19.SOD

 For Existing Works-

 Horizontal Distance of any fixed structure (upto 305 mm height), from centre of track - 1675 mm

From 305 mm to 4520 mm - 2135 mm.

Max height of any  signalling gear between track lines - 64 mm.

SOD of the Signal -

SOD of a signal is measured from outermost part of the Signal.Outermost point is generally ladder.

For new work- 

Rail level to 305 mm above rail level -1905 mm.

From 305 mm to 1065 mm - 2360 mm.( Distance of Signal Post from centre line of track)

From 1065 mm to 3735 mm - 2360 mm.

If implantation is correct,it should be written in Black colour with white background.

If implantation is less,it should be written in Red colour with white background. As per new SEM,if implantation is less,signal should be painted with alternate Red and White stripes at Loco pilot's eye level (3.65m),showing an arrow towads infringing track.

Signal post on platform- 4720 mm

Existing yard-

gradient is steeper than 1 in 400 and upto and upto 1 in 100 -  Permission of GM through PCSO  is required 

If gradient is steeper than 1 in 100 - Railway Board through CRS.

New yards or New Work - 

In Station Section, Maximum Gradient recommended is 1 in 1200.

For Single line, Station yard will be extended to a distance of 50 m beyond outermost points at either end of the station.( For purchase of maximum gradient Permitted).

In block section, Steeper than 1 in 400 and upto 1 in 260 -CRS

If steeper than 1 in 260 - Approval of Rly board required 

For the purpose of Maximum gradient permitted in Station yard as per SOD, on a single line,a Station yard will be taken to extend to a distance of 50 m beyond outermost points at either end of the station.

1600 mm - Horizontal Distance of point machine 

2500 mm - Normal implementation of OHE mast