XINKAI WU Ph.D. in Civil Engineering
xinkaiwu@cpp.edu

Research Publications

Papers in Refereed Journals

1. Wu, X., He, X., Yu. G., Harmandayan, Yu, Wang, Y. (2015). Energy Optimal Speed Control for Plug-in Electric Vehicles on Signalized Arterials, IEEE Transaction on ITS, DOI: 10.1109/TITS.2015.2422778.
2. Wu, X., Freese, D., Cabrera, A., Kitch, A. W. (2015). Electric Vehicles’ Energy Consumption Measurement and Estimation, Transportation Research–Part D, 34(2015), 52-67.
3. Sun, W., Wu, X., Yu, G. (2015) A Continuous-Flow-Intersection-Lite (CFI-Lite) Design and Traffic Control for Oversaturated Bottleneck Intersections, Transportation Research-Part C 56 (2015) 18–33.
4. Lu, G., Wang, Y., Wu, X., Liu, X. (2015), Analysis of Yellow-Light Running at Signalized Intersections Using High-Resolution Traffic Data, Transportation Research Part A, 73(2015), 39-52.
5. Wu, X., Liu, H. (2014). Using High-Resolution Event-based Detector Data for Traffic Modeling and Control: An Overview, submitted to Transportation Research-Part C, 42(2014), pp. 28-43.
6. Hu, H., Wu, X., Liu, H. (2013). Managing oversaturated signalized arterials: A maximum flow based approach, Transportation Research-Part C. 36(2013), pp. 196-211.
7. Wu, X., Vall, N.D. (2013). Analysis of Drivers’ Stop-or-Run Behavior at Signalized Intersections Using High-Resolution Traffic and Signal Event Data, Transportation Research Record. No.2365, pp. 99-108
8. Wu, X., Liu, H. (2013). Investigating the Uncertainty of Drivers’ Gap Selection and Its Impact on the Fundamental Diagram, presented at the 20th International Symposium on Transportation and Traffic Theory (ISTTT 20), Procedia - Social and Behavioral Sciences 80(7), pp. 901 – 921.
9. Wu, X., Liu, H. (2011). A Shockwave Profile Model for Traffic Flow on Congested Urban Arterials. Transportation Research-Part B. 45(10), pp. 1768-1786.
10. Wu, X., Liu, H., Geroliminis, N. (2011). An Empirical Analysis on the Arterial Fundamental Diagram. Transportation Research-Part B. 45(1), pp. 255-266.
11. Wu, X., Michalopoulos, P., Liu, H. (2010). Real-time Stochasticity of Freeway Capacity and Chance-Constrained Ramp Metering. Transportation Research-Part C. 18(5), pp. 741-756.
12. Wu, X., Liu, H., Getttman, D. (2010). Identification of Oversaturated Intersections Using High-Resolution Traffic Signal Data. Transportation Research-Part C. 18(4), pp. 626-638.
13. Liu, H., Wu, X., Ma, W., Hu, H. (2009). Real-Time Queue Length Estimation for Congested Signalized Intersections. Transportation Research-Part C. 17(4), pp. 412-427.
14. Liu, H., Ma, W., Wu, X., Hu, H. (2010). Real-Time Estimation of Arterial Travel Time under Congested Conditions. Transportmetrica, 1(18), 1944-0987.
15. Wu, X., Levinson, D., Liu, H. (2009). Evaluating Perception of Waiting Time at Signalized Intersections. Transportation Research Record, No. 2135, pp. 52-59.
16. Liu, H., Wu, X., Michalopoulos, P. (2007). Improving Queue Size Estimation for Minnesota’s Stratified Zone Metering Strategy. Transportation Research Record, No. 2012, pp. 38-46.

Conference Presentations

1. Li, Y., Yu, G., Sun, W., Wu, X. (2016) Performance Evaluation of CFI-Lite: A New Continuous Flow Intersection Design, Accepted for presentation at the 95th TRB Annual Meeting, Washington, D.C.
2. Chia, I., Wu, X., Thai, J. (2016) Evaluation of Actuated, Coordinated, and Adaptive Signal Control Systems: A Case Study, Accepted for presentation at the 95th TRB Annual Meeting, Washington, D.C.
3. Wu, X., Valera, P., Morton, J. (2016) An Aggregate Energy Consumption Model for Electrical Vehicles at Signalized Intersections, Accepted for presentation at the 95th TRB Annual Meeting, Washington, D.C.
4. Xu, Y., Yu, G., Wu, X. (2015) A Vehicle Detection and Tracking System Using Small Unmanned Aerial Vehicles, Accepted for presentation at the 95th TRB Annual Meeting, Washington, D.C.
5. Wu, X., Tong, T. (2015) Modeling Traffic Flow Dynamics on Urban Arterials with Actuated Signal Control using Enhanced Shockwave Profile Model, Accepted for presentation at the 94th TRB Annual Meeting, Washington, D.C.
6. Wu, X., He, X. (2015) Energy Optimal Speed Control for Plug-in Electric Vehicles on Signalized Arterials, Accepted for presentation at the 94th TRB Annual Meeting, Washington, D.C.
7. Sun, W., Wu, X., Yu, G. (2015). A Continuous-Flow-Intersection-Lite (CFI-Lite) Design and Traffic Control for Oversaturated Bottleneck Intersections, Accepted for presentation at the 94th TRB Annual Meeting, Washington, D.C.
8. Wu, X., Vall, N.D. (2014, Jan.) Intersection Safety Evaluation Using High-Resolution Traffic Signal Data, Poster presentation at the 93rd TRB Annual Meeting, Washington, D.C.
9. Wu, X., Juarez, D. (2014, Jan.), Optimal Signal Timing Models for the FHWA and Mexico 4-legged Continuous Flow Intersections, Poster Presentation at the 93rd TRB Annual Meeting, Washington, D.C.
10. Lu, G., Wang, Y., Wu, X., Liu, X. (2014, Jan.), Analysis of Yellow-Light Running at Signalized Intersections Using High-Resolution Traffic Data, Poster Presentation at the 93rd TRB Annual Meeting, Washington, D.C.
11. Wu, X., Liu, H. (2013, Jun.). Investigating the Uncertainty of Drivers’ Gap Selection and Its Impact on the Fundamental Diagram, presented at the 20th International Symposium on Transportation and Traffic Theory (ISTTT 20)
12. Wu, X., Vall, N.D. (2013, Jan.). Analysis of Drivers’ Stop-or-Run Behavior at Signalized Intersections Using High-Resolution Traffic and Signal Event Data, Accepted for presentation at the 92nd Transportation Research Board (TRB) Annual Meeting, Washington, D.C.
13. Wu, X., Liu, H. (2013, Jan.). Using High-Resolution Event-based Detector Data for Traffic Modeling and Control: An Overview, Poster session presentation at the 92nd TRB Annual Meeting, Washington, D.C.
14. Wu, X., Liu, H. (2012, Jan.). Investigating the Uncertainty of Drivers’ Gap Selection and Its Impact on the Fundamental Diagram, Poster session presentation at the 91st TRB Annual Meeting, Washington, D.C.
15. Hu, H., Wu, X., Liu, H. (2012, Jan). A Simple Forward-Backward Procedure for Real-Time Signal Timing Adjustment on Oversaturated Arterial Networks, Poster session presentation at the 91st TRB Annual Meeting, Washington, D.C.
16. Wu, X., Liu, H., Getttman, D. (2010, Jan.). Identification of Oversaturated Intersections Using High-Resolution Traffic Signal Data. Oral presentation at the 89th TRB Annual Meeting, Washington, D.C.
17. Wu, X., Liu, H. (2010, Jan.). A Shockwave-based Traffic Flow Model for Oversaturated Arterial Arterials. Poster session presented at the 89th TRB Annual Meeting, Washington, D.C.
18. Wu, X., Liu, H. (2009, Oct.). A Simplified Traffic Flow Model for Congested Signalized Arterials. Oral presentation at the INFORMS Annual Meeting, San Diego, CA.
19. Liu, H., Ma, W., Wu, X., Hu, H. (2009, Jul.). Real-Time Estimation of Arterial Travel Time under Congested Conditions. Poster session presented at the 18th ISTTT 18, Hongkong, China.
20. Liu, H., Wu, X., Ma, W., Hu, H. (2009, Jan.). Time-Dependent Queue Length Estimation for Arterial Links under Congestion. Oral presentation at the 88th TRB Annual Meeting, Washington, D.C.
21. Wu, X., Levinson, D., Liu, H. (2009, Jan.). Evaluating Perception of Waiting Time at Signalized Intersections. Poster session presented at the 88th TRB Annual Meeting, Washington, D.C.
22. Wu, X., Liu, H., Geroliminis, N. (2008, Jul.). Fundamental Diagram for Signalized Arterials: An Empirical Analysis using High-Resolution Traffic Data. Oral presentation at the Summer Meeting of the TRB Traffic Flow Theory Committee, Woods Hole, MA.
23. Liu, H., Ma, W., Hu, H., Wu, X., Yu, G. (2008, Oct.). SMART-SIGNAL: Systematic Monitoring of Arterial Road Traffic Signals. Oral presentation at the 11th International IEEE Conference on Intelligent Transportation System (ITSC), Beijing, China.
24. Liu, H., Wu, X., Michalopoulos, P. (2008, May). Real-time Stochasticity of Freeway Capacity and Chance-Constrained Ramp Metering. Oral presentation at the10th International Conference on Applications of Advanced Technologies in Transportation (AATT), Athens, Greece.
25. Liu, H., Wu, X., Michalopoulos, P. (2008, Jan.). Real-Time Freeway Capacity Estimation and Implementation to Ramp Control. Poster session presented at the 87th TRB Conference, Washington, D.C.

Technical Reports

1. Gettman, D., Abbas, M., Liu, X., Skabardonis, A., …, Wu, X., … (2014) Operation of Traffic Signal Systems in Oversaturated Conditions, final report, NCHRP, TRB, Washington, D.C.
2. Liu, H. & Wu, X. (2012) Estimating and Measuring Arterial Travel Time and Delay (Rep. CTS. 12-20). Intelligent Transportation Systems Institute (RITA), University of Minnesota, Minneapolis, MN
3. Liu, H., Ma, W., Wu, X., & Hu, H., (2009). Development of a Real-Time Arterial Performance Monitoring System Using Traffic Data Available from Existing Signal Systems (Rep. No. 2009-01). St. Paul, MN: Mn/DOT
4. Liu, H., Wu, X., Michalopoulos, P., & Hourdos, J. (2007). Employment of the Traffic Management Lab for the Evaluation and Improvement of Stratified Metering Algorithm - Phase IV (Rep. No. 2007-51). St. Paul, MN: Mn/DOT
5. Liu, H., Wu, X., Michalopoulos, P., & Hourdos, J. (2007). Employment of the Traffic Management Lab for the Evaluation and Improvement of Stratified Metering Algorithm - Phase III (Rep. No. 2007-1). St. Paul, MN: Mn/DOT

U.S. Patent

1. Liu, H., Ma, W., Wu, X., Traffic Flow Monitoring for Intersections with Signal Control, Patent No.8279086; Issue Date: 10/02/2012.

Wikibooks

• Wu, X., Transportation Systems Simulation - A Tutorial for Multi-Modal Simulation Using VISSIM
• Wu, X., Liu, H., Urban Traffic Operations