A Short Note On Traffic Signal Systems And Detection Systems

1433 Words6 Pages
DETECTION TECHNOLOGIES

by

ANMOL SHRIVASTAVA, EIT

Professor Rahim F. Benekohal
Traffic Signal Systems
CEE 517

Spring 2015
TERM PAPER

TABLE OF CONTENTS

EXECUTIVE SUMMARY 3
INTRODUCTION 5
OBJECTIVES 6
IMPORTANCE AND RELEVANCE 7
INTSRUSIVE (Inductive Loop) 8
Method and Concept 9
Features of the system 9
Implementation 11
Results 12
Shortcomings and Limitations 12
NON-INTRUSIVE (Microwave Radar) 13
Method and Concept 14
Features of the system 14
Implementation 15
Results 17
Shortcomings and Limitations 18
NON-INTRUSIVE (Video Detection) 19
Method and Concept 20
Features of the system 20
Implementation 21
Results 22
Shortcomings and Limitations 24
COMPARISON OF VEHICLE DETECTORS 25
SOLUTIONS AND RECOMMENDATIONS 30
CONCLUSION 31
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• Snow, Fog will affect the system

Video Detection • Monitors multiple lanes and multiple lane for detection
• Rich collection of data visual data available
• Information gathered at one camera location can be linked to another which makes it a wide-area detection system • Maintenance and installation of camera requires lane closure
• Performance affected by inclement weather such as fog, rain, and snow; vehicle shadows; sun glint
• A height of 30 to 50-ft camera mounting height for optimum presence detection and speed measurement
• Strong winds or vibration might affect the camera
• Cost-effective only when many detection zones within the field-of-view are established
• Reliable night time signal actuation requires adequate street lighting
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