School of Civil Engineering

A Methodology to Estimate the Macroscopic Fundamental Diagram (MFD) Using the Critical Links in an Urban Network 

Traffic congestion has been increasing due to population growth and rapid development of urban areas. Traffic controls methods such as road pricing, adaptive signal controls, etc. are essential to mitigate congestion in urban areas and improve mobility at the network level. To do so, traffic dynamics should be properly monitored. Macroscopic Fundamental Diagram (MFD), which exhibits the relationship between average flow and average density of an urban network, is a promising framework for monitoring and controlling urban traffic networks. Given that the monitoring resources (e.g. loop detectors, probe vehicle data, etc.) are limited in real-world networks, acquiring adequate data to estimate the MFD is very important. Therefore, this study aims to identify the critical links which are the links that represent average traffic conditions in the network. Therefore, MFD can be estimated using only flow and density measurements from the critical links which are a small subset of the entire links in the network. 

10:30am - 11:30am

Thursday, 11 July 2019


Room 420
General Purpose South (78)