Software Safety Assurance Process for Railway Platform Software

Author

Patra, S.

Author_Institution

Silver Software, Malmesbury

fYear

2007

fDate

22-24 Oct. 2007

Firstpage

72

Lastpage

77

Abstract

The SIL 4 railway platform software will provide common support to the different applications software like automatic train protection, automatic train operation and Interlock software. The safety assurance process is important for SIL 4 platform software. This paper presents the safety process that will ensure that the software complies with CENELEC EN 50128 standard. Typical analysis techniques to be applied during each phase of the development of the railway platform software are shown. The implementation of this plan will ensure that the software safety requirements are verified and demonstrated as having been met in support of the application for approval of the Software Safety Assessment (SSA) Report by the ISA (Independent Safety Assessor) approval body.

Keywords

program verification; railway engineering; railway safety; software standards; CENELEC EN 50128 [5] standard; ISA; SIL 4; automatic train operation; automatic train protection; interlock software; railway platform software; software safety assessment report; software safety assurance process;

fLanguage

English

Publisher

iet

Conference_Titel

System Safety, 2007 2nd Institution of Engineering and Technology International Conference on

Conference_Location

London

ISSN

0537-9989

Print_ISBN

978-0-86341-863-1

Type

conf

Filename

4399912