Adequate distance means the distance
sufficient to ensure safety;
Block Overlap
Ø The adequate distance to be kept free before granting line clear.
Ø This is reckoned from FSS
Ø Not less than 400 mts in TA Area.
Ø Not less than 180 mts in MA area
Ø This may be relaxed by CRS only.
Signal Overlap
Ø The adequate distance to be kept free before taking off reception
signals, This is reckoned from the outer most trailing points in S/L and from Starter
in D/L.
Ø Not less than 180 mts in TA area and Not less than 120 mts in MA area
Ø This may be reduced
by CRS only.
