ASSOCIATE RESEARCH ENGINEER
Alex Kurzhanskiy is an Associate Research Engineer at California PATH, which he joined as a Postdoctoral Researcher in 2008. By 2011, he had become an integral part of PATH’s research staff. His credentials include an M.S in Applied Mathematics & Computer Science from Lomonosov Moscow University and a Ph.D. in Electrical Engineering & Computer Science at the University of California, Berkeley.
His research interests and expertise include transportation management systems, vehicle automation, connected vehicles and infrastructure, multi-modal modeling and simulation, multi-dimensional geospatial and timeseries data analysis, econometrics, distributed algorithms and cloud computing.
Recently, he led the team that created Operations Planning Toolbox (OPT) – a multi-modal mesoscopic traffic simulator for analysis of freeway corridor operations. OPT is simple to learn and use, and it serves as a replacement for the legacy simulation software FREQ12, also developed by UC Berkeley many years ago.
Presently, Alex runs several research projects on public bus transit. They deal with operational safety, and with the ridership and performance. For example, one of these projects involved monitoring and analysis of bus transit operations under COVID: impact of transit agencies’ COVID response, influencing factors of the ridership recovery, ridership demographics in the context of certain economic indicators. Another project aims at developing user-centric informational trip assistant for riders with disabilities.
Before, Alex conducted projects on managed lanes that developed modeling methodologies and simulation software for High Occupancy or Tolled (HOT) lanes, including estimation and modeling of HOT violations and assessing their impact on freeway operation.
He has also done a lot of work on urban traffic optimization, co-leading Caltrans project “Safe Operation of Automated Vehicles at Intersections” and a project from the National Science Foundation (NSF) called “Traffic Operating System for Smart Cities”, which explored coordination of vehicle-level, street-level and network-level control. The NSF project had transfer-to-practice component with connected vehicles forming platoons at intersections – see the video of the platooning experiment in Arcadia, CA.
Alex co-led numerous projects on intelligent intersections aimed at making the passage of automated cars through intersections safe and efficient. This is achieved by intelligent infrastructure (sensing + object identification + I2V) augmenting connected vehicles’ onboard sensing with data from the roadside detection.
RESEARCH INTERESTS AND EXPERTISE
- Transportation: Traffic Engineering, Traffic Modeling & Simulation, Traffic Signal Control, GIS, Traffic Data Collection & Processing
- Dynamical Systems: Automatic Control Theory and Applications, Stochastic Processes
- Partial Differential Equations: Numerical Methods, Inverse Problems
- Cyber-Physical Systems: Dynamic Modeling & Simulation, Identification, State Estimation & Control
- Data Science: Time Series Analysis, Cluster Analysis, Convex Optimization, Compressed Sensing
- Information Technology: Distributed Computation, Parallelization, MapReduce, CUDA and GPU computing
On Node Models for High-Dimensional Road Networks
M. Wright, G. Gomes, R. Horowitz, A.A. Kurzhanskiy. Transportation Research, Part B. 105C, pp. 212-234. Online: http://arxiv.org/abs/1601.01054. 2017
Traffic Management: An Outlook
A.A. Kurzhanskiy and P. Varaiya. Economics of Transportation Special Issue: Transportation Science. 4(3), pp. 135-146. 2015
Modeling Toll Lanes and Dynamic Pricing Control
E. Dorogush and A.A. Kurzhanskiy. International Journal of Computer and System Sciences, 54(3), pp. 440-457. Online: http://arxiv.org/abs/1505.00506. 2014
Guaranteed Prediction and Estimation of the State of a Road Network
A.A. Kurzhanskiy and P. Varaiya. Transportation Research, Part C, 21(1), pp. 163-180. 2012
Reach Set Computation and Control Synthesis for Discrete-Time Dynamical Systems with Disturbances
A.A. Kurzhanskiy and P. Varaiya. Automatica, 47(7), pp. 1414-1426. 2011
Theory and Computational Techniques for Analysis of Discrete-Time Control Systems with Disturbances
A.A. Kurzhanskiy and P. Varaiya. Optimization Methods & Software, 26(4-5), pp. 719-746. 2011
Active Traffic Management on Road Networks: A Macroscopic Approach
A.A. Kurzhanskiy and P. Varaiya. Philosophical Transactions of Royal Society A, 368, pp. 4607-4626. 2010
Behavior of the Cell Transmission Model and Effectiveness of Ramp Metering
G. Gomes, R. Horowitz, A.A. Kurzhanskiy, P. Varaiya, and J. Kwon. Transportation Research C, 16(4), pp. 485-513. 2008
Ellipsoidal Techniques for Reachability Analysis of Discrete-Time Linear Systems
A.A. Kurzhanskiy and P. Varaiya. IEEE Transactions on Automatic Control, 52(1), pp. 26-38. 2007
Control Experiments for A Network of Signalized Intersections Using the ‘.Q’ Simulator
J.Lioris, A.A. Kurzhanskiy, D. Triantafyllos and P. Varaiya. Presented at the IEEE International Workshop on Discrete Event Systems, Ecole Normale Superieure de Cachan, France. 2014
Using Aurora Road Network Modeler for Active Traffic Management
A.A. Kurzhanskiy and P. Varaiya. American Control Conference, Baltimore. Invited paper. 2010
Aurora RNM – A Macroscopic Simulation Tool for Arterial Traffic Modeling and Control
A.H.F. Chow, G. Gomes, A.A. Kurzhanskiy, and P. Varaiya. 89th Annual TRB Meeting. 2010
Set-Valued Estimation of Freeway Traffic Density
A.A. Kurzhanskiy. 12th IFAC Symposium on Control in Transportation Systems, Redondo Beach. 2009
Aurora Road Network Modeler
A.A. Kurzhanskiy, J. Kwon, and P. Varaiya. 12th IFAC Symposium on Control in Transportation Systems. 2009
Aurora Arterial Modeler- A Macroscopic Tool for Urban Traffic Control
A.H.F. Chow, G. Gomes, A.A. Kurzhanskiy, and P. Varaiya. 12th IFAC Symposium on Control in Transportation Systems. 2009
Congestion in ACTM Model
G. Gomes, R. Horowitz, A.A. Kurzhanskiy, P. Varaiya, and J. Kwon. European Control Conference, Koss, Greece. 2007
Ellipsoidal Toolbox (ET)
A.A. Kurzhanskiy and P. Varaiya. 45th IEEE Conference on Decision and Control, San Diego. 2006
R.K. Shyamasundar and M.A. Pai, Editors. Oxford University Press.
Computation of Reach Sets for Dynamical Systems
A.A. Kurzhanskiy and P. Varaiya. Chapter 29 of Control Handbook, 2nd Edition.
W.S. Levine, Editor. Taylor & Francis Group, LLC.
Technical Reports and Working Papers
Online Traffic Simulation Service for Highway Incident Management
A.A. Kurzhanskiy. Final report: SHRP 2 Reliability IDEA Project L15C. Online: http://www.trb.org/main/blurbs/168802.aspx 2013
Strategic Placement of Loop Detectors for Improving the Efficiency of Ramp Metering
K. Chung, G. Gomes, S.H. Park, A.A. Kurzhanskiy, and S.-Y. Kho. Working paper. 2010
Macroscopic Modeling of Multiple Vehicle Types and Freeways with HOV Lanes
A.A. Kurzhanskiy and A. Muralidharan. Working paper. Online: : http://ucb-trans.org/topl/papers/2009_KurzhanskiyMuralidharan__ModelingHOV.pdf2009
Aurora – Object-Oriented Framework for Simulation and Analysis of Flow Networks
A.A. Kurzhanskiy, J. Kwon, and P. Varaiya. Working paper. Online: : http://ucb-trans.org/topl/papers/2008_AuroraFramework.pdf 2008
CTMSIM – An Interactive Macroscopic Traffic Simulator for MATLAB
A.A. Kurzhanskiy and P. Varaiya. Working paper. Online: http://ucb-trans.org/topl/papers/2008_KurzhanskiyVaraiya__CTMSIM.pdf
A.A. Kurzhanskiy and P. Varaiya. Technical Report 2006-46, EECS, UC Berkeley. 2006