Track Circuits, Relays and Train Detection

RSC 101 explores the fundamental concepts and practical aspects of train detection, a cornerstone of safe and reliable railway operations. The curriculum covers direct current, alternating current, and coded track circuits, delving into their operational theory, maintenance considerations, and diagnostic procedures. A significant focus is placed on vital relay technology, examining its design, testing, and application in safety-critical signaling systems. The course also introduces axle counter systems, discussing their principles of operation, advantages, and integration within modern rail infrastructure. Emphasizing safety throughout, this course prepares technicians to understand, maintain, and troubleshoot these essential components, ensuring the integrity of train detection and signaling systems. Practical laboratory sessions reinforce theoretical knowledge with hands-on experience.

InstructorJacob Calhoun

Course outline

Lectures, virtual labs, and graded assignments — completed in your browser.

01Lesson 1: Introduction to Rail Signaling and Train Detectionlecture

02Lesson 2: Fundamental Electrical Principles for Track Circuitslecture

03Lesson 3: Direct Current (DC) Track Circuits: Principles and Operationlecture

04Hands-on Lab: DC Track Circuit Components and Measurementslab

05Lesson 5: Alternating Current (AC) Track Circuits: Principles and Operationlecture

06Lesson 6: Coded Track Circuits: Theory and Applicationslecture

07Lesson 7: Vital Relays: Construction, Operation, and Safety Principleslecture

08Hands-on Lab: Vital Relay Testing and Circuit Interpretationlab

09Lesson 9: Track Circuit Failure Modes and Troubleshooting Techniqueslecture

10Lesson 10: Axle Counters: Principles of Operation and System Architecturelecture

11Hands-on Lab: Axle Counter System Configuration and Diagnosticslab

12Lesson 12: Train Detection System Integration and Interfacinglecture

13Lesson 13: Safety Regulations and Maintenance Practices for Train Detection Systemslecture

14Capstone Service Project: Design and Test a Basic Train Detection Systemassignment

Syllabus

["Week 1: Lesson 1: Introduction to Rail Signaling and Train Detection","Week 2: Lesson 2: Fundamental Electrical Principles for Track Circuits","Week 3: Lesson 3: Direct Current (DC) Track Circuits: Principles and Operation","Week 4: Hands-on Lab: DC Track Circuit Components and Measurements","Week 5: Lesson 5: Alternating Current (AC) Track Circuits: Principles and Operation","Week 6: Lesson 6: Coded Track Circuits: Theory and Applications","Week 7: Lesson 7: Vital Relays: Construction, Operation, and Safety Principles","Week 8: Hands-on Lab: Vital Relay Testing and Circuit Interpretation","Week 9: Lesson 9: Track Circuit Failure Modes and Troubleshooting Techniques","Week 10: Lesson 10: Axle Counters: Principles of Operation and System Architecture","Week 11: Hands-on Lab: Axle Counter System Configuration and Diagnostics","Week 12: Lesson 12: Train Detection System Integration and Interfacing","Week 13: Lesson 13: Safety Regulations and Maintenance Practices for Train Detection Systems","Week 14: Capstone Service Project: Design and Test a Basic Train Detection System"]