| Spring 2007 UMASS
Amherst Operations Research / Management Science Seminar Series |
Date: Friday, March 30, 2007 Time: 11:00 AM Location: Isenberg School of Management, Room 112 |
| Speaker: Professor Daiheng
Ni Department of Civil and Environmental Engineering UMass Amherst |
| Biography: Daiheng Ni is an Assistant
Professor of Civil Engineering at the University of Massachusetts
Amherst. He was previously a post-doctoral fellow at the School of
Civil and Environmental Engineering at the Georgia Institute of
Technology. He received an M.Sc. in Civil Engineering, an M.Sc.
in Industrial Engineering, and a Ph.D. in Civil Engineering from the
Georgia Institute of Technology. His research interests include:
traffic flow theory and simulation, intelligent transportation systems,
traffic sensing and information technology, and transportation
logistics and optimization. He has published his research in the IEEE Transactions on Intelligent
Transportation Systems, the International
Journal of Emergency Management, the Journal of Intelligent Transportation
Systems: Technology, Planning, and Operations, and Applied Mathematical Modelling. |
| TITLE: Transportation Modeling
and Simulation: an Effort of 50+ Years |
| Abstract: It has been half a century since
the seminal work on traffic flow, the L-W-R model, was published.
Transportation modeling and simulation has evolved from simple to
complex and numerous models have been proposed and simulation packages
developed. Macroscopic models capture high-level traffic dynamics using
fluid-based techniques; mesoscopic models apply Cellular Automata to
describe traffic movement with reasonable fidelity; microscopic models
provide finer level of detail by personalizing each driver-vehicle unit
and describing its behavior using car-following, lane-changing, and
gap-acceptance logics. Today, these models and packages are serving as
powerful tools in transportation engineering research and practice.
This talk will review the evolution of transportation modeling and
simulation. In addition, future directions will be discussed with an
emphasis on models beyond the microscopic level. |
| This series is organized by the
UMASS Amherst INFORMS Student Chapter. Support for this series is
provided by the Isenberg School of Management, the Department of
Finance and Operations Management, INFORMS, and the John F. Smith
Memorial Fund. For questions, please contact the INFORMS Student Chapter Speaker Series Coordinator, Ms. Trisha Woolley, twoolley@som.umass.edu |