29-09-2010, 05:03 PM
Dear Peter and Zaphod,
Thank you for your reply.
I was trying to find schemes in the Study Pack with this symbol but could not. I did find an actual picture of a wide to gauge trap point at Clapham junction but what was shown on the schematic did not use the Network Rail symbol.
I suppose it is when site constraints do not allow trapping into the cess, some trapping is better than no trapping at all. Incidentally the example shown at Clapham Junction is between two running lines. From the picture, the site is tight. In the IRSE CD look under Module 2, Power Point, Points for the picture.
Cheers
Alex
Thank you for your reply.
I was trying to find schemes in the Study Pack with this symbol but could not. I did find an actual picture of a wide to gauge trap point at Clapham junction but what was shown on the schematic did not use the Network Rail symbol.
I suppose it is when site constraints do not allow trapping into the cess, some trapping is better than no trapping at all. Incidentally the example shown at Clapham Junction is between two running lines. From the picture, the site is tight. In the IRSE CD look under Module 2, Power Point, Points for the picture.
Cheers
Alex