Speed of trains.
Ø
Every
train shall run on each section of the railway within the speed limits
sanctioned for that section by approved special instructions i.e. no train
shall exceed the maximum permissible speed of the section.
Ø
The
LP shall regulate and control the running of the train according to the WTT.
Maximum Permissible Speed
Ø This is prescribed
by CRS for each section and Loco separately.
Ø Fixed on the basis
of -
§ Strength of track
§ Type of Engine
§ Gradient in the
section
Ø Indicated in WTT at
the relevant page for each section.
Ø LP shall not exceed
this speed even if he is running late.
Ø On the basis of this
speed, minimum permissible running time is calculated.
Ø If the MPS of the
Loco & MPS of the section are different then whichever is lower is the MPS.
Booked Speed
Ø Fixed by COM (Chief
Operation Manager) according to the importance of trains.
Ø It is 8 to12% less than maximum permissible
speed.
Ø Mentioned in the WTT
at the top of the timings of each train.
Ø On the basis of this
inter station running time is calculated.
Ø All Mail/Exp &
passenger trains are to run at MPS subject to speed restrictions if any.
Minimum permissible
running time
Ø This is the running
time between stations when running at MPS prescribed.
Ø This is calculated
taking into account the running time, Time for acceleration/deceleration,
gradients, load of the train stoppage platform time loop line or main line and
includes time loss on account of Permanent Speed Restrictions.
Ø The difference
between this time and the booked time of the section gives the time made up by
the LP at the block section.
Speed over facing points
Ø Speed over facing
points will be shown in WTT.
Ø It depends on the
standard of interlocking.
Ø Speed over facing
points during signal failure is 15 kmph
Ø Speed over all
crossovers and turnouts are 15 kmph or higher speed permitted under approved
special instructions.
Ø Speed over high
speed turnouts (thick web switches) is 30 kmph.
Ø Non–interlocked
station on Main line and loop line the speed is 15 kmph.
