Ø
This
is provided at places where station section is on a raising and block section
is on falling gradient.
Ø This is to protect
vehicles escaping onto the main line and enter the Block section.
Ø The length of this
Slip siding is to hold a few vehicles.
Ø This should not be
used for shunting purposes and stabling purposes.
Ø The normal setting
of points is for slip siding.
Ø This is interlocked
with the LSS of the station.
Catch Siding
Ø When the Block
section is in rising gradient and station section is in falling gradient this
is provided.
Ø This takes off at
the end of Block section and beginning of Station section.
Ø This is to protect
the station section from the escaping vehicles of the adjacent block section or
block station.
Ø The length of the
catch siding is the length of the longest goods train of the section.
Ø This should not be
used for shunting and stabling purposes.
Ø The normal setting
of the points is for the catch siding and interlocked with the Home signal.
Ø Where catch siding
is provided the train must come to a dead stop at the foot of the signal, only
then points must be changed and signals taken off.