Section 34(2) in The Bangalore Metro Railway (Opening of Public Carriage for Passengers) Rules, 2011
(2)The isolation referred to in sub-rule (1) may be accomplished by-(a)connection to a long line or siding; or(b)provision of a short dead end siding; or(c)provision of trap; or(d)any other authorised means:Provided that when a trap is provided, the trap switch shall be located with the heel of the switch in rear of the fouling mark and preferably on the straight and the switch be in the rail away from the line to be protected.
