Intelligent Control of Urban Road Networks: Algorithms, Systems and Communications

Mike Smith

doi:10.1007/978-3-642-11284-3_13

Intelligent Control of Urban Road Networks: Algorithms, Systems and Communications

Mike Smith

Mathematics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper considers control in road networks. Using a simple example based on the well-known Braess network [1] the paper shows that reducing delay for traffic, assuming that the traffic distribution is fixed, may increase delay when travellers change their travel choices in light of changes in control settings and hence delays. It is shown that a similar effect occurs within signal controlled networks. In this case the effect appears at first sight to be much stronger: the overall capacity of a network may be substantially reduced by utilising standard responsive signal control algorithms. In seeking to reduce delays for existing flows, these policies do not allow properly for consequent routeing changes by travellers. Control methods for signal-controlled networks that do take proper account of the reactions of users are suggested; these require further research, development, and careful real-life trials.

Original language	English
Title of host publication	Communications Infrastructure. Systems and Applications in Europe
Subtitle of host publication	Proceedings of the First International ICST Conference, EuropeComm 2009, London, UK, August 2009
Editors	Rashid Mehmood, Eduardo Cerqueira, Radoslaw Piesiewicz, Imrich Chlamtac
Publisher	Springer
Pages	116-127
Number of pages	12
Volume	16
ISBN (Electronic)	978-3-642-11283-6
ISBN (Print)	3-642-11283-8
DOIs	https://doi.org/10.1007/978-3-642-11284-3_13
Publication status	Published - 2010

Publication series

Name	Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
Publisher	Springer

Access to Document

10.1007/978-3-642-11284-3_13

http://www.springerlink.com/content/v65340v717707h06/

Cite this

Smith, M. (2010). Intelligent Control of Urban Road Networks: Algorithms, Systems and Communications. In R. Mehmood, E. Cerqueira, R. Piesiewicz, & I. Chlamtac (Eds.), Communications Infrastructure. Systems and Applications in Europe: Proceedings of the First International ICST Conference, EuropeComm 2009, London, UK, August 2009 (Vol. 16, pp. 116-127). (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering). Springer. https://doi.org/10.1007/978-3-642-11284-3_13

Smith, Mike. / Intelligent Control of Urban Road Networks : Algorithms, Systems and Communications. Communications Infrastructure. Systems and Applications in Europe: Proceedings of the First International ICST Conference, EuropeComm 2009, London, UK, August 2009. editor / Rashid Mehmood ; Eduardo Cerqueira ; Radoslaw Piesiewicz ; Imrich Chlamtac. Vol. 16 Springer, 2010. pp. 116-127 (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering).

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title = "Intelligent Control of Urban Road Networks: Algorithms, Systems and Communications",

abstract = "This paper considers control in road networks. Using a simple example based on the well-known Braess network [1] the paper shows that reducing delay for traffic, assuming that the traffic distribution is fixed, may increase delay when travellers change their travel choices in light of changes in control settings and hence delays. It is shown that a similar effect occurs within signal controlled networks. In this case the effect appears at first sight to be much stronger: the overall capacity of a network may be substantially reduced by utilising standard responsive signal control algorithms. In seeking to reduce delays for existing flows, these policies do not allow properly for consequent routeing changes by travellers. Control methods for signal-controlled networks that do take proper account of the reactions of users are suggested; these require further research, development, and careful real-life trials. ",

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year = "2010",

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series = "Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering",

publisher = "Springer",

pages = "116--127",

editor = "Rashid Mehmood and Eduardo Cerqueira and Radoslaw Piesiewicz and Imrich Chlamtac",

booktitle = "Communications Infrastructure. Systems and Applications in Europe",

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Smith, M 2010, Intelligent Control of Urban Road Networks: Algorithms, Systems and Communications. in R Mehmood, E Cerqueira, R Piesiewicz & I Chlamtac (eds), Communications Infrastructure. Systems and Applications in Europe: Proceedings of the First International ICST Conference, EuropeComm 2009, London, UK, August 2009. vol. 16, Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, Springer, pp. 116-127. https://doi.org/10.1007/978-3-642-11284-3_13

Intelligent Control of Urban Road Networks: Algorithms, Systems and Communications. / Smith, Mike.
Communications Infrastructure. Systems and Applications in Europe: Proceedings of the First International ICST Conference, EuropeComm 2009, London, UK, August 2009. ed. / Rashid Mehmood; Eduardo Cerqueira; Radoslaw Piesiewicz; Imrich Chlamtac. Vol. 16 Springer, 2010. p. 116-127 (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - This paper considers control in road networks. Using a simple example based on the well-known Braess network [1] the paper shows that reducing delay for traffic, assuming that the traffic distribution is fixed, may increase delay when travellers change their travel choices in light of changes in control settings and hence delays. It is shown that a similar effect occurs within signal controlled networks. In this case the effect appears at first sight to be much stronger: the overall capacity of a network may be substantially reduced by utilising standard responsive signal control algorithms. In seeking to reduce delays for existing flows, these policies do not allow properly for consequent routeing changes by travellers. Control methods for signal-controlled networks that do take proper account of the reactions of users are suggested; these require further research, development, and careful real-life trials.

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Smith M. Intelligent Control of Urban Road Networks: Algorithms, Systems and Communications. In Mehmood R, Cerqueira E, Piesiewicz R, Chlamtac I, editors, Communications Infrastructure. Systems and Applications in Europe: Proceedings of the First International ICST Conference, EuropeComm 2009, London, UK, August 2009. Vol. 16. Springer. 2010. p. 116-127. (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering). doi: 10.1007/978-3-642-11284-3_13