Research on Urban Road Traffic Network Pinning Control Based on Feedback Control

Guimin Gong, Wenhong Lv () and Qi Wang
Additional contact information
Guimin Gong: College of Transportation, Shandong University of Science and Technology, Qingdao 266590, China
Wenhong Lv: College of Transportation, Shandong University of Science and Technology, Qingdao 266590, China
Qi Wang: College of Transportation, Shandong University of Science and Technology, Qingdao 266590, China

Sustainability, 2023, vol. 15, issue 12, 1-17

Abstract: The development and application of pinning control methods create conditions for traffic area control, and the objective of possessing global control of the road network is achieved by controlling a small number of intersections in the road network. Based on this, an urban road network pinning control strategy is designed in this paper. Firstly, this paper establishes the state equation of the urban road traffic network according to the characteristics of traffic flow, and proposes an associated state equation for road sections and key intersections. Secondly, by adjusting the signal timing scheme of key intersections as the target of pinning control, it can restrain the road network to achieve the state with the minimum difference between the actual flow and the desired flow on each road section. At the same time, considering the dynamic nature of traffic flow and the fact that the flow rate on the road section changes continuously, a feedback control mechanism is established in order to determine the threshold value at which each road section enters the congestion state. In addition, when the flow rate of a road section exceeds its threshold value to reach the congestion state, the signal timing scheme of the key intersection needs to be adjusted again to ensure that the flow rate on the road section is always lower than the threshold value at which it enters the congestion state. The results show that the average delay time and average stopping time of the road network are reduced by 35.03s and 18.37s, respectively, compared with the original control scheme, proving that the control strategy can effectively reduce congestion and improve the operational efficiency of the road network.

Keywords: urban road networks; pinning control; key nodes; traffic control (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/12/9631/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/12/9631/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:12:p:9631-:d:1172069

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().