Differences Between Shunting Limit Board and Block Section Limit Board (G.R. 3.32)

S.No.SLB (Shunting Limit Board)BSLB (Block Section Limit Board)
1.It is provided on single line ‗B‘ class station.It is provided on double line ‗B‘ class station.
2.It is provided both in TAS and MAS.It is provided on MAS only.
3.SLB is provided where advanced starter is not provided.It shall be provided where outermost points are trailing or where there are no points.
4.It shall be placed at a distance of 180 m in advance of the FSS.It shall be placed at a distance of 180 m in advance of the FSS.
5.This board bears the words ‗Shunting Limit‘.This board bears the words ‗Block Section Limit‘.

Common Points:

  • Both are painted yellow with black cross painted above.

  • Both are facing towards station.

  • Both demarcate station section and block section.

  • Both are fitted with lamp during night time showing white light in both directions.

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