{
  "id": 301236,
  "title": "An arterial bandwidth maximization model with phase release pattern optimization under symmetrical phasing",
  "url": "https://urgent.news/2026/08/08/an-arterial-bandwidth-maximization-model-with-phase-release-pattern",
  "topic": "ai",
  "section": "AI",
  "published": "2026-08-08T00:00:00.000Z",
  "source": {
    "name": "Scientific Reports",
    "slug": "scientific-reports",
    "url": "https://www.nature.com/articles/s41598-026-65240-x"
  },
  "original_language": "en",
  "account": "Traffic signal coordination has been a popular method for reducing traffic congestion due to its efficiency and cost-effectiveness. However, conventional arterial bandwidth maximization techniques under symmetrical phasing often struggle to optimize bandwidth in both directions simultaneously, leading to suboptimal results. This paper introduces the PRPO-Band model, an innovative approach that incorporates phase release pattern optimization within symmetrical phasing to address this challenge. The phase release pattern refers to the coordination of coordinated phases and the distribution of green time across each release, which are optimized alongside the common cycle length and offsets. Employing mixed-integer nonlinear programming (MINLP), the PRPO-Band model is first linearized into a mixed-integer quadratically constrained program (MIQCP), which is subsequently solved using the Gurobi optimizer. The results demonstrate that the proposed PRPO-Band model outperforms two baseline models in terms of arterial-level bandwidth generation. Sensitivity analysis reveals that the large positive parameter M has minimal impact on the model's optimal value. However, the optimal value decreases when either the lower limit on coordinated phase green time or the lower limit on bandwidth is exceeded beyond certain thresholds, while remaining constant under specific combinations of these parameters. This research was supported by grants from the National Natural Science Foundation of China (grant number 52102395) and the Jiangsu Province College Student Innovation and Entrepreneurship Training Program (grant number S202510304202). Conducted by researchers from the School of Transportation and Civil Engineering at Nantong University, China, and the School of Civil and Environmental Engineering at Nanyang Technological University, Singapore, the study's findings are licensed under a Creative Commons Attribution 4.0 International License, promoting open access and sharing of knowledge.",
  "summary": "Scientific Reports, Published online: 08 August 2026; doi:10.1038/s41598-026-65240-x An arterial bandwidth maximization model with phase release pattern optimization under symmetrical phasing",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}