September 27, 2019: Mini-symposium “Queueing and traffic”
On September 27, Anna Oblakova will defend her PhD-thesis"Queueing models for urban traffic networks". Prior to this public defense starting at 16:30, a mini-symposium on “Queueing and traffic ” is planned, which will be held at the University of Twente, building Ravelijn, room 2334, for which you are cordially invited. The mini-symposium is free of charge and registration is appreciated by sending an email to a.oblokova@utwente.nl. You are more than welcome to send this invitation to other people that might be interested .
Program
12:30 - 13:30 Welcome Lunch at Ravelijn Atrium
13:40 - 13:45 Opening mini-symposium by the chairman, Ahmad Al Hanbali
13:45 - 14:15 Bart van Arem - Automated Driving and new paradigms in human factors and traffic flow theory
14:15 - 14:45 Marko Boon - Platoon Forming Algorithms for Intelligent Street Intersections
14:45 - 15:15 Coffee break
15:15 - 15:45 Sindo Núñez Queija - Proportional green time scheduling for traffic lights
16:30 - 18:00 PhD defense – Queueing models for urban traffic networks (Location: Building Waaier, Room 4)
Bart van Arem - Automated Driving and new paradigms in human factors and traffic flow theory
Automated Driving is believed to deliver unprecedented levels of traffic efficiency and safety. We will review current and expected developments in automated driving. In the decades to come, traffic on our roads will consist of a mix of manually and automatically driven vehicles. In order to shed light on the extent to which automated driving is going to deliver on its promise, we present recent and ongoing research into the levels of involvement of humans at individual level as well as the changing interactions at traffic flow level.
Marko Boon - Platoon Forming Algorithms for Intelligent Street Intersections (joint work with Rik Timmerman)
We study intersection access control for autonomous vehicles. Platoon forming algorithms, which aim to organize individual vehicles in platoons, are very promising. To create those platoons, we slow down vehicles before the actual arrival at the intersection in such a way that each vehicle can traverse the intersection at high speed. This increases the capacity of the intersection significantly, offering huge potential savings with respect to travel time compared to nowadays traffic.
We propose several new platoon forming algorithms and provide an approximate mean delay analysis for our algorithms. A comparison between the current day practice at intersections (through a case study in SUMO) and our proposed algorithms is provided. Simulation results for fairness are obtained as well, showing that platoon forming algorithms with a low mean delay sometimes are relatively unfair, indicating a potential need for balancing mean delay and fairness.
Sindo Núñez Queija - Proportional green time scheduling for traffic lights
(joint work with Peter Kovacs, Tung Le, Hai L. Vu and Neil Walton)
We consider decentralized scheduling of a large number of urban traffic lights. We investigate factors determining system performance, in particular, the length of the traffic light cycle and the proportion of green time allocated to each junction. We then study the effect of the length of the
traffic cycle on the stability region of an urban traffic network and derive a simple square-root cycle length rule which is optimal under heavy traffic in an approximating polling model. We prove the maximal stability of a road network under this control scheme. Further, we support the analysis through a simulation analysis of our policy on the Melbourne CBD urban road network.