Sirisha Bai

Sirisha Bai Govardhan Rao

Educational background

Coming to my educational background, she has received her master’s degree in Computer Science from Mälardalen University, Västerås. She has received her bachelor’s degree in Information Technology from Jawaharlal Nehru Technological University (JNTU), India.

Work Experience

She recently started working at ALSTOM, as a part of Industrial Ph.D. in Functional Safety. Previously, she have done Internships at ABB and RemaSawco AB as a Software Developer. 

Research Topic

A Systematic Investigation on Common Cause Failures of Electro-dynamic braking system

Research Abstract

Common Cause Failures (CCFs) have the potential to make safety-related systems fail. Hence, the safety-critical industries identify and quantify the probability of CCFs. However, most industries rely on the models which depend on the engineering judgment for their CCF evaluations. These are likely to produce conservative results. Therefore, industries need to emphasize their CCF estimations.

This research focuses on analyzing the CCFs of High-integrity Electro-dynamic braking of railway propulsion systems to re-evaluate the assumptions made in the industry. The aim is to study the CCF methodology adopted in the industry and investigate ways to reduce the probability of CCFs by examining the software/hardware dependency factors of control systems, which consecutively benefit the industry by reducing the safety requirements and associated costs.

Other Research Interests

Her research interests are in functional safety, hazard analysis techniques, safety case documentation, and safety standards. At present, her research in the railway industry mainly focuses on High-Integrity Electro-dynamic braking system, common cause failures and the IEC 61508 standard.


Master thesis focuses on the “Argumentation languages used in the context of Safety Case Development” that has been published in DivaPortal. 

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