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On maximally stabilizing traffic signal control with unknown turn ratios

Savla, Ketan ; Lovisari, Enrico LU and Como, Giacomo LU (2014) 19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014 19. p.1849-1854
Abstract

This paper designs distributed dynamic traffic signal control policies for urban traffic networks. Vehicles at the end of an approach to an intersection queue up in separate lanes corresponding to different possible turn maneuvers at the upcoming intersection, according to fixed turn ratios. The departure rate of vehicles from the queue is governed by traffic signal control at the intersections. We consider traffic signal control architectures under which, at every intersection, only a subset of non-conflicting approaches get green light simultaneously. We propose a class of cooperative green light policies, under which traffic signal control at an intersection requires information only about the occupancy levels on the lanes incoming... (More)

This paper designs distributed dynamic traffic signal control policies for urban traffic networks. Vehicles at the end of an approach to an intersection queue up in separate lanes corresponding to different possible turn maneuvers at the upcoming intersection, according to fixed turn ratios. The departure rate of vehicles from the queue is governed by traffic signal control at the intersections. We consider traffic signal control architectures under which, at every intersection, only a subset of non-conflicting approaches get green light simultaneously. We propose a class of cooperative green light policies, under which traffic signal control at an intersection requires information only about the occupancy levels on the lanes incoming at that intersection. In particular, such a policy does not require information about turn ratios, external arrival rates or departure rates. We show that such minimalist policies are maximally stabilizing for acyclic network topologies under some scenarios, and, when the network is stabilizable, the network admits a globally asymptotically stable equilibrium under these policies. Simulations to illustrate the applicability of our results to cyclic network topologies are also presented.

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Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Distributed traffic signal control, Monotone systems, Nonlinear control, Switching networks
host publication
19th IFAC World Congress IFAC 2014, Proceedings
volume
19
pages
6 pages
publisher
IFAC Secretariat
conference name
19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014
conference location
Cape Town, South Africa
conference dates
2014-08-24 - 2014-08-29
external identifiers
  • scopus:84929749451
ISBN
9783902823625
DOI
10.3182/20140824-6-ZA-1003.02728
language
English
LU publication?
yes
id
ff5e5e26-ab07-45fc-9248-09efe732b130
date added to LUP
2016-08-25 19:07:04
date last changed
2021-10-06 02:26:07
@inproceedings{ff5e5e26-ab07-45fc-9248-09efe732b130,
  abstract     = {<p>This paper designs distributed dynamic traffic signal control policies for urban traffic networks. Vehicles at the end of an approach to an intersection queue up in separate lanes corresponding to different possible turn maneuvers at the upcoming intersection, according to fixed turn ratios. The departure rate of vehicles from the queue is governed by traffic signal control at the intersections. We consider traffic signal control architectures under which, at every intersection, only a subset of non-conflicting approaches get green light simultaneously. We propose a class of cooperative green light policies, under which traffic signal control at an intersection requires information only about the occupancy levels on the lanes incoming at that intersection. In particular, such a policy does not require information about turn ratios, external arrival rates or departure rates. We show that such minimalist policies are maximally stabilizing for acyclic network topologies under some scenarios, and, when the network is stabilizable, the network admits a globally asymptotically stable equilibrium under these policies. Simulations to illustrate the applicability of our results to cyclic network topologies are also presented.</p>},
  author       = {Savla, Ketan and Lovisari, Enrico and Como, Giacomo},
  booktitle    = {19th IFAC World Congress IFAC 2014, Proceedings},
  isbn         = {9783902823625},
  language     = {eng},
  pages        = {1849--1854},
  publisher    = {IFAC Secretariat},
  title        = {On maximally stabilizing traffic signal control with unknown turn ratios},
  url          = {http://dx.doi.org/10.3182/20140824-6-ZA-1003.02728},
  doi          = {10.3182/20140824-6-ZA-1003.02728},
  volume       = {19},
  year         = {2014},
}