With spatial queueing, the P0 responsive traffic signal control policy may fail to maximise network capacity even if queue storage capacities are very large

Michael J Smith; Francesco Viti; Wei Huang; Richard Mounce

doi:10.1016/j.trb.2023.102814

With spatial queueing, the P0 responsive traffic signal control policy may fail to maximise network capacity even if queue storage capacities are very large

Michael J Smith, Francesco Viti, Wei Huang, Richard Mounce^* (Corresponding Author)

^*Corresponding author for this work

Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The local responsive traffic signal control policy P0 was designed to maximise network capacity under certain conditions and it has been shown, in Smith (1979a, b, 1980) and Smith et al. (2019a, 2022), that the P0 policy and related policies do indeed maximise the capacity of many steady state networks or quasi-dynamic networks with vertical and spatial queues under various conditions. This current paper shows, by giving an example, that if queueing is spatial then the original policy P0 itself may not maximise network capacity, even if the queue storage capacity of each link is very large.

Original language	English
Article number	102814
Number of pages	15
Journal	Transportation Research Part B: Methodological
Volume	177
Early online date	9 Sept 2023
DOIs	https://doi.org/10.1016/j.trb.2023.102814
Publication status	Published - 1 Nov 2023

Keywords

Capacity-maximising traffic control
Quasi-dynamic traffic assignment
Responsive traffic control

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10.1016/j.trb.2023.102814Licence: CC BY

Smith_etal_TRPB_With_Spatial_Queueing_VoR
© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Final published version, 741 KBLicence: CC BY

Cite this

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AU - Huang, Wei

AU - Mounce, Richard

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AB - The local responsive traffic signal control policy P0 was designed to maximise network capacity under certain conditions and it has been shown, in Smith (1979a, b, 1980) and Smith et al. (2019a, 2022), that the P0 policy and related policies do indeed maximise the capacity of many steady state networks or quasi-dynamic networks with vertical and spatial queues under various conditions. This current paper shows, by giving an example, that if queueing is spatial then the original policy P0 itself may not maximise network capacity, even if the queue storage capacity of each link is very large.

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KW - Quasi-dynamic traffic assignment

KW - Responsive traffic control

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JF - Transportation Research Part B: Methodological

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With spatial queueing, the P0 responsive traffic signal control policy may fail to maximise network capacity even if queue storage capacities are very large

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