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A novel agent-based transportation model of a university campus with application to quantifying the environmental cost of parking search
Transportation Research Part A: Policy and Practice
See publicationThis paper develops a novel agent-based transportation model of a university campus,
primarily focusing on vehicle-related travel and the associated parking search process. In
developing and validating the model, the study uses a wide range of data sources
including:(1) a brief “trip-diary” type survey;(2) 24-h traffic counts at the entry and exit points
to the campus;(3) information about the university buildings' class room capacities and class
schedules;(4) parking…This paper develops a novel agent-based transportation model of a university campus,
primarily focusing on vehicle-related travel and the associated parking search process. In
developing and validating the model, the study uses a wide range of data sources
including:(1) a brief “trip-diary” type survey;(2) 24-h traffic counts at the entry and exit points
to the campus;(3) information about the university buildings' class room capacities and class
schedules;(4) parking occupancy surveys; and (5) select intersections' turn movement ... -
An integrated traffic-driving simulation framework: Design, implementation, and validation
Transportation Research Part C: Emerging Technologies
See publicationAbstract This paper first describes the process of integrating two distinct transportation
simulation platforms, Traffic Simulation models and Driving Simulators, so as to broaden the
range of applications for which either type of simulator is applicable. To integrate the two
distinct simulation platforms, several technical challenges needed to be overcome including
reconciling differences in update frequency, coordinate systems, and the fidelity levels of the
vehicle…Abstract This paper first describes the process of integrating two distinct transportation
simulation platforms, Traffic Simulation models and Driving Simulators, so as to broaden the
range of applications for which either type of simulator is applicable. To integrate the two
distinct simulation platforms, several technical challenges needed to be overcome including
reconciling differences in update frequency, coordinate systems, and the fidelity levels of the
vehicle dynamics models and graphical rendering requirements of the two simulators. ... -
On-line prediction of border crossing traffic using an enhanced Spinning Network method
Transportation Research Part C: Emerging Technologies
See publicationAbstract This paper improves on the Spinning Network (SPN) method, a novel forecasting
technique, inspired by human memory which was recently developed by Huang and Sadek
(2009). The improvement centers on the use of the Dynamic Time Warping (DTW) algorithm
to assess the similarity between two given time series, instead of using the Euclidean
Distance as was the case with the original SPN. Following this, the enhanced method (ie,
hereafter referred to as the DTW–SPN) is used…Abstract This paper improves on the Spinning Network (SPN) method, a novel forecasting
technique, inspired by human memory which was recently developed by Huang and Sadek
(2009). The improvement centers on the use of the Dynamic Time Warping (DTW) algorithm
to assess the similarity between two given time series, instead of using the Euclidean
Distance as was the case with the original SPN. Following this, the enhanced method (ie,
hereafter referred to as the DTW–SPN) is used to predict hourly traffic volumes at the ...
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An evaluation of environmental benefits of time-dependent green routing in the greater Buffalo–Niagara region
Journal of Intelligent Transportation Systems
See publicationThis article conducts a realistic assessment, using a real-world case study, of the likely
environmental benefits of an intelligent transportation systems (ITS) strategy that provides
dynamic route guidance to travelers based on the lowest emission or fuel consumption
routes. Several features distinguish this study from previous reported research. First, the
research utilizes a realistic case study of a medium-sized metropolitan area in the United
States. Second, the…This article conducts a realistic assessment, using a real-world case study, of the likely
environmental benefits of an intelligent transportation systems (ITS) strategy that provides
dynamic route guidance to travelers based on the lowest emission or fuel consumption
routes. Several features distinguish this study from previous reported research. First, the
research utilizes a realistic case study of a medium-sized metropolitan area in the United
States. Second, the research applies the latest state-of-the-art models on both the ... -
Modeling parking behavior under uncertainty: a static game theoretic versus a sequential neo-additive capacity modeling approach
Networks and Spatial Economics
See publicationAbstract This paper proposes two types of parking choice models, a static game theoretic
model and a dynamic neo-additive capacity model, to capture the competition among drivers
for limited desirable parking spaces. The static game assumes that drives make decisions
simultaneously and with perfect knowledge about the characteristics of the parking system
and the strategies of their fellow drivers in the system; the model thus captures only the
rational aspect of parking…Abstract This paper proposes two types of parking choice models, a static game theoretic
model and a dynamic neo-additive capacity model, to capture the competition among drivers
for limited desirable parking spaces. The static game assumes that drives make decisions
simultaneously and with perfect knowledge about the characteristics of the parking system
and the strategies of their fellow drivers in the system; the model thus captures only the
rational aspect of parking choice behavior and pays no attention to modeling individual ... -
A Computational‐Based Approach to Estimating Travel Demand in Large‐Scale Microscopic Traffic Simulation Models
Journal of Computing in Civil Engineering
See publicationThe increased interest in the development and application of large-scale or
regional microsimulation transportation models has brought to the forefront the challenges
associated with estimating the dynamic demand information needed to run such models.
This paper develops a computational-based approach for estimating or adjusting dynamic
origin–destination matrices for regional microsimulation models on the basis of hourly traffic
counts. The proposed approach, while based on…The increased interest in the development and application of large-scale or
regional microsimulation transportation models has brought to the forefront the challenges
associated with estimating the dynamic demand information needed to run such models.
This paper develops a computational-based approach for estimating or adjusting dynamic
origin–destination matrices for regional microsimulation models on the basis of hourly traffic
counts. The proposed approach, while based on genetic algorithms (GA), includes a ... -
Artificial Intelligence and Microscopic Traffic Simulation Models: Applications to Parameter Calibration and Origin–Destination Estimation
Transportation Research E-Circular
See publicationAbstract: In recent years, the use of microscopic traffic simulation (microsimulation hereafter)
has become increasingly popular in transportation modeling. After creating a crude
microsimulation model, an indispensible task is to tune up the model so it can accurately
represent the real data. This task can be divided into two sub-tasks, namely parameter
calibration, ie, to adjust the parameter values of the model, and origin–destination estimation
(ODE), ie, to adjust the…Abstract: In recent years, the use of microscopic traffic simulation (microsimulation hereafter)
has become increasingly popular in transportation modeling. After creating a crude
microsimulation model, an indispensible task is to tune up the model so it can accurately
represent the real data. This task can be divided into two sub-tasks, namely parameter
calibration, ie, to adjust the parameter values of the model, and origin–destination estimation
(ODE), ie, to adjust the origin–destination (OD) matrices representing the travel demand ... -
Assessing the mobility and environmental benefits of reservation-based intelligent intersections using an integrated simulator
IEEE Transaction on Intelligent Transportation Systems
See publicationThe connected vehicle research program is a mul-timodal research initiative in the
US that envisions a fully connected transportation system with wireless communications
linking vehicles, the infrastructure, and handheld smart devices. This paper designs and
evaluates a reservation-based approach to intersection control that is designed to take full
advantage of the unprecedented connectivity that the connected vehicle initiative promises
to provide. The control approach…The connected vehicle research program is a mul-timodal research initiative in the
US that envisions a fully connected transportation system with wireless communications
linking vehicles, the infrastructure, and handheld smart devices. This paper designs and
evaluates a reservation-based approach to intersection control that is designed to take full
advantage of the unprecedented connectivity that the connected vehicle initiative promises
to provide. The control approach, which is referred to herein as the “intelligent intersection ... -
Dynamic demand estimation and microscopic traffic simulation of a university campus transportation network
Transportation Planning and Technology
See publicationThis article documents the authors' experience with the modeling, simulation, and
analysis of a university transportation system, using the TRansportation ANalysis and
SIMulation System (TRANSIMS). The processes of data preparation and network coding are
described, followed by the algorithm developed to estimate the dynamic 24-hour demand,
which includes a procedure for estimating the 'desirability'of the different parking lots from
readily available data. The dynamic demand…This article documents the authors' experience with the modeling, simulation, and
analysis of a university transportation system, using the TRansportation ANalysis and
SIMulation System (TRANSIMS). The processes of data preparation and network coding are
described, followed by the algorithm developed to estimate the dynamic 24-hour demand,
which includes a procedure for estimating the 'desirability'of the different parking lots from
readily available data. The dynamic demand estimation algorithm is validated by ... -
Next-generation transportation simulation and modeling tools
State University of New York at Buffalo
See publicationThe purpose of this doctoral study is to advance the state of the art of the simulation
and modeling of transportation systems by addressing some of the limitations of state-of-the-
practice models such as the inability to deal with large amounts of data in real-time, the
aggregate nature of the majority of models, the lack of network realism in driving simulation
and human behavior realism in traffic simulation, and finally the inability to evaluate new and
emerging…The purpose of this doctoral study is to advance the state of the art of the simulation
and modeling of transportation systems by addressing some of the limitations of state-of-the-
practice models such as the inability to deal with large amounts of data in real-time, the
aggregate nature of the majority of models, the lack of network realism in driving simulation
and human behavior realism in traffic simulation, and finally the inability to evaluate new and
emerging Intelligent Transportation Systems (ITS) applications. Within this broader ...
Honors & Awards
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New York Upstate Young Transportation Professional of the Year
Institute of Transportation Engineers
ITE Transportation Achievement Awards
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Upstate New York Outstanding Intelligent Transportation Systems Project of the Year
Intelligent Transporation Society of New York
Designed and implemented a traveler information system www.mynittec.org.
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Freshman Scholarship
Tsinghua University
3rd-place, National College Entrance Exam (Science and Technology category), Fujian Province, China
Languages
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English
Full professional proficiency
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Chinese
Native or bilingual proficiency
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Japanese
Elementary proficiency
Organizations
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Standing Committee on Artificial Intelligence and Advanced Computing Application, Transportation Research Board, National Academies
Main Member
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