estimator for estimating origin-destination trip tables. Transportation Research Record 1923, 9-17. DOI: 10.3141/1923-02.

- Chootinan, P., Wong, S.C., Chen, A. (2005) A reliability-based network design problem. Journal of Advanced Transportation 39(3), 247-270. DOI: 10.1002/atr.5670390303.

- Chootinan, P., Chen, A., Yang, H. (2005) A bi-objective traffic counting location model for origin-destination trip table estimation. Transportmetrica, 1(1), 65-80. DOI: 10.1080/18128600508685639

- Pravinvongvuth, S., Chen, A. (2005) Adaptation of the paired combinatorial logit model to the route choice problem. Transportmetrica 1(3), 223-240 (Conference version won the HKSTS Outstanding Student Paper Award). DOI: 10.1080/18128600508685649.

2004

- Chen, A., Chootinan, P., Pravinvongvuth, S. (2004) Multiobjective model for locating automatic vehicle identification readers. Transportation Research Record 1886, 49-58. DOI: 10.3141/1886-07.

- Chen, A., Yang, C. (2004) Stochastic Transportation network design problem with spatial equity constraint. Transportation Research Record 1882, 97-104. DOI: 10.3141/1882-12.

-Liu, H., Recker, W., Chen, A. (2004) Uncovering the contribution of travel time reliability to dynamic route choice using real-time loop data. Transportation Research Part A 38(6), 435-453. DOI: 10.1016/j.tra.2004.03.003.

2003

- Chen, A., Subprasom, K., Ji, Z. (2003) Mean-variance model for the build-operate-transfer model under demand uncertainty. Transportation Research Record 1857, 93-101. DOI: 10.3141/1857-11.

- Chen, A., Kasikitwiwat, P., Ji, Z. (2003) Solving the overlapping problem in route choice with paired combinatorial logit model. Transportation Research Record 1857, 65-74. DOI: 10.3141/1857-08.

- Lee, D.-H., Nie, Y., Chen, A. (2003) A conjugate gradient projection algorithm for the traffic assignment problem. Mathematical and Computer Modeling 37 (7-8), 863-878. DOI: 10.1016/S0895-7177(03)00090-6.

2002

- Chen, A., Jayakrishnan, R., Tsai, W.K. (2002) Faster Frank-Wolfe traffic assignment algorithm: A new flow update scheme. ASCE Journal of Transportation Engineering 128(1), 31-39. DOI: 10.1061/(ASCE)0733-947X(2002)128:1(31).

- Chen, A., Ji, Z., Recker, W. (2002) Travel time reliability with risk sensitive travelers. Transportation Research Record 1783, 27-33. DOI: 10.3141/1783-04.

- Chen, A., Lee, D.-H., Jayakrishnan, R. (2002) Computational study of state-of-the-art path-based traffic assignment algorithms. Mathematics and Computers in Simulation 59(6), 509-518. DOI: 10.1016/S0378-4754(01)00437-2.

- Chen, A., Yang, H., Lo, H.K., Tang, W. (2002) Capacity reliability of a road network: An assessment methodology and numerical results. Transportation Research Part B 36(3), 225-252. DOI: 10.1016/S0191-2615(00)00048-5.

- Lee, D.-H., Nie, Y., Chen, A., Leow, Y.C. (2002) Link and path based traffic assignment algorithms: a computational and statistical study. Transportation Research Record 1783, 80-88. DOI: 10.3141/1783-11.

2001

- Chen, A. (2001) Effects of flow update strategies on implementation of the Frank-Wolfe algorithm for the traffic assignment problem. Transportation Research Record 1771, 132-139. DOI: 10.3141/1771-17.

- Chen, A., Lo, H.K., Yang, H. (2001) A self-adaptive projection and contraction algorithm for the traffic equilibrium problem with path-specific costs. European Journal of Operational Research 135(1), 27-41. DOI: 10.1016/S0377-2217(00)00287-3.

- Chen, A., Subprasom, K., Chootinan, P. (2001) Assessing financial feasibility of a build-operate-transfer project under uncertain demand. Transportation Research Record 1771, 124-131. DOI: 10.3141/1771-16.

- Oh, J., Jayakrishnan, R., Chen, A., Yang, H. (2001) Parametric evaluation for route guidance systems with analysis of sustainable driver compliance. Transportation Research Record 1771, 18-27. DOI: 10.3141/1771-03.

2000 or earlier

- Chen, A., Tatineni, M., Lee, D.-H., Yang, H. (2000) Effect of route choice models on estimating network capacity reliability. Transportation Research Record 1733, 63-70. DOI: 10.3141/1733-09.

- Lo, H.K., Chen, A. (2000) Traffic equilibrium problem with route-specific costs: Formulation and algorithms. Transportation Research Part B 34(6), 493-513. DOI: 10.1016/S0191-2615(99)00035-1.

- Lo, H.K., Chen, A. (2000) Reformulating the general traffic equilibrium problem via a smooth gap function. Mathematical and Computer Modeling 31(2-3), 179-195. DOI: 10.1016/S0895-7177(99)00231-9.

- Chen, A., Yang, H., Lo, H.K., Tang, W. (1999) A capacity related reliability for transportation networks. Journal of Advanced Transportation 33(2), 183-200. DOI: 10.1002/atr.5670330207.

- Jayakrishnan, R., Chen, A., Tsai, W.K. (1999) Freeway and arterial traffic flow simulation analytically embedded in dynamic assignment. Transportation Research Record 1678, 242-250. DOI: 10.3141/1678-29.

- Lo, H.K., Chen, A., Yang, H. (1999) System time minimization in route guidance with elastic market penetration. Transportation Research Record 1667, 25-32. DOI: 10.3141/1667-04.

- Jayakrishnan, R., Tsai, W.K., Chen, A. (1995) A dynamic traffic assignment model with traffic flow relationships. Transportation Research Part C 3(1), 51-72. DOI: 10.1016/0968-090X(94)00015-W.

Dawei Cheng (Sept. 2023 – present)

- Email: dawei.cheng@connect.polyu.hk

Kai Qu (Aug. 2022 – present)

- Email: kkkai.qu@connect.polyu.hk

Yiyang Peng (Jan. 2022 – present)

- Email: yiyang.peng@connect.polyu.hk

Zhuowei Wang (Sept. 2021 – present)

- Email: zhuowei.wang@connect.polyu.hk

Zhengyang Li (Aug. 2020 – present)

- Email: zhengyang.li@connect.polyu.hk

Umer Mansoor (Aug. 2020 – present)

- Email: umer1.mansoor@connect.polyu.hk

Daniyar Kurmankhojayev (Aug. 2019 – present)

- Email: daniyar.kurmankhojayev@connect.polyu.hk

Yu Gu (Jan. 2019 – present)

- Email: frank.gu@connect.polyu.hk

Research Assistants

Yingying Xu (2023)

- Dissertation title: Functional analysis of urban rail transit (URT) networks in China.

- Current Position: Postdoctoral Fellow, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong.

Hongliang Ding (Co-advise with Dr. Tony Sze, Sept. 2022)

- Dissertation title: Understanding and analysis of bicycle travel and safety.

- Current Position: Postdoctoral Fellow, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong.

Khoa D. Vo (Co-advise with Prof. W. Lam, Oct. 2022)

- Dissertation title: Modeling household joint activity-travel choices in multi-modal transportation networks: An activity-based network equilibrium approach.

- Current Position: Researcher at Ho Chi Minh City University of Technology, Vietnam.

Vahid Asghari (Co-advise with Dr. Mark Hsu, March 2022)

- Dissertation title: Upscaling infrastructure asset management systems under complex uncertainties to network assets using machine learning.

- Current Position: Postdoctoral Fellow, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong.

Guoyuan Li (2022)

- Dissertation title: An integrated path flow estimator methodology for multi-modal transportation networks.

- Current Position: Postdoctoral Fellow, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong.

Dianchen Zhu (Co-advise with Dr. Tony Sze, Sept. 2021)

- Dissertation title: Red light running behavior and safety of pedestrians at signalized crossings.

- Current Position: Lecturer, School of Automobile and Traffic Engineering, Hefei University of Technology, China.

Tiantian Chen (Co-advise with Dr. Tony Sze, 2020)

- Dissertation title: Safety of professional drivers in Hong Kong.

- Current Position: Assistant Professor, The Graduate School of Green Transportation (GSGT), Korea Advanced Institute of Science and Technology (KAIST), South Korea.

Mohammad Sadra Sharifi (2016)

- Dissertation title: Analysis and modeling of pedestrian facilities considering individuals with disabilities.

- Current Position: Postdoctoral student, Department of Civil and Environmental Engineering, Utah State University, Utah, USA.

Seungkyu Ryu (2015)

- Dissertation title: Modeling transportation planning applications via path flow estimator.

- Current Position: Postdoctoral student, TOD-based Sustainable Urban Transportation Engineering Research Center, Ajou University, Suwon, Korea.

Sarawut Jansuwan (2013)

- Dissertation title: A quantitative framework for assessing vulnerability and redundancy of freight transportation networks.

- Current Position: Lecturer, Graduate School of Applied Statistics, National Institute of Development Administration (NIDA), Bangkok, Thailand.

Songyot Kitthamkesorn (2013)

- Dissertation title: Modeling overlapping and heterogeneous perception variance in stochastic user equilibrium problem with weibit route choice model.

- Current Position: Lecturer, Department of Civil Engineering, Chiang Mai University, Chiang Mai, Thailand.

Zhong Zhou (2008)

- Dissertation title: Models and algorithms for addressing travel time variability: Applications to the optimal path finding and traffic equilibrium problems.

- Current Position: Senior Transportation Software Developer, Citilabs, Florida, USA.

Surachet Pravinvongvuth (2007)

- Dissertation title: Two location problems in transportation.

- Current Position: Assistant Professor in Transportation Engineering, Asian Institute of Technology, Bangkok, Thailand.

Sirisak Kongsomsaksakul (2007)

- Dissertation title: Assessing transportation network vulnerability using a combined travel demand model.

- Current Position: Assistant Professor in the Department of Teacher Training in Civil Engineering, King Mongkot’s Institute of Technology, North Bangkok Campus, Thailand.

Piya Chootinan (2006)

- Dissertation title: A framework for estimating origin-destination trip tables from observed traffic data: A quality assessment methodology.

- Current Position: Transportation Engineer, Department of Highways, Bangkok, Thailand.

Panatda Kasikitwiwat (2005)

- Dissertation title: Capacity reliability and capacity flexibility of a transportation network.

- Current Position: Assistant Professor and Chair of Department of Civil Engineering, Kasetsart University, Kamphaeng Saen Campus, Thailand.

Kitti Subprasom (2004)

- Dissertation title: Multi-party and multi-objective network design analysis for build-operate-transfer scheme.

- Current Position: Transportation Engineer, Department of Highways, Bangkok, Thailand; Part-time Lecturer at King Mongkut’s Institute of Technology, Thonburi Campus, Thailand.

Completed Postdoctoral Research Associate

Completed Visiting PhD Students

Completed Visiting Faculty/Researcher

Completed Research Assistants

Completed ME Students

The Hong Kong Polytechnic University invites expressions of interest from graduates with evidence of academic excellence, research ability, and good communication, interpersonal and leadership abilities for full-time PhD study within a newly launched Hong Kong PhD Fellowship scheme. The scheme aims to recruit outstanding graduates, irrespective of country of origin and ethnic background, and will provide a 3-year tuition scholarship, a monthly stipend of HK$27,600 (approximately US$3,540) and Conference and Research related travel allowance of HK$13,800 (approximately US$1,770) per year for awardees. The applicants should have satisfactory TOEFL (Paper-based: overall≥550 and writing≥4; Internet-based: overall≥80 and writing≥23) or IELTS (Overall≥6.5, Writing≥=6.0) scores. Please visit the RGC's website (http://www.rgc.edu.hk/hkphd) or Universityˇs website (http://www.polyu.edu.hk/ro/hkphd-fellowship/) for further details.

We are looking for exceptionally motivated graduate students who intend to pursue Ph.D. degree in Transportation Engineering. The starting date will be March-September each year. The applicants should have satisfactory TOEFL (Paper-based: overall≥550 and writing≥4; Internet-based: overall≥80 and writing≥23) or IELTS (Overall≥6.5, Writing≥6.0) scores, preferably with a master degree in Transportation Engineering other related fields. The monthly stipend of the university PhD studentship is HK$27,290/HK$18,470 (approximately US$3,500/US$2360) for a maximum of three years. Conference and research related allowance are also available. Please visit PolyU website (http://www.polyu.edu.hk/gs/prospective-students/fellowship-scholarship-schemes) for further details.

The "Hong Kong Scholars Program" is a program where the Mainland Government effectively recommends top PhD graduates to work in Hong Kong. The annual quota for the program is about 50. Selected candidates from Mainland will contact and exchange ideas with Hong Kong Supervisors to formulate the research plan and submit a proposal to the Society of Hong Kong Scholars. The successful "Hong Kong Scholars" will be hired by Hong Kong Supervisors following established local human resources procedures of the university. The monthly salary for the Hong Kong Scholars has been fixed at HK$25,000. Hong Kong Supervisors are only required to pay half the monthly salary (i.e. HK$ 12,500); the remaining half will be paid (RMB 12,500) directly to the postdoctorates by the Ministry of Human Resources and Social Security of China. For the mode of operation and application procedures of the "Hong Kong Scholars Program", please refer to website: https://www.hkscholars.org/.

Short-term research assistant/associate positions are available for six to twelve months, with possible extension depending on performance. Interested applicants should send your CV and indicate potential areas of collaboration. For enquiry, please contact Prof. Anthony Chen (anthony.chen@polyu.edu.hk).