Last Long Sleeper Location is currently not in use in the S&C Library that Network Rail have provided in the UK. I can see why they have chosen not to use it due to the variation in LLB/LLS placement as a result of bending in similar/contraflexure, as well as the differing manufacturers drawings, but I would like to know if anyone uses it with regularity or with any degree of reliability. I would like to use it to inform my vertical/horizontal design for a project in N.Ireland
I tried to use this for a custom turnout I have created. I worked out where the approximate placement of the LLB was, and the distance this point was from the .2 of the turnout as per the schematic in the help section of Bentley Rail Track. My issue is when I place this turnout, the LLB location comes in nowhere near the location I have specified. I have specified 12m from .2 to the LLB, but the LLS is being placed 6.808m from the .2 point.
The Turnout is on straight and level track with no applied cant
Has anyone experienced this before? Have attached some pictures for information
Would appreciate any help
Thanks
A
I would take a look at REPW2251.pdf (a Network Rail standard drawing). In this case there is not a single long sleeper, but multiple (i.e. spanning across both mainlines). So from a Rail Track standpoint, I would not use the LLS length as defined in the turnout library, but instead I would use a value of zero.
Regards,
R. W. Bradshaw