Temporary single line working
on Double line {S.R.6.02 (iv)}
Ø Working of trains on
one line of D/L section due to obstruction/accident or any other reason on
adjacent line shall be introduced.
Ø Trains can be
operated by any one of following procedure
Ø By obtaining Line
clear on electric communication instruments (short duration)
Ø By the installation
of Single Line Block Instrument (Long duration)
Ø To introduce
temporary Single Line working on Double Line the SM should receive written
advice from a competent Engineering official and then consult with controller
and SM at the other end.
Ø TSL working shall be
introduced between two nearest stations where the crossover between UP and DOWN
lines is provided on either side of the obstruction.
Ø The Block
Instruments at the intermediate stations shall be kept locked in the TOL (Train
on Line) position.
Ø Any C class station
shall be temporarily closed during the entire period of TSL working. The
signals shall be kept at ON and the same can be passed under written authority
of the SM of either end (T/D 602).
Ø If the trains are
running on the right line, the LSS shall be kept at ‘ON’ and if the trains are
running on the wrong line, all departure signals shall be kept at ‘ON’.
Ø Before introduction,
the SM proposing S/L working shall issue message containing the following to
the SM at the other end.
o
Cause
of introduction of S/L working
o
The
line on which the S/L working is proposed
o
Source
of information that the said line is clear
o
Location
of obstruction
o
Speed restrictions, if any
o
Names
of intermediate C class stations closed
o
Assurance
that the trap points are set for the said line and spiked.
o
The
number and timings of the last train which arrived or left the block station
issuing the message.
Ø On receipt of
acknowledgement from the SM confirmed by PN, the TSL working is introduced and
Line Clear will be obtained on electrical speaking instruments.
Ø SM shall issue the
authority T/D 602 to GDR.
Ø A Caution order
issued for each train stating
o The line on which the train is to run.
o The Km/Posts between which the obstruction exists
o Speed restriction if any
o Assurance that trap points if any are set properly and spiked.
Ø The LP of the First Train to inform all Gatemen and gangmen on the way
about the introduction of TSL working and the line on which the trains will
run.
Ø LP shall switch on the Flasher light while running on the wrong line.
Ø The speed of the first train shall not exceed 25 kmph and subsequent
trains may run at booked speed.
Ø When train is running on right line – Except LSS, all signals may be
taken off.
Ø When the train is started on wrong line – The trains shall be piloted out
of the station on form T/511 after all facing and trailing points are secured
correctly up to the last set of points.
Ø On reaching the next station, the LP shall stop at FSS pertaining to the
right line or at LSS pertaining to the wrong line whichever comes across first.
Ø Trains running on right line may be received on signals.
Ø Trains running on wrong line SM shall arrange to pilot the train into the
station on written authority through a competent railway servant.
Ø The Engineering officials shall intimate the SMs stating that the
obstructed line is free and safe for passage of trains.
Ø SM shall inform the message to SM of station at other end and exchange
PN.
Ø SM introduces normal working, after consulting with section controller
and after the last train which entered section during TSL working cleared
section.
Ø The Block instruments shall be brought into use.
Ø The intermediate stations which have been closed shall be again brought
in to operation.
Ø An entry to be made in TSR at all stations, showing time of D/L working
suspended and time of S/L working introduced and time of normal working
resumed.
Ø LP of the first train after the resumption of normal working shall inform
all Gatemen and Gangmen on the way regarding the restoration.
Ø The TI shall scrutinize all records and submit his report to the DRM with
in 7 days of resumption of normal working.
