HomeAnasayfa / ProgrammeProgram / RSM 511E

RSM 511E — Railway Signalling Systems

Optional compulsory course of the electrical & electronics option, taught in English.

Dates

29 September 2025 - 2 January 2026

Instructor and Co-Instructor

Prof. Dr. M. Turan Söylemez

Faculty of Electrical and Electronics Eng./ Control and Automation Eng. Dept.

Room: 4207, Tel: 0212 – 285 35 70

E-mail:soylemezm@itu.edu.tr



R. A. Dr. Serhat Boynukalın

Graduate School / Railway System Engineering Master Program

Room: 5003, Tel: 0212 – 285 69 87

E-mail:boynukalin@itu.edu.tr

Course Hours:

Thursday (09:30 – 12:29)

Location

EEF - 5106

Books

1) Theeg G.; Vlasenko S., Railway Signalling & Interlocking, 3rd Edition, Eurailpress, 2020

2) Railway Signalling and Track Plans, 2007

3) C. F. Bonett, Practical Railway Engineering, Imperial College Press, 2005

Grading policy

20% Midterm Exam

25% Homework Assignments (3)

25% Final Project & Presentation

30% Final Exam

Condition for Entering Final Exam:

All homework assignments must be submitted in time, and the weighted average of homework assignments and the midterm exam must be over 25 (over 100).

Weekly planHaftalık plan

Fall 2025 course plan2025 Güz dönemi ders planı

WeekDateSubjects to be covered
130 Sep.Introduction to the course,

Basic characteristics of railway systems.

History of signalling. Basic signalling principles.

- Time table and train order

- Token signalling

- Staff and ticket

- Block signalling
27 Oct.Introduction to RAMS Analysis for Railways

- Reliability

- Availability

- Maintainability

- Safety and Security

RAMS and Risk Analysis

- Hazard and Risk

- Verification and Validation

- Relevant Standards

- The V Model

- Risk Matrix

- FTA Analysis
314 Oct.RAMS and Risk Analysis

- Other Risk Analysis Methods

- Errors, Failures and Disturbances

- System States

- Evaluation of Safety and Safety Integrity Level (SIL)

- Development of Safe Programs



Railway operation processes

- Historical background

- Basic definitions (tracks, signals and their classifications)

- Interlocking areas

- Train movements and shunting movements

- Fixed block and moving block signalling

- Calculation of block times and headway
421 Oct.Interlocking principles

- Route and block principles

- Element dependencies

- Route protection

- Parts of a route (beginning, end, running part, flank, overlap)

- Speed restrictions

- Basic route locking functions
528 Oct.Interlocking principles

- Flank protection

- Front protection

- Overlaps

- Life Cycle of Routes

- Reversible and irreversible route locking

- Interlocking tables
64 Nov.Interlocking principles

- Automation of route operation

- Block dependencies and block protection

- Block overlaps

- Absolute and permissive block systems
711 Nov.Interlocking principles

- Managing block direction (neutral vs placed direction, tokenless block systems)

- Following protection by block systems

- Handling train movements in block systems

- Degraded mode of operation
818 Nov.MIDTERM EXAM
925 Nov.Detection systems

- Classification of detection systems

- Detection equipment

- Track Circuits

- Axle Counters
102 Dec.Movable track elements

- Simple points

- Fouling points

- Movements on switches

- Railway crossings

- Catch points, trap points and derailers

- Safety requirements

- Point machines
119 Dec.Signals

- Classification of signals

- Light signals

- Control and supervision of signals

- Signal aspects

- Signalling speed restrictions

- Shunting signals and degraded mode of operation

- Case studies
1216 Dec.Train Protection

- Cab signalling functions

- Supervision functions

- Automation of train operation

- Data transmission (systems)

- Classification of train protection systems

- Case studies

- ETCS

- ATP and braking curves
1323 Dec.Interlocking machines: mechanical, relay and electronics.

Line block systems. Remote control and operation technology.

Level Crossings. Moving block signalling and ETCS.

Hazard alert systems.
1430 Dec.PROJECT PRESENTATIONS