Effects of Cooperative Vehicle Dynamics in Traffic Flow Modeling: Simulation and Control

by Muhammed Raşit Çevikalp | Dec 19, 2022

Project Title: Effects of Cooperative Vehicle Dynamics in Traffic Flow Modeling: Simulation and Control
Project Type: TÜBİTAK-1001
Project Coordinator: Prof. Dr. Hilmi Berk Çelikoğlu

The proposed study, supported in part through TUBITAK 1001 Programme with around USD95000 of budget, concentrates on explicitly analyzing the effects of cooperative vehicle dynamics in traffic flow in the purpose of proposing an overall frame for modeling, simulation and management of mixed traffic that is set with the integration of a traffic flow model and a control approach. Therefore, considering the needs for coping with traffic in conjunction with the existing technological advances; the main problem handled in the present study is the congestion and safety effect of vehicular traffic, and the solution sought is to improve the condition of urban freeway traffic flow adopting the advances on inter-vehicular communication technology and control theory.

The novel contribution of the study proposed is that a comparative evaluation of the control algorithm H∞, which will be used for the first time in the literature for imposing an integrated variable speed limiting and ramp metering control to mixed traffic flow on freeways. Models and methods available to be utilized in an integrated control and inter-vehicular communication technology will be used to seek solutions. The comparative evaluation of the proposed method with respect to an existing frequently employed control method will be performed alternating the car-following behavior model in simulation environment with intervention using the application-programming interface. The success of the proposed solution framework will be discussed dependent on tests considering the performance metrics frequently used in the existing literature, i.e., delay, system travel time, fuel consumption, emissions, and, etc.

The feature of the study requires the employment of multiple methods as the analytical car following models and the control algorithms are to be integrated to a traffic simulator. Therefore, analytical and simulation-based optimization methods will be used. In the purpose of proposing an overall frame for modeling, simulation and management of mixed vehicular traffic, the proposed study concentrates on analyzing in details the effects of cooperative vehicle dynamics in traffic flow considering explicitly the approaches to the modeling and control of traffic flow.

As congestion and accidents are two main consequences of vehicular traffic that have impacts from several aspects ranging from user level to system level, contributions of the present study lie in congestion control domain with an integrate modeling and control structure for mixed traffic, including autonomous vehicles, propagating over a network.

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İTÜ Faculty of Civil Engineering

It can be accepted that the history of ITU Civil Engineering Faculty was commenced in 1727 by the establishment of Humbarahane during the era of Damat İbrahim Paşa. However, this attempt was to no avail due to the martyrization of the studwents of this school by the Janissaries.

In 1734, during the grand viziership of Topal Osman Paşa, classes related to Civil Engineering was being taught in Hendesehane, which was founded in Üsküdar. Similarly, this school was also closed after three years due to the opposition of the Janissaries. The reasons of the tragedy that occured in Battle of Chesma, 1770 were inadequacy of the ships and the ignorance of the Ottoman Navy.

Although the Atlantic Map (1513) and the Map of Europe and the Mediterranean Sea (1523) by Piri Reis were the leading pieces of the era, Ottoman viziers were so ignorant that they claimed it was impossible for the Russian Baltic Fleet to reach the Mediterranean Sea assuming that there were no sea connection. With the proposal from Gazi Hasan Paşa and Baron de Tott, Mühendishane-i Bahri-i Humayun was established during the time of Sultan Mustafa III, aiming to train naval construction engineers. Since Ottoman Empire did not have any engineering schools at the time, military engineering classes were taught by French engineers beginning from 1784. French lecturers had to return to their country in 1788 with the increasing suppression from Austria and Russia, which were unwilling for the development and thriving of Ottoman Empire. In 1759, during the Grand Viziership of Koca Ragıp Paşa, Humbarahane was reopened in Karaağaç, Haliç (Golden Horn) and continued to teach even though it was incompetent. In 1792, Lağımcı Ocağı and Humbaracı Ocağı (Guild of Sappers) were established.