Development of a Microcontroller-Based Intelligent Traffic Light Control System for Vehicular Movement in T Junctions

Authors

  • Frederick Ojiemhende Ehiagwina Federal Polytechnic Offa Electrical Electronic Engineering https://orcid.org/0000-0002-1527-4376
  • Seun Musiliu Olatinwo Federal Polytechnic Offa
  • Abdultawwab Ayotunde Ibiyeye Federal Polytechnic Offa
  • Lateef Olashile Afolabi Federal Polytechnic Offa
  • Olusina Teslim Olumbe-Salau Federal Polytechnic Offa

DOI:

https://doi.org/10.52339/tjet.v44i1.1141

Keywords:

Traffic congestion, Microcontroller, Intelligent system, Automated control, Road safety

Abstract

This research is devoted to the issue of regulating traffic congestion in major cities using light-dependent resistors coupled with the PIC16F877A microcontroller. This study proposes an intelligent traffic control system for T-Junctions, utilizing sensing and control to optimize traffic flow through dynamic phase adjustments and congestion reduction, enabled by a microcontroller-based decision-making system. The proposed system reduces traffic congestion, automates control, and enhances safety, minimizing accidents and lowering infrastructure costs. Under simulated environment, it demonstrates an average response time of 50 ms and achieves 99% accuracy in displaying the correct countdown. Finally, the number of state transitions handled per minute is 60 transitions per minute under normal traffic conditions.

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Author Biographies

Seun Musiliu Olatinwo, Federal Polytechnic Offa

Department of Electrical/Electronic Engineering, Federal Polytechnic Offa, Kwara State, Nigeria

Abdultawwab Ayotunde Ibiyeye, Federal Polytechnic Offa

Department of Electrical/Electronic Engineering, Federal Polytechnic Offa, Kwara State, Nigeria

Lateef Olashile Afolabi, Federal Polytechnic Offa

Department of Electrical/Electronic Engineering, Federal Polytechnic Offa, Kwara State, Nigeria

Olusina Teslim Olumbe-Salau, Federal Polytechnic Offa

Department of Electrical/Electronic Engineering, Federal Polytechnic Offa, Kwara State, Nigeria

Additional Files

Published

2025-05-28

How to Cite

Ehiagwina, F., Olatinwo, S., Ibiyeye, A., Afolabi, L., & Olumbe-Salau, O. (2025). Development of a Microcontroller-Based Intelligent Traffic Light Control System for Vehicular Movement in T Junctions. Tanzania Journal of Engineering and Technology, 44(1), 190-203. https://doi.org/10.52339/tjet.v44i1.1141
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