VLSI Based Traffic Light Controller

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This is an unedited manuscript accepted for publication and provided as an Article in Press for early access at the author’s request. The article will undergo copyediting, typesetting, and galley proof review before final publication. Please be aware that errors may be identified during production that could affect the content. All legal disclaimers of the journal apply.

Year : 2025 | Volume : 15 | Issue : 02 | Page : 39-47
    By

    Tanmay Dhamne,

  • Parth Gaikwad,

  • Alisha Shaikh,

  • S.H. Barshikar,

  1. Student, Department of Electronics and Telecommunication, Sinhgad College of Engineering, Pune, Maharashtra, India
  2. Student, Department of Electronics and Telecommunication, Sinhgad College of Engineering, Pune, Maharashtra, India
  3. Student, Department of Electronics and Telecommunication, Sinhgad College of Engineering, Pune, Maharashtra, India
  4. Professor, Department of Electronics and Telecommunication, Sinhgad College of Engineering, Pune, Maharashtra, India

Abstract

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This study details the development and realization of an advanced traffic light control system utilizing VHDL (Very High-Speed Integrated Circuit Hardware Description Language) in conjunction with FPGA (Field Programmable Gate Array) technology. The system is designed to regulate a four-way intersection, with one primary high-traffic road intersecting with a less congested side road. To enhance traffic efficiency and minimize idle times, the model incorporates intelligent features such as a vehicle detection sensor for the side street and a pedestrian walk request mechanism. These components allow the controller to adapt to real-time vehicular and pedestrian demands. Additionally, manual switches are integrated to enable direct user control of signal operations when necessary. The controller functions based on four customizable timing parameters, which govern the signal durations for green, yellow, and red lights, as well as the blinking interval. These timing values are user-adjustable, providing flexibility to accommodate varying traffic conditions. The design was initially developed and verified using the Xilinx ISE 14.7i software suite, allowing thorough simulation and debugging. Real-time signal analysis was performed using Chip Scope, ensuring accurate system behavior. The final hardware implementation was carried out on the Xilinx Spartan 3E FPGA, which offers an affordable and adaptable solution for embedded system applications. This system demonstrates reliability, ease of  use, and cost- effectiveness, making it a viable alternative to traditional traffic control mechanisms. Its modular architecture allows for future upgrades, making it suitable for deployment in urban traffic management systems seeking intelligent and responsive solutions.

Keywords: VLSI-based Traffic Controller, FPGA, VHDL, Xilinx ISE

[This article belongs to Journal of VLSI Design Tools and Technology ]

How to cite this article:
Tanmay Dhamne, Parth Gaikwad, Alisha Shaikh, S.H. Barshikar. VLSI Based Traffic Light Controller. Journal of VLSI Design Tools and Technology. 2025; 15(02):39-47.
How to cite this URL:
Tanmay Dhamne, Parth Gaikwad, Alisha Shaikh, S.H. Barshikar. VLSI Based Traffic Light Controller. Journal of VLSI Design Tools and Technology. 2025; 15(02):39-47. Available from: https://journals.stmjournals.com/jovdtt/article=2025/view=0


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Regular Issue Subscription Original Research
Volume 15
Issue 02
Received 28/03/2025
Accepted 15/05/2025
Published 11/06/2025
Publication Time 75 Days
60

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