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Before choosing course

This course provides insight into the design of secure systems for use in safety-critical applications, the reliability can be achieved, the use of the resources applied, and how structures adapted to current standards. Most of the examples in the course are drawn from applications in the railway signaling system.

Course offering missing for current semester as well as for previous and coming semesters
* Retrieved from Course syllabus AH2030 (Spring 2011–)

Content and learning outcomes

Course contents

  • Definition and terminologies
  • Traditional solutions and Fail-safe technology
  • Reliability Calculations, Structural, MTBF, availability
  • Applications of the Markov Process
  • Different methods of analysis: Danger origin analysis, risk analysis, Fault trees (FTA), Fault effect (FMECA)
  • Different methods of construction for the safety of hard and software and transmission, and monitoring of claims against the manufacture, installation, operation and maintenance
  • Applicable standards preferably within the railway reliability area
  • Introduction of development processes, including verification and validation and approvals

Intended learning outcomes

The student will after the course be able to:

  • Understanding reliability and safety in the development process
  • Calculate the MTBF, reliability/availability/security in a reliability system
  • Describe/explain the relevant terms, methods and demands of the system life cycle
  • Derive the necessary formulas for the reliability analysis

Course Disposition

The course consists totally of twelve days of lectures by the basic knowledge needed to understand the subject. This is supplemented with exercises, to provide applications on the subject. Examination is a written exam. The course can partly be read at a distance.

Literature and preparations

Specific prerequisites

At least 180 credit academic studies and documented proficiency in Swedish B and English A or equivalent.

Special qualification:

AH2029 Järnvägssignalteknik-Signalsystem.

Recommended prerequisites

Knowledge in mathematical statistics and transform theory is recommended.


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Course compendium

Examination and completion

If the course is discontinued, students may request to be examined during the following two academic years.

Grading scale

A, B, C, D, E, FX, F


  • TEN1 - Examination, 7,5 hp, betygsskala: A, B, C, D, E, FX, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

TEN1 - Examination, 7,5 credits, grade scale: A, B, C, D, E, FX, F

Other requirements for final grade

A mandatory written examination equivalent to 7,5 cr with grading scale A-F.

Opportunity to complete the requirements via supplementary examination

No information inserted

Opportunity to raise an approved grade via renewed examination

No information inserted


Profile picture Oskar Fröidh

Ethical approach

  • All members of a group are responsible for the group's work.
  • In any assessment, every student shall honestly disclose any help received and sources used.
  • In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.

Further information

Course web

Further information about the course can be found on the Course web at the link below. Information on the Course web will later be moved to this site.

Course web AH2030

Offered by

ABE/Transport Planning

Main field of study

Built Environment

Education cycle

Second cycle

Add-on studies

AH202X Master Degree Project in Railway Operation


Anders Lindahl (