ABSTRACT
The project “microcontroller based intelligent traffic light system with automatic street light and warning light” was designed to tackle the traffic issues in the country so as to establish automatic traffic control and monitoring system with near perfection. 
The project intelligent traffic light with automatic street light and warning light is a complex microcontroller based project that was designed to control traffic on a four way road network.
The system is embedded with sensors that automatically detect lanes with traffic and lanes that are traffic free. Based on these input from the sensors the controlling system makes its decision. Nevertheless, the system also comes with automatic street light controller that automatically switches on the street lights once there is darkness while offing the lights once the weather is bright. Further more, the warning light blinks before transitioning from one state to another (e.g from stop to ready or go).
In this design we have implored the use of both hardware and software to bring about the entire project. The hardware components are solely coordinated by the AT89S51 micro controller chip while the programming language is used to program the chip.
 TABLE OF CONTENTS
 
 CHAPTER ONE: INTRODUCTION
 Background of project
 objective of the project               
 Justification of the project
 Scope of project
 Constraints
 Block overview of the stages
 Project report organization  
 
 CHAPTER TWO
 SYSTEM ANALYSIS AND DESIGN 
 Project specification 
 Component description/analysis
 Step down transformer             
 Diodes 
 Light emitting diodes or LED’s       
 Bridge rectifier
 Voltage regulators 
 Resistor 
 Transistors 
 Light dependant resistor (LDR)
 Electromechanical relay 
 Hardware subsystem  
 
 CHAPTER THREE
 SYSTEM IMPLEMENTATION
 Conceptual overview of project layout
 Design process 
 Software design 
 Software development 
 Development process
 Compiling and linking 
 Making an led blink with AT89C51 micro-controller 
 System control programme steps 
 
 CHAPTER FOUR: TESTING
 System testing and integration              
 Test plan and test data   
 Component test
 System test   
 Transformer test (step-down)
 Other test
 Experimented result/actual result
 Performance evaluation
 
 CHAPTER FIVE: SUMMARY
 Summary and Conclusion 
 Summary of achievement 
 Problems enc6ountered and solution 
 Suggestions for further improvement     
 Conclusion  
 References