Page 6 - IRSEM_Main Book

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GOVERNMENT OF INDIA
rrafu qn6 MINISTRY OF RAILWAYS
(RAILWAY BOARD)
Ffa qrll.d RAIL BHAVAN, NEW DELHI.I l OOO1

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PREFACE

After First issue of signal Engineering Manual in 1955, and later revision in 1988
& 2001, several technological advancements have taken place in Railway Signalling.
lndian Railways have been gradually inducting modern technologies such as Electronic
lnterlocking, Dataloggers, BPAC, MSDAC, TMS/CTC & ATP systems' While the
Mechanical signaling systems shall be phased out in the next few years, the migration
towards Predictive/Condition Based Monitoring using loT, Artificial lntelligence and
cloud Analytics, shall significantly enhance reliability of the Signalling assets'

The revision of signal Engineering Manual is thus a much needed necessity in
successful adaptation of modern signalling systems on lndian Railways. lam glad that
along with revision, a number of new topics on above modern Technologies have also
been added. lt is commendable that the whole exercise of revision, was done through

online tools & video conferences.

ln this manual, Most of the Technical clauses can be complied by all. certain
clauses may have to be complied over a period of time. All are expected to keep
principles of Uniformity, Reliability, Availability, Maintainability & safety in mind at all
iimes. Let us keep Railways Motto of Safety, Security & Punctuality always foremost in

mind.

I compliment the Members of signal Revision committee and all PCSTES for
their sincere efforts and hard work in carrying out the meticulous revision of Signal

Engineering Manual, 2020 edition.

(Rajeev rma)
Additional Member (Signal)
Railway Board

New Delhi.
Date : 25th September, 2020