Free · Online · Self-Paced · 4 Hours
A practical understanding of Single Section Axle Counter (SSDAC) and HASSDAC systems, their components, functioning, and applications in modern railway signaling.
Four self-paced sessions moving from axle counters vs. track circuits, through SSDAC's components and functioning, to HASSDAC's high-availability design and real system integration.
What's Included
A tight, focused package designed for one job — give you a clean operating picture of high-speed rail and modern signalling in ~2 hours, and point you to the right next step.
No payment gate, no card required — enrollment, access, and your first two assessment attempts are free.
Four sessions covering SSDAC and HASSDAC end to end, from fundamentals to system integration, on your own schedule.
Revisit any session and rewatch the material at your own pace for a full 90 days.
Why axle counters improve on conventional track circuits for train detection, and the basic concept behind Single Section Axle Counter (SSDAC).
How SSDAC detects axles at the track unit, processes train presence in the evaluation unit, and surfaces indications and alarms on the display panel.
What separates HASSDAC from standard SSDAC, and why redundancy and fault tolerance matter for critical sections and high-density tracks.
Basic troubleshooting for SSDAC and HASSDAC, how they interface with interlocking and signaling, and real operational scenarios and failure examples.
Once you finish, email [email protected] for current assessment and certification guidance.
Ready when you are
Enroll now and start earning Rail Points on completion.
Eligibility
No prior professional experience is required — the course is open to beginners, with a basic understanding of railway signaling helpful but not mandatory.
Railway signaling engineers and technicians, and professionals in train detection, interlocking, or railway operations.
Engineering students or fresh graduates building a career in railway signaling and safety systems.
Anyone interested in the working, applications, and practical aspects of SSDAC and HASSDAC systems.
Open entry
The course is open to beginners — a basic understanding of railway operations helps but isn't mandatory, and it builds SSDAC and HASSDAC knowledge from fundamentals up across four self-paced sessions.
Why This Course Matters
Train detection has to work every time, on every section, regardless of ballast condition, rail corrosion, or insulation faults that can trip up traditional track circuits. Axle counters solve that problem differently — counting axles in and out of a section rather than relying on a continuous electrical circuit — which is why SSDAC and its high-availability variant, HASSDAC, have become standard on critical and high-density sections.
This course covers that system end to end: how the track unit, evaluation unit, and display panel work together to detect train presence, what redundancy and fault tolerance actually mean in HASSDAC's design, and how the whole system integrates with interlocking and signaling in daily operation — including the troubleshooting and failure scenarios a technician actually encounters.
Learning Outcomes
A clear, structured set of outcomes you can point to on your CV, interview or team introduction.
Understand the fundamental working principles of SSDAC and HASSDAC systems.
Identify and explain the key components of axle counter systems and their functions.
Differentiate between SSDAC and HASSDAC and understand the importance of high availability features.
Interpret system indications, alarms, and troubleshooting procedures.
Understand how axle counters integrate with interlocking and signaling systems.
Apply practical knowledge to analyze real-world operational scenarios.
Gain awareness of emerging trends in axle counter technology and railway signaling.
Curriculum
Four compact sessions covering rail speed, signaling, control, and protection.
Session 01
What you will learn
Faculty
Railway SignalingA. V. R. Subbarao
Teaches Railway Signaling
A. V. R. Subbarao
Teaches Railway Signaling
“Profile details coming soon.”
Railway SignalingB. Sambi Reddy
Teaches Axle Counters & SSDACs
B. Sambi Reddy
Teaches Axle Counters & SSDACs
“Profile details coming soon.”
ERTMSDavid Cuesta
Teaches ERTMS and European Signaling
David Cuesta
Teaches ERTMS and European Signaling
“Profile details coming soon.”
Metro & HSRDipankar Ghosh
Teaches Rail, Infra & Mobility
Dipankar Ghosh
Teaches Rail, Infra & Mobility
“Profile details coming soon.”
How to Enroll
Five short steps — from a free registration to earning your first 50 Rail Points and choosing your next signalling or HSR course.
Get access to the course within 24 business hours of enrollment. Access is valid for 90 days.
Our team sends your login credentials to access the course on our learning management system.
Once you finish the course, email [email protected] to request your assessment link.
Stories
A Proud Milestone - I’m delighted to share that I have completed the Executive Post Graduate Programme in Rail Management (Cohort Batch-2) from IIM Kashipur. My sincere thanks to everyone who supported me throughout this 14-month journey. The programme reignited the same curiosity and passion I felt after completing my engineering. The on-campus bootcamp at IIM Kashipur was truly enriching, and earning IIM alumni status is a matter of immense pride. I look forward to staying connected with the alumni community and applying these learnings to contribute meaningfully to the rail industry. A milestone achieved, a journey that continues.
Executive Post Graduate Certificate Program in Rail Management
Certified by ZRA and IIM Kashipur
Certificate & assessment
Email [email protected] once you complete the course to receive current assessment and certification guidance.
Rail Rewards
Rail Rewards is ZRA's learner motivation program. Every eligible activity earns points you can redeem against merchandise, badges and course discounts.
This course
University
Categories
Learners
Rail Rewards, explained
0:47FAQ
No. No prior professional experience is required — the course is open to beginners, and a basic understanding of railway signaling is helpful but not mandatory.
90 days from enrollment, with all recorded sessions and materials available on the learning management system throughout.
An online, proctored assessment (60–90 minutes, multiple choice) with a minimum passing score of 60%. You get two free attempts; further attempts cost USD 50 each.
A Certificate of Completion from Railway Academy, issued once you pass the assessment.
Email [email protected] once you finish the course to receive the current assessment link and certification guidance.
We will match you to the right free course or certification route.
