... topic: 2174 old map posted: 9 Mar 2013 13:50 from: Trevor Walling Hello, Could anyone identify what types of crossings are shown in this diagram.I am unsure if they are single or double slips or if one is just a plain diamond? Attachment: attach_1571_2174_crossing.png 333 posted: 9 Mar 2013 13:53 from: Raymond I'd say they were both single slips. Regards Raymond posted: 9 Mar 2013 14:03 from: Martin Wynne Hi Trevor, They are both single slips. The marks across between the rails indicate the position of the switch toes (blade tips). Note that the single slip roads form a trailing crossover for up and down running -- the most common arrangement. If they were double slips, the other slip road in each case would require a facing-point lock. regards, Martin. posted: 9 Mar 2013 14:15 from: Trevor Walling Hello, Thanks for the quick reply chaps.They are on up and down lines respectively which would explain the slips to different sides.I just need to convert ...