Transport Wednesday 12th June - Beyond Collision Data: Vehicular Traffic Safety Analysis and Modeling

12 juni 2019 12:30 t/m 13:45 - Locatie: CEG Room 4.98

Transport Wednesday: Beyond Collision Data: Vehicular Traffic Safety Analysis and Modeling

Next Wednesday there will be Transport Special lunch lecture about traffic safety. Dr. Samer Hamder from the George Washington University will present at TU Delft about his research to go beyond collision data. This lunch lecture will take place Wednesday 12th of June, starting at 12:30. Sign-up here

The main objective of this research is to capture collision formation mechanisms on freeway networks while considering behavioral, infrastructure and weather characteristics. To accomplish such objective, collision involvement rates are extracted while producing different macroscopic fundamental diagrams for a variety of real-world study locations. This allows for insight to be gained into the effects of exogenous factors along with link and network level aggregation of target metrics. A microscopic traffic simulation model is then implemented while incorporating the psychology and heterogeneity of human drivers. A driving simulator experiment is used to collect data from young drivers during car-following and near-collision scenarios with various audio and audio-visual collision warnings. Using this data, the implemented traffic simulation model is calibrated. The calibrated model is then validated against real-world collision rate data. Results show that the implemented modeling approach can accurately recreate collision formations observed on freeways. Moreover, Differences between high school and college student drivers’ response times and collision occurrence are found for the tested collision warnings. The findings can lead to tailored messaging systems and traffic control tools that may benefit drivers and traffic operators alike in terms of congestion and safety mitigation.

About the lecturer:

Dr. Samer Hani Hamdar is an Associate Professor of Civil and Environmental Engineering at the George Washington University (GW) where he directs the GW Transportation Program. Dr. Hamdar holds a BE Degree from the American University of Beirut (Lebanon, 2003), a MS Degree from University of Maryland, College-Park (USA, 2004), and a PhD degree from Northwestern University (USA, 2009). He is currently on Sabbatical Leave where he is employed as a Visiting Associate Professor at the Delft University of Technology (TU Delft), the Netherlands. Dr. Hamdar is the chair of the Transportation Research Board Connected and Automated Vehicle Subcommittee and is a member of the TRB Emergency Evacuation and Traffic Flow Theory and Characteristics Committees. In terms of research, Dr. Hamdar has 15 years of experience working on driver behaviour modelling, evacuation management, intelligent transportation systems, traffic flow theory and safety. He has an international research background participating/leading projects in Germany, South Korea and the United States. He is a recipient of the National Science Foundation CAREER Award titled: “Collision Prediction and Vehicular Control Using an Episode-Based Modeling Framework.”


Date & Time: Wednesday 12th of June 2019, 12:30 - 13:45. 

Location: Lecture room 4.98, Faculty of CEG, Delft University of Technology. 

Free lunch included if you sign-up before June 11th! 

Sign-up required, you can do so here.