November 14, 2012
Dr. Nebiyou Tilahun, UPP, presents a seminar entitled "An agent based model of origin destination estimation (ADOBE)" Wednesday, November 14th at 4:00 pm in Rm 1127 SEO
November 7, 2012
Mr. Thomas Murtha, CMAP, will address the CTS-IGERT community at 4:00 p.m. in Room 1127 SEO.
October 24, 2012
Please join us in welcoming Dr. Bo Zou, CME, on Wednesday, October 24th, Room 1127 SEO, 4:00 p.m.
September 25, 2012
Award Received by Joshua Auld, CTS-IGERT alumnus.
April 20, 2012
Congratulations to James Biagioni, CTS Fellow and CS PhD candidate, winner of the Dean's Scholar award.
January 2, 2012
James Biagioni, CTS Fellow, receives "Best Presentation Award" at SenSys2011
July 30, 2010
Dr. Ouri Wolfson, Dr. Phillip Yu, and Leon Stenneth, CS student and CTS Associate, recently had a paper accepted to the 6th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob 2010).
January 21, 2011
CTS-IGERT is pleased to co-host a seminar with Dr. Kouros Mohammadian, CME, on Friday, January 21st at 2:30 p.m. Location: Room 1000 SEO
Dr. Nikolas Geroliminis,
Assistant Professor and Chair of
Urban Transport Systems Laboratory
Dr. Geroliminis will present a seminar entitled: "A macroscopic approach for city planning and management consistent with the physics of traffic"
This talk will be about the macroscopic modeling and control of traffic in congested cities. In our research we have observed with real data the so-called macroscopic or network fundamental diagram, connecting network flows and densities for homogeneously loaded urban networks. This MFD tells us that beyond some critical point the performance of traffic networks deteriorates with every extra vehicle entering the network even to the point of total gridlock. So what is true on small road stretches (flow decreases with increasing density in congestion) appears to also hold in entire networks, albeit that the underlying mechanisms are different. Nonetheless, in both cases we see that beyond some critical point, in traffic operations things go from bad to worse. However in reality, many urban transportation networks are heterogeneous with different levels of congested conditions. Therefore we are interested in studying whether MFD also exists in heterogeneous networks that can be partitioned into homogeneous components. We show that the spatial distribution of density/occupancy in the network is one of the key components that affect the scatter of an MFD and its shape. In this lecture we will explain the MFD and its consequences with some examples and will sketch perspectives for applications and further research.