Publications

Books and Book Chapters

Zhang, H. M. Guest Editor, Special Issue on Traffic Flow Theory, Vol. 1&2, Journal of Networks and Spatial Economics. 2001.
Zhang, H. M (Co-authored with R. Kuhne and P. Michalopoulos) Chapter 3. Continuum flow models, in Monograph on Traffic Flow Theory, 3rd edition. 2003.
Zhang, H. M. Guest Co-Editor, Special Issue on Traffic Traffic Computational Models, Journal of Computer Aided Civil and Infrastructure Engineering . 2007.

Peer-reviewed Journal Papers

(A full list of publications can be found through Google Scholar: https://scholar.google.com/citations?user=HmCHxxkAAAAJ&hl=en)

H. Zhang and S. G. Ritchie. “A real-time decision-support system for freeway management and control.” ASCE Journal of Computing in Civil Engineering, pp.35-51. 1994.
H. Zhang*, Ritchie, S. G. and W. W. Recker. “Some general results on the optimal ramp control Problem.” Transportation Research Part C, Vol. 4, No. 2, pp. 51-69. 1996.
H. Zhang*, Ritchie, S. G. and Z. Lo. “Macroscopic Modeling of Freeway Traffic Using an Artificial Neural Network.” Transportation Research Record, Vol 1588, 110-119. 1997.
H. Zhang* and S. G. Ritchie. “Freeway ramp metering using artificial neural networks”, Transportation Research Part C, Vol. 5, No. 5, 273-286. 1997.
H. M. Zhang*. “A theory of non-equilibrium traffic flow.” Transportation Research Part B, 32(7):485-498. 1998.
H. M. Zhang*. “A mathematical theory of traffic hysteresis.” Transportation Research Part B, 33(1):1-23. 1999.
H. M. Zhang*. “An analysis of the stability and wave properties of a new continuum theory”, Transportation Research Part B, 33(6): 387-398. 1999.
H. M. Zhang* and W. W. Recker. “On optimal freeway ramp control policies for traffic corridors.” Transportation Research Part B, 33(6):417-436. 1999.
H. M. Zhang* and T. Wu. “Numerical simulation and analysis of traffic flow.” Transportation Research Record, Vol 1678, 251-260. 1999.
H. M. Zhang*. “A journey speed model for arterial traffic.” Transportation Research Record, Vol 1676, 109-115. 1999.
H. M. Zhang*. “ Phase transitions in a non-equilibrium traffic theory.” Journal of Transportation Engineering, Vol. 126, No. 1, 1-12. 2000.
H. M. Zhang*. “Structural properties of solutions arising from a nonequilibrium traffic flow theory.” Transportation Research Part B, 34, 583-603. 2000.
H. M. Zhang* and T. Kim. “Effects of Relaxation and Anticipation on Riemann Solutions of the PW Model: A Numerical Investigation.” Transportation Research Record, Vol 1710, 131-135. 2000.
H. M. Zhang*. “A note on highway capacity.” Transportation Research Part B, 35, 929-937. 2001.
H. M. Zhang*, Ritchie, S. G. and R. Jayakrishnan. “Coordinated Traffic-Responsive Ramp Control via Nonlinear State Feedback.” Transportation Research Part C, Vol. 9. 337-352, 2001.
H. M. Zhang*. “Recursive Prediction of Traffic Conditions with Neural Network Models.” Journal of Transportation Engineering, Vol. 126, No. 6, 472-481, 2001.
H. M. Zhang*. “ A Finite Difference Approximation of a Non-Equilibrium Traffic Flow Model.” Transportation Research Part B, 35, 337-365, 2001.
H. M. Zhang*. “ New Perspectives on Continuum Traffic Flow Models.” Networks and Spatial Economics, Vol. 1, 9-33, 2001.
T. Li and H. M. Zhang*. “The Mathematical Theory of an Enhanced Nonequilibrium Traffic Flow Model.” Networks and Spatial Economics, Vol. 2, 167-177. 2001.
H. M. Zhang* and W. L. Jin. “A Kinematic Wave Traffic Flow Model for Mixed Traffic.” Transportation Research Record, Vol 1802: 197-204. 2002.
H. M.Zhang*. “A Non-Equilibrium Traffic Model Devoid of Gas-like Behavior.” Transportation Research Part B, 36, 275-290. 2002.
H. M. Zhang*. “On the Consistency of a Class of Traffic Flow Models.” Transportation Research Part B, 37, 101-105. 2003.
H. M. Zhang*. “Anisotropic Property Revisited-Does it Hold in Multi-Lane Traffic?” Transportation Research Part B, 37, 561-577. 2003.
H. M. Zhang*. “Driver Memory, Traffic Viscosity and a Viscous Traffic Flow Model.” Transportation Research Part B, 37, 27-41. 2003.
W. L. Jin and H. M. Zhang*. “The Formation and Structure of Vehicle Clusters in the Payne-Whitman Traffic Flow Model.” Transportation Research Part B, 37, 207-223. 2003.
W. L. Jin and H. M. Zhang*. “On the Distribution Schemes for Determining Flows through a Merge.” Transportation Research Part B, 37, issue 6, 521-540. 2003.
Y. E. Ge, H. M. Zhang and W. H. K. Lam. “Network Reserve Capacity under the Influence of Traveler Information.” ASCE Journal of Transp ortation Engineering, Vol. 129, No. 3, 262-270. 2003.
W. L. Jin and H. M. Zhang*. “Nonequilibrium Continuum Traffic Flow Model with Frozen Sound Wave Speed.” Transportation Research Record, Vol 1852. 183-192. 2003.
W. L. Jin and H. M. Zhang*. “The Inhomogeneous Kinematic Wave Traffic Flow Model as a Resonant Nonlinear System.” Transportation Science, Vol. 37, No. 3, 294-311. 2003.
Y. Zheng, B. Wang, H. M. Zhang and D. Niemeier. “Bicubic Spline Interpolation Approach to the Development of Spatial Allocation Factors for Zone-Level Mobile Source Emissions.” Transportation Research Part B, 38, 751-766. 2004.
L. Chu, H. X. Liu, W. Recker, and H. M. Zhang. “Performance Evaluation of Adaptive Ramp Metering Algorithms.” ASCE Journal of Transportation Engineering, Vol. 130, No. 3, 330-338. 2004.
Y. Nie, H. M. Zhang* and D-H Lee. “Models and Algorithms for the Traffic Assignment Problem with Link Capacity Constraints.” Transportation Research Part B, 38, 285-312. 2004.
H. M. Zhang* and Y. E. Ge. “Modeling Variable Demand Equilibrium under Second-Best Road Pricing.” Transportation Research Part B, 38, 733-749. 2004.
W. L. Jin and H. M. Zhang*. “Multicommodity Kinematic Wave Simulation Model for Network Traffic Flow.” Transportation Research Record, Vol 1883. pp 59-67, 2004.
H. M. Zhang* and X. J. Nie. “Some consistency conditions for dynamic traffic assignment problems.” Networks and Spatial Economics, Vol. 5, Issue 1. 71-87. 2005.
X. J. Nie and H. M. Zhang*. “The Delay-Function-Based Link Models: their propertiesand computational issues.” Transportation Research Part B, 39, 729-751. 2005.
Y. Nie, H. M. Zhang and W. W. Recker. “Inferring origindestination trip matrices with a decoupled GLS path flow estimator.” Transportation Research Part B, 39, 497-518. 2005.
X. J. Nie and H. M. Zhang*. “A comparative study of some macroscopic link models used in dynamic traffic assignment.” Networks and Spatial Economics, Vol. 5, Issue 1. 89-115. 2005.
H. M. Zhang* and T. W. Kim. “A New Car-Following Theory for Multiphase Traffic Flow.” Transportation Research Part B, 39, 385-399. 2005.
X. Zhang, H. Yang, H-J Huang and H. M. Zhang. “Integrated Scheduling of Daily Working Activity and Morning-evening Commutes with Bottleneck Congestion.” Transportation Research Part A, Vol 39, 41-60. 2005.
H. Lin, Q. Fu and H. M. Zhang. “Moving bottleneck theory-based new countermeasure for influence of heavy vehicles.” Journal of Tongji University (Natural Science), Pages: 1209-13. Published: 09 2007 Sept. 2007
W. Shen, Y. Nie and H. M. Zhang*. “A Dynamic Network Simplex Method For Designing Emergency Evacuation Plans.” Transportation Research Record, Vol 2022, 83-93, 2007.
J. T. Ma, Y. Nie and H. M. Zhang*. “Calibration of Microsimulation with Heuristic Optimization Methods.” Transportation Research Record, Vol 1999, pp. 208-217, 2007.
T. Kim and H. M. Zhang*. “A stochastic wave propagation model.” Transportation Research Part B, Volume 42, Issues 7-8, August, Pages 619-634, 2008.
X. Yang, Q. Fu and H. M. Zhang. “Operation mechanism of traffic flow in join area of expressway and on-ramp.” Journal of Tongji University (Natural Science), Pages: 1652-5. Published: 12 2008 Dec. 2008
Y. Nie, Jingtao Ma and H. M. Zhang. “A polymorphic dynamic network loading model.” Computer-Aided Civil and Infrastructure Engineering, 23 (2), 86 – 103, 2008.
W. Shen and H. M. Zhang. “What Do Different Traffic Flow Models Mean for System-Optimal Dynamic Traffic Assignment in a Many-to-One Network?” Transportation Research. Record, Vol 2088 , Pages 157-166, 2008.
Y. Nie and H. M. Zhang. “A variational inequality approach for inferring dynamic origin destination travel demands.” Transportation Research Part B, 42, 635-662, 2008.
H. M. Zhang*, Y. Nie and Zhen Qian. “Estimating Time-Dependent Freeway Origin-Destination Demands with Different Data Coverage: Sensitivity Analysis.” Transportation Research Record, Vol 2047 Pages 91-99, 2008.
Y. Nie and H. M. Zhang. “Oscillatory traffic flow patterns induced by queue spillback in a simple road network.” Transportation Science, 42 (2), 236-248, 2008.
X. Zhang,, H. Huang, H. M. Zhang. “Integrated daily commuting patterns and optimal road tolls and parking fees in a linear city.” Transportation Research Part B, Vol 42, pp38-56, 2008.
W. Shen and H. M. Zhang. “On the morning commute problem in a corridor network with multiple bottlenecks: Its system-optimal traffic flow patterns and the realizing tolling scheme.” Transportation Research Part B, Volume 43, 2009.
Y. Nie and H. M. Zhang. “Numerical solution procedures for the morning commute problem.” Mathematical and Computer Modelling, volume 49, issue 7-8, pp. 1295 – 1310, 2009.
B. Liu, B. Kahorashadi, H. Du, D. Ghosal, C. N. Chuah and H. M.Zhang. “VGsim: An integrated networking and microscopic vehicular mobility simulation platform.” IEEE Communications Magazine, pp 134-141, 2009.
H. M. Zhang* and W. Shen. “ A Numerical Investigation of the Stop-and-Go Traffic Patterns Upstream of a Freeway Lane-drop.” Transportation Research Record, Vol 2124. 3-17. 2009.
H. M. Zhang*, J. T. Ma and Y. Nie. “A Local Synchronization Control Scheme for Congested Interchange Areas in a Freeway Corridor.” Transportation Research Record, Vol 2128. p.173. 2009
H. M. Zhang*. “What Faster-than-traffic Characteristic Speeds Mean for Vehicular Traffic Flow.” The European Physical Journal B: Condensed Matter and Complex Systems, Vol. 69 No. 4. p. 563. 2009
X.N. Zhang and H. M. Zhang. “ Simultaneous departure time/route choices in queuing networks and a novel paradox.” Networks and Spatial Economics. Volume 10, Number 1, 93-112. 2010
Y. Nie and H. M. Zhang. “Solving the dynamic user optimal assignment problem considering queue spillback.” Networks and Spatial Economics. Volume 10, Number 1, 49-71. 2010
Y. Nie and H. M. Zhang. “A Relaxation Approach for Estimating Origin-Destination Trip Tables.” Networks Spatial Economics. Volume 10, Number 1, 147-172. 2010
X.N. Zhang, H. M. Zhang and L.Y. Li “Analysis of user equilibrium traffic patterns on bottlenecks with time-varying capacities and their applications.” Journal of Sustainable Transportation, 4:56-74. 2010.
H. M.Zhang* and W. Shen. “Access Control Policies without Inside Queues: Formulations, Properties, and Public Policy Implications.” Transportation Research Part Part B, Volume 44, Issues 8-9, Pages 1132-1147. 2010.
W. Shen and H. M. Zhang* “Pareto-improving ramp metering strategies for reducing congestion in the morning commute.” Transportation Research Part A, Volume 44, Issue 9, November 2010, Pages 676-696. 2010.
X. Zhang, H. M. Zhang, H. Huang, L. Sun and T. Tang. “Competitive, cooperative and Stackelberg congestion pricing for multiple regions in transportation networks.” Transportmetrica, 4:56-74, 2010.
B. Khorashadi, C. Chuah, D. Ghosal, H. Michael Zhang. “Distributed Automated Incident Detection with Vgrid.” IEEE Wireless Communication Magazine, Volume: 18 , Issue: 1. Page(s): 64- 73. February 2011.
Z. Qian and H. M. Zhang*. “Modeling Multimodal Morning Commute in a One-to-One Corridor Network.” Transportation Research Part C, Vol. 19, Pages 254-269. 2011.
Taewan Kim, H. M. Zhang. “Interrelations of Reaction Time, Driver Sensitivity, and Time Headway in Congested Traffic.” Transportation Research Record,Volume 2249. Pages 52-61. 2011
F. Xiao, Z. Qian and H. M. Zhang*. “The Morning Commute Problem with Coarse Toll and Nonidentical Commuters.” Network and Spatial Economics, Vol 11, 343-369. 2011.
Z. Qian, F. Xiao and H. M. Zhang*. “The economics of parking provision for the morning commute.” Transportation Research Part A, Volume 45, Issue 9, Pages 861-879. November 2011.
Jia Li and H. M. Zhang*. “Fundamental Diagram of Traffic Flow: New Identification Scheme and Further Evidence from Empirical Data.” Transportation Research Record, Volume 2260, Pages 50-59, 2011
B. Liu, B. Khorashadi, D. Ghosal, C. Chuah and H. M. Zhang. “Analysis of the information storage capability of VANET for highway and city traffic.” Transportation Research Part C, Volume 23, Pages 68-84. August 2012.
Z. Qian, F. Xiao and H. M. Zhang*. “Managing morning commute traffic with parking.” Transportation Research Part B, Volume 46, Issue 7, Pages 894916, August 2012.
Z. Qian, W. Shen, H. M. Zhang*. “System-optimal dynamic traffic assignment with and without queue spillback: Its path-based formulation and solution via approximate path marginal cost.” Transportation Research Part B, Vol.46(7), pp. 874-893. May 2012
B. Liu, D. Ghosal, C. Chuah and H. M. Zhang. “Reducing Greenhouse Effects via Fuel Consumption-Aware Variable Speed Limit (FC-VSL).” IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, Volume: 61 , Issue: 1 Page(s): 111 – 122. 2012
Z. Qian and H. M. Zhang*. “Computing Individual Path Marginal Cost in Networks with Queue Spillbacks.” Transportation Research Record, Volume 2263 / 2011. Pages 9-18. February 27, 2012
F. Xiao, W. Shen and H M Zhang*. “ The Morning Commute under Flat Toll and Tactical Waiting.” Transportation Research Part B, 46, 1346-1359, 2012.
Z. Qian and H. M. Zhang*. “On Centroid Connectors in Static Traffic Assignment: their effects on flow patterns and how to optimize their selection.” Transportation Research Part B, Vol.46 (10), 1489-1503. 2012.
Z. Qian and H. M. Zhang*. “A Hybrid Route Choice Model for Dynamic Traffic Assignment.” Networks Spatial Economics. DOI 10.1007/s11067-012-9177-z, May 2012.
H. M. Zhang*, Y.R. Chen, R. Lim and Z. Qian.“What happens when a major freeway is under repair.” Transportation Research Record, Volume 2278, 134-144, 2012.
Z. Qian and H. M. Zhang. “Full Closure or Partial Closure? Evaluation of Construction Plans for the I-5 Closure in Downtown Sacramento.” ASCE Journal of Transportation Engineering, in press, doi: 10.1061/(ASCE)TE.1943- 5436.0000502. 2012.
F. Xiao and H. M. Zhang*.“ Pareto-Improving and Self-Sustainable Pricing for the Morning Commute. ” Transportation Science, IN PRESS (Accepted 2012).
H. Deng and H. M. Zhang*.“Car following considering driver anticipation.” Transportation Research Record, IN PRESS (Accepted 2012).
J. Li and H. M. Zhang*.“Modeling Space-Time Inhomogeneities with the Kinematic Wave Theory.” Transportation Research Part B. Accepted Dec. 2012.
W. L. Jin and H. M. Zhang. “An instantaneous kinematic wave theory of diverging traffic.” Transportation Research Part B. Accepted Dec 2012.
K. Pandit, D. Ghosal, H. M. Zhang and C.N. Chuah.“Adaptive Traffic Signal Control with Vehicular Ad hoc Networks (VANET).” IEEE Transactions on Vehicular Technology. Accepted Jan 2013.
C. Jin, W. Wang, R. Jiang, H. M.Zhang and H.Wang.“ Spontaneous phase transition from free flow to synchronized flow in traffic on a single lane highway.” Physical Review E. Accepted Jan 2013.
J. Li and H. M.Zhang. “The variational formulation of a non-equilibrium traffic flow model: theory and implications.” Accepted for podium presentation at the 20th International Symposium on Transportation and Traffic Theory and to appear in the Transportation Research series. 2012.
R. Yao and H. M. Zhang.“Optimal Allocation of Lane Space and Green Splits of Isolated Signalized Intersections with Short Left-Turn Lanes.” Journal of Transportation Engineering. 2012. Accepted with minor revision, Jan 2013.
Z. Qian and H. M. Zhang*. “The Morning Commute Problem with Heterogeneous Travelers: The Case of Continuously Distributed Parameters.” Transportmetrica A: Transport Science, Volume 9, Issue 2, pages 178-203. 2013
S. Tang and H. M. Zhang*.“Primal-Dual Heuristic for Path Flow Estimation in Medium-Sized to Large Networks.” Transportation Research Record. Accepted on Jan 30, 2013.

Papers in the ISTTT Series

(A peer reviewed series since 1959, acceptance rate approximately 1/10. Papers accepted for podium presentation are published in the Transportation Research journal series from the 18th conference onward.)

H. M. Zhang* and W. Lin. “Some Recent Developments in Continuum Vehicular Traffic Flow Theory”. Proceedings of the 15th International Symposium on Transportation and Traffic Theory (ISTTT). July 2002. Adelaide, Australia.
W. Shen, Y. Nie and H. M. Zhang*. “On Path Marginal Cost Analysis and its Relationship to Dynamic System-optimal Traffic Assignment.” Proceedings of the 17th International Symposium on Transportation and Traffic Theory, July 2007, London.
Zhen Qian and H. M. Zhang* “ Modeling Multimodal Morning Commute in a One-to-One Corridor Network.” Companion Volume of the 18th International Symposium on Transportation and Traffic Theory (ISTTT). July 2009, Hong Kong.
H. M. Zhang*, Z.Qian and F. Xiao. “The Economics of Competitive Parking Spaces.” 19th International Symposium on Transportation and Traffic Theory (ISTTT). July 2011, Berkeley.
J. Li and H. M.Zhang. “The variational formulation of a non-equilibrium traffic flow model: theory and implications.” Accepted for podium presentation at the 20th International Symposium on Transportation and Traffic Theory, 2012.

Papers in Conference Proceedings

H. Zhang and S. G. Ritchie “A Real-Time Decision-Support System for Freeway Management and Control,” Proceedings of Engineering Foundation International Conference on Artificial Intelligence Applications in Transportation Engineering, S.G. Ritchie and C. Hendrickson, eds., San Buenaventura, California, 39-58. 1992.
H. Zhang, Ritchie, S. and Z. Lo “A Local Neural Network Controller for Freeway Ramp Metering,” in Transportation Systems: Theory and Application of Advanced Technology. Volume 2. Pergamon, Oxford, England, 655-658. 1995.
H. M. Zhang and W.-H. Lin “ Some Recent Developments in Traffic Flow Theory,” IEEE Intelligent Transportation Systems Proceedings. 548-553. 2001.
H. M. Zhang, R. Jayakrishan and W. Recker “An Optimization Algorithm for Freeway Traffic Control,” IEEE Intelligent Transportation Systems Proceedings, 100-105.2001.
Y. Nie, X. J. Nie and H. M. Zhang. “The Relative Performance of Time-Dependent Shortest Paths Algorithms: A Network Expansion Perspective,” the 8th ASCE AATT International Conference, Beijing, China. May 2004.
Taewan Kim and H. M. Zhang. “Gap Time and Stochastic Wave Propagation.” In Proceedings of the 2004 IEEE Intelligent Transportation Systems Conference (in CD-ROM), Washington, D.C., USA, October 3-6, 2004. Paper MoC4.3
Taewan Kim and H. M. Zhang. “An empirical study on gap time and its relation to the fundamental diagram of traffic flow.” In Proceedings of the 2004 IEEE Intelligent Transportation Systems Conference (in CD-ROM), Washington, D.C., USA, October 3-6, 2004. Paper MoC4.4
H. C. Chang, H. Du, J. Anda, C. N. Chuah, D. Ghosal, and H. M. Zhang. “Enabling Energy Demand Response with Vehicular Mesh Networks,” IEEE/IFIP Intl Conference on Mobile and Wireless Communication Networks (MWCN), October 2004.
J. LeBrun, C. N. Chuah, D. Ghosal, and H. M. Zhang, “Knowledge-Based Opportunistic Forwarding in Vehicular Wireless Ad Hoc Networks,” IEEE Vehicular Technology Conference, May 2005.
J. Anda, J. LeBrun, D. Ghosal, C. N. Chuah, and H. M. Zhang, “VGrid: Vehicular Ad Hoc Networking and Computing Grid for Intelligent Traffic Control,” IEEE VTC 2005.
W. Shen, Y. Nie, and H. Michael Zhang “Path-based System Optimal Dynamic Traffic Assignment Models: Formulations and Solution Method.” In Proceedings (CD-ROM) of the 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, 2006. Paper WA2.4
Will Recker, Michael Zhang, Lianyu Chu, Anthony Chen and Michael McNally “Development of methods and tools for managing traffic congestion in freeway corridors.” In Proceedings (CD-ROM) of the 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, 2006. Paper MA1.5
Andrew Chen, Behrooz Khorashadi, Chen-Nee Chuah, Dipak Ghosal, and Michael Zhang “Smoothing Vehicular Traffic Flow using Vehicular-based Ad Hoc Networking & Computing Grid (VGrid).” In Proceedings (CD-ROM) of the 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, 2006. Paper MB6.1
H. M. Zhang and H. DU “A three-regime car-following model and its wave properties.” In Proceedings (CD-ROM) of the 2006 International Transport Simulation Symposium. September, 2006. Lausanne, Switzerland. Paper P019
B. Khorashadi, A. Chen, D. Ghosal, C-N. Chuah, and H. M. Zhang “Impact of Transmission Power on the Performance of UDP in Vehicular Ad Hoc Networks,” in IEEE Proc. International Conference on Communications (ICC), June 2007.
B. Khorashadi, Andrew Chen, Chen-Nee Chuah, Dipak Ghosal, Michael Zhang “Impact of Transmission Power on the Performance of TCP in Vehicular Ad Hoc Networks,” WONS 2007
C-N. Chuah, H. Du, D. Ghosal, B. Khorashadi, B. Liu, C. Smith, and H. M. Zhang “Distributed Vehicular Traffic Control and Safety Applications with VGrid, IEEE Wireless Hive Networks Conference, Austin, TX, August, 2008. 68.
H. Du, M. Zhang, C-N. Chuah, and D. Ghosal “A Finer Resolution Cellular Automata Model for Inter-Vehicle Communication Applications, Transportation Research Board 2008 Annual Meeting, pp 13, January 2008.
Michael Zhang, C.-N. Chuah, D. Ghosal, and B. Liu “Evaluating the Memory Effect of Vehicular Ad Hoc Wireless Mesh Networks”. Proceedings of 2009 NSF Engineering Research and Innovation Conference, Honolulu, Hawaii. June, 2009.
Behrooz Khorashadi, Bojin Liu, Haining Du, Dipak Ghsoal, Chen-Nee Chuah and H. M. Zhang. “Smoothing Vehicular Traffic Flow with VGrid.” 89th Transportation Research Board Annual Meeting CD-ROM. Jan 10-14,2010, Washington D.C..
Bojin Liu, Dipak Ghsoal, Chen-Nee Chuah and H. M. Zhang “Evaluating the Memory Effect of Vehicular Wireless Mesh.” INFORCOM 2010 mini conference.
B. Liu, D. Ghosal, Y. Dong, C-N. Chuah, and H. M. Zhang, “CarbonRecorder: A Mobile-Social Vehicular Carbon Emission Tracking Application Suite,” IEEE Wireless Vehicular Communications Demo Track, September 2011.
Z. Qian and H. M. Zhang. “Dynamic Modeling of Work Zone Traffic and its Spillover Effect in Large-scale Networks: Methodology and its Application to the Fix I-5 Project.” The 89th Transportation Research Board Annual Meeting CD-ROM. Jan 2012, Washington D.C..
Ying-en Ge; Bingrong Sun; Xizhao Zhou; H. Michael Zhang; WY Szeto. “A Comparison of Dynamic User Optimal States with Zero, Fixed and Variable Tolerances.” Paper No. NETS318. 4th International Symposium on Dynamic Traffic Assignment: 4-6 June 2012. Marthas Vineyard, Massachusetts, USA
Y. Ji and H. M. Zhang.“Dynamic Holding Strategy to Prevent Buses from Bunching.” The 90th Transportation Research Board Annual Meeting CD-ROM. Jan 2013, Washington D.C..
J. Zhao, W. Ma, X. Yang and H. M. Zhang. “Increasing the Capacity of Signalized Intersections by Dynamically Using Exit-Lanes for Left-Turn Traffic.” The 90th Transportation Research Board Annual Meeting CD-ROM. Jan 2013, Washington D.C..
L. Zhao, J. Sun and H. M. Zhang. “Observations and Analysis of Multistep Approaching Lane Changing Behavior at Two Expressway Merge Bottlenecks in Shanghai.” The 90th Transportation Research Board Annual Meeting CD-ROM. Jan 2013, Washington D.C..
J.Sun, J. Zhang and H. M. Zhang. “Investigation of Early-Onset Breakdown Phenomenon at Urban Expressway Bottlenecks in Shanghai, China.” The 90th Transportation Research Board Annual Meeting CD-ROM. Jan 2013, Washington D.C..
J. Zhao, W. Ma, H. M. Zhang and X. Yang. “Two-Step Optimization Model for Dynamic Lane Assignment at Isolated Signalized Intersections.” The 90th Transportation Research Board Annual Meeting CD-ROM. Jan 2013, Washington D.C..
W. Yin, X. Yang, and H. M. Zhang. “Using Cooperative Vehicle Infrastructure System to Improve Bus Schedule Adherence: Predictive Control Strategy and Its Hardware-in-the-Loop Field Tests.” The 90th Transportation Research Board Annual Meeting CD-ROM. Jan 2013, Washington D.C..
S. Tang and H. M. Zhang.“Primal-Dual Heuristic for Path Flow Estimation in Medium-Sized to Large Networks.” The 90th Transportation Research Board Annual Meeting CD-ROM. Jan 2013, Washington D.C.

Technical Reports

H. Zhang and Ritchie, S. A Real-Time Decision-Support System for Freeway Management and Control, Final Report to University of California Transportation Center/US Department of Transportation. 1992.
H. Zhang. A Real-Time Decision-Support System for Freeway Management and Control, Master’s Thesis, Department of Civil Engineering, University of California, Irvine. 1992.
H. Zhang. New Modeling Framework for Real-time Optimal Freeway Control, Doctoral Thesis, Department of Civil Engineering, University of California, Irvine. 1995.
H. Zhang, Wu, T., Kwon, E., Sommers, K. and Habib, A. Arterial travel time estimation using loop detector data, Technical report to U.S. Department of Transportation and Minnesota Department of Transportation. 1996.
H.M. Zhang. Real-Time Optimal Control of Freeway Traffic. Final Report to Carver Foundation, 1998.
Lisa A. Schweitzer, David J. Forkenbrock, Michael Zhang, Micahel R. Crum Highway Performance and Time-Sensitive Industries. Report to Iowa Department of Transporation, Public Policy Center, University of Iowa, 1998
Michael Zhang, Taewan Kim, Xiaojian Nie, Wenlong Jin, Lianyu Chu, and Will Recker. Evaluation of Ramp Control Algorithms. California PATH Research Report UCB-ITS-PRR- 2001-36. 2001.
W. L. Jin and H. M. Zhang. Solving the Payne-Whitham traffic flow model as a hyperbolic system of conservation laws with relaxation. Technical Report UCD-ITS-Zhang-2001-1, 2001.
H. M. Zhang and X. J. Nie. Some consistency conditions for dynamic traffic assignment Problem. Technical Report UCD-ITS-Zhang-2002-1, 2002.
X. J. Nie and H. M. Zhang. The Delay-Function-Based Link Models: their properties and computational issues. Technical Report UCD-ITS-Zhang-2002-2, 2002.
Anthony Chen, Piya Chootinan, Will Recker, Michael Zhang. Development of a path flow estimator for inferring steady-state and time-dependent origin-destination trip matrices. Final Report to California Department of Transportation. September 2004
Roberto Horowitz, Adolf May, Alex Skakabardonis, Pravin Varaiya, Michael Zhang, Gabriel Gomes, Laura Munoz, Xiaotian Sun, Dengfen Sun. Design, field implementation and evaluation of adaptive ramp metering algorithms. California PATH Research Report. UCB-ITSPRR- 2005-2. 2005
Michael Zhang, Jingtao Ma. Overview of Calibrating Microscopic Traffic Simulation Application Models: Project Scoping, Data Collection and Calibration. Interim Project Report to California Department of Transportation. MAY 1, 2006
Michael Zhang, Jingtao Ma, Hu Dong. Developing Calibration Tools for Microscopic Traffic Simulation, Interim Project Report to California Department of Transportation. MAY 1, 2006
Michael Zhang, Yu Nie and Zhen Qian. The variational inequality approach for dynamic OD estimation for freeways. Project Report to California Department of Transportation. Jan. 2007
Michael Zhang and Jingtao Ma. Developing Calibration Tools for Microscopic Traffic Simulation, Part I: Overview Methods and Guidelines on Project Scoping and Data Collection. California PATH Research Report. UCB-ITS-PRR-2008-3. 2008.
Michael Zhang, Jingtao Ma and Hu Dong. Developing Calibration Tools for Microscopic Traffic Simulation, Part II: Calibration Framework and Calibration of Local/Global Driving Behavior and Departure/Route Choice Model Parameters. California PATH Research Report. UCB-ITS-PRR-2008-7. 2008.
Michael Zhang, Jingtao Ma, Shailendra P. Singh and Lianyu Chu. Developing Calibration Tools for Microscopic Traffic Simulation, Part III: Global Calibration- O-D Estimation, Traffic Signal Enhancement and a Case Study. California PATH Research Report. UCB-ITSPRR- 2008-8. 2008.
Michael Zhang, Wei Shen, Yu Nie, and Jingtao Ma. Integrated Construction Zone Traffic Management. California PATH Research Report. UCB-ITS-PRR-2008-9. 2008.
Michael Zhang, Yu Nie, Wei Shen, Ming S. Lee, Sarawut Jansuwan, Piya Chootina, Surachet Pravinvonguth, Anthony Chen, Will W Recker. Development of a path flow estimator for inferring steady-state and time-dependent origin-destination trip matrices. California PATH Research Report. UCB-ITS-PRR-2008-10. 2008.
H.M. Zhang, F. Xiao, and Y. Zeng. Evaluation of Road Diet Plan for Fifth Street Corridor Improvement. Final report to Sustainable Transportation Center, University of California Davis. 2010
H.M. Zhang, Z. Qian, Y.-R. Chen, R. Carpenter, and R. Lim. Evaluation of the I-5 Closure in Downtown Sacramento. Final Report to California Environmental Protection Agency, Dec. 2010
H.M. Zhang, S. Tang, S. Zian, A. Chen, S. Ryu, and W. Recker. Visual PFE Software Enhancements for Planning Applications in Small Sized Communities. Final Report to California Department of Transportation. Jan. 2011
H.M. Zhang and Z. Qian. Integrated Work Zone Traffic Management (Phase II). Final Report to California Department of Transportation. UCD-ITS-RP-11-06. June 2011
H.M. Zhang, S. Qian, and R. Lim. Evaluation of the Alternative Construction Plans for the I-5 Closure in Downtown Sacramento. Final Report to California Department of Transportation. UCD-ITSRP- 11-11. June 2011.

Conference Presentations

H. Zhang, Ritchie, S. G. and W. W. Recker. “On the Optimal Ramp Control Problem, When Does Ramp Metering Work?” The 74th Transportation Research Board Annual Meeting. Jan. 1995.
H. Zhang and S. G. Ritchie. “An Integrated Traffic-Responsive Ramp Metering Strategy via Nonlinear State Feedback.” The 74th Transportation Research Board Annual Meeting. Jan. 1995.
H.M. Zhang and T. Wu. “Numerical simulation and analysis of traffic flow.” The 76th Transportation Research Board Annual Meeting. Jan. 1997.
H.M. Zhang. “An optimization algorithm for freeway traffic control.” The INFORMS Conference, October 1997, Dallas.
H.M. Zhang. “Modeling hysteresis phenomena in traffic flow.” The INFORMS Conference, October 1997, Dallas.
H.M. Zhang and T. Wu. “A new formulation of system optimal assignment for traffic corridors.” The INFORMS Conference, October 1997, Dallas. 1997.
H.M. Zhang. “Analyses of the Stability and Wave Properties of a New Continuum Traffic Theory.” The 77th Transportation Research Board Annual Meeting. 1998.
H.M. Zhang. “Further Experimental Evidence of Traffic Hysteresis.” The INFORMS Conference, Seattle, 1998.
H.M. Zhang. “A Journey Speed Model for Arterial Traffic.” The 78th Transportation Research Board Annual Meeting, 1999.
H.M. Zhang and T.W. Kim. “Effects of Relaxation and Anticipation on Rieman Solutions of the PW Model.” The 79th Transportation Research Board Annual Meeting, January 2000.
H.M. Zhang. “Modeling Congested Traffic Flow with an ARMAX Structure.” The 6th AATT Conference in Singapore, July 2000.
H.M. Zhang and T. W. Kim. “New Car-Following Theory for Multi-Phase Traffic Flow.” The 79th Transportation Research Board Annual Meeting, Jan. 2001.
W. L. Jin and .H.M. Zhang. “Godunov Methods for the PW Vehicular Traffic Flow Model.” SIAM Mini Symposium on Traffic Flow, San Diego, July 2001.
H.M. Zhang and W. L. Jin. “A Kinematic Wave Traffic Flow Model for Mixed Traffic.” The 80th Transportation Research Board Annual Meeting, Washington D. C. Jan. 2002.
Taewan Kim and H. M. Zhang. “Gap Time and Stochastic Wave Propagation.” The 2004 IEEE Intelligent Transportation Systems Conference, Washington, D.C., USA, October 3-6, 2004.
Taewan Kim and H. M. Zhang. “An empirical study on gap time and its relation to the fundamental diagram of traffic flow.” The 2004 IEEE Intelligent Transportation Systems Conference, Washington, D.C., USA, October 3-6, 2004. Paper No MoC4.4
H. C. Chang, H. Du, J. Anda, C-N. Chuah, D. Ghosal, and H. M. Zhang. “Enabling Energy Demand Response with Vehicular Mesh Networks”, IFIP/IEEE Intl Conference on Mobile and Wireless Communication Networks (MWCN), October 2004.
J. LeBrun, C-N. Chuah, D. Ghosal, and H. M. Zhang. “Knowledge-Based Opportunistic Forwarding in Vehicular Wireless Ad Hoc Networks,” IEEE Vehicular Technology Conference, Spring 2005.
J. Anda, J. LeBrun, D. Ghosal, C-N. Chuah, and H. M. Zhang. “VGrid: Vehicular Ad Hoc Networking and Computing Grid for Intelligent Traffic Control,” IEEE Vehicular Technology Conference, Spring 2005.
Wei Shen, Yu Nie, and H. Michael Zhang. “Path-based System Optimal Dynamic Traffic Assignment Models: Formulations and Solution Method.” The 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, 2006. Paper No. WA2.4
Will Recker, Michael Zhang, Lianyu Chu, Anthony Chen and Michael McNally. “Development of methods and tools for managing traffic congestion in freeway corridors.” The 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, 2006. Paper MA1.5
Andrew Chen, Behrooz Khorashadi, Chen-Nee Chuah, Dipak Ghosal, and Michael Zhang. “Smoothing Vehicular Traffic Flow using Vehicular-based Ad Hoc Networking & Computing Grid (VGrid).” The 2006 IEEE Intelligent Transportation Systems Conference, Toronto, Canada, September 17-20, 2006. Paper MB6.1
H. M. Zhang and H. DU. “A three-regime car-following model and its wave properties.” The 2006 International Transport Simulation Symposium. September, 2006. Lausanne, Switzerland. Paper P019
B. Khorashadi, A. Chen, D. Ghosal, C-N. Chuah, and M. Zhang. “Impact of Transmission Power on the Performance of UDP in Vehicular Ad Hoc Networks.” The IEEE Proc. International Conference on Communications (ICC), June 2007.
J. T. Ma, Y. Nie and H. M. Zhang. “Calibration of Microsimulation with Heuristic Optimization Methods.” The 86th Transportation Research Board Annual Meeting. 2007.
Wei Shen, Y. Nie and H. M. Zhang. “A Dynamic Network Simplex Method For Designing Emergency Evacuation Plans.” The 86th Transportation Research Board Annual Meeting. 2007.
Wei Shen, Y. Nie and H. M. Zhang. “On Path Marginal Cost Analysis and its Relationship to Dynamic System-optimal Traffic Assignment.” The 17th International Symposium on Transportation and Traffic Theory. London. July, 2007.
Zhen Qian and H. M. Zhang. “Modeling Multimodal Morning Commute in a One-to-One Corridor Network.” The 18th International Symposium on Transportation and Traffic Theory (ISTTT). July 2009, Hong Kong.
B. Khorashadi, Andrew Chen, Chen-Nee Chuah, Dipak Ghosal, Michael Zhang. “Impact of Transmission Power on the Performance of TCP in Vehicular Ad Hoc Networks.” WONS 2007
C-N. Chuah, H. Du, D. Ghosal, B. Khorashadi, B. Liu, C. Smith, and H. M. Zhang. “Distributed Vehicular Traffic Control and Safety Applications with VGrid.” IEEE Wireless Hive Networks Conference, Austin, TX, August, 2008. 37.
H. Du, M. Zhang, C-N. Chuah, and D. Ghosal “A Finer Resolution Cellular Automata Model for Inter-Vehicle Communication Applications.” The 87th Transportation Research Board 2008 Annual Meeting, pp 13, January 2008.
H. M. Zhang, C-N. Chuah, and D. Ghosal , Fred Bojin Liu. “Evaluating the Memory Effect of Vehicular Ad Hoc Wireless Mesh Networks.” NSF Engineering Research and Innovation Conference, Honolulu, Hawaii. June 2009.
Zhen Qian and H. M. Zhang. “On Centroid Connectors in Static Traffic Assignment: Their Effects on Flow Patterns and Optimization of Their Selection.” The 89th Transportation Research Board Annual Meeting. Jan 10-14,2010, Washington D.C..
Zhen Qian, Wei Shen and H. M. Zhang. “ Solving Path-Based System-Optimal Dynamic Traffic Assignment Considering Queue Spillback.” The 89th Transportation Research Board Annual Meeting. Jan 10-14,2010, Washington D.C..
Behrooz Khorashadi, Bojin Liu, Haining Du, Dipak Ghsoal, Chen-Nee Chuah and H. M. Zhang. “Smoothing Vehicular Traffic Flow with VGrid.” The 89th Transportation Research Board Annual Meeting. Jan 10-14,2010, Washington D.C.

Invited Presentations

The Mathematical Properties of a Nonequilibrium Traffic Theory and Their Physical Implications. Institute of Transportation Studies Transportation, University of California, Berkeley, 1998.
Some new developments in traffic flow theory. Civil and Environmental Engineering, University of Texas at Austin, Feb. 2000.
A new look at two mathematical models of traffic flow. Department of Civil Engineering, The University of Hong Kong; Institute of Transport Studies, The Hong Kong University of Science and Technology and Hong Kong Society for Transportation Studies. September 2002
An Overview of Traffic Systems Research at UC Davis. Ford Research Laboratory, Detroit, Michigan. November 2002.
Traffic off equilibrium: mathematical models and physical implications. The Mathematics Section of the American Association for the Advancement of Science (AAAS), 2003 AAAS meeting, Denver, Colorado. February 13-18, 2003.
Progress in ATMIS research in the California PATH Program. Tongji University, Shanghai, China. August 2003.
Some Recent Advances in Modeling Capacity Drop, Traffic Hysteresis, and Vehicle Clusters. Workshop on Traffic Modeling and Simulation, June 2003, Barcelona, Spain
Traffic Flow Models. Invited lecture, Applied Mathematics Workshop for Graduate Students, Xi’an Jiaotong University. Xi’an, China. June 29, 2004.
Fundamental diagram, relaxation, and traffic instability. Workshop on Traffic Flow Modeling. University College London. London, UK. September 11, 2006.
Development of methods and tools for efficient corridor traffic management. The PATH at Twenty Conference, Berkeley, California. October 26, 2006.
Dynamic System Optimal Traffic Assignment Models: Formulations and Solution Methods. Institute of Transportation Studies, UC Berkeley. October 2006.
Modeling vehicular traffic flow as conservation laws, Transportation Center, Northwestern University. May 3, 2007
Managing Construction Work Zone Traffic with NetZone. Caltrans Research Connection. April 26, 2007.
NetZone, an integrated work zone traffic analysis tool, Joint UCTC-PATH Conference: Tackling Congestion in an Era of Climate Change. November 6-7, 2008 Biltmore Hotel, Los Angeles, CA.
What happens when a major freeway is under repair? The case of Fix-I5. California Environmental Protection Agency, Sacramento, CA. Dec 2009.
Managing Work Zones with NetZone: an application to I-5 closure and more. the Caltrans Office Chiefs Monthly Meeting, Division of Traffic Operations. Nov 9, 2009.
Reflections on the fundamental diagram of traffic flow. Mathematics in Transport Conference, University College London. London, UK. April 12-15, 2010.
Rethinking the fundamental diagram. Department of Civil Engineering, University of Illinois, Urbana-Champaign. April 22, 2010.
Where to queue: does it matter in dynamic traffic assignment? NSF Dynamic Route Guidance and Coordinated Control Workshop, Rutgers University, NJ. June 7-8, 2010.
Throw It All At Congestion: a comparative study of several policy instruments in managing traffic congestion in the morning commute. Institute of Transportation Studies, UC Berkeley. Nov 12, 2010.
Recent Advances in Modeling Traffic Flow. College of Transportation Engineering, Southwest Jiaotong University, Chengdu, China. Nov. 2011. School of Transportation Engineering, Chang’an University, Xi’an, China. Nov 2011.
VGrid: A Vehicular Wireless Mesh Network Enabled Computing Grid for Efficient Transportation Management. Tongji University, Shanghai, China. Sept 2010. Beijing University of Technology, Nov 2011. Beihang University, Beijing, China, Nov 2011. COTA (Chinese Overseas Transportation Association) TRB Special Session, Washington DC, Jan 2012.
Traffic Flow Theory and Network Extensions: Is Traffic Flow Complex?. NSF Workshop on Complexity Science Applied to Coupled Infrastructure Systems (InfraPlex), Marthas Vineyard, MA. June 3-4, 2012.
Traffic Flow Theory and Network Extensions for Dynamic Traffic Assignment. 12th COTA International Conference of Transportation Professionals. Beijing, China. Aug 2012
A fresh look at the fundamental diagram of traffic flow. Workshop on Traffic Modeling and Management: Trends and Perspectives at INRIA Sophia Antipolis Mditerrane. March 2013.