Nym
Established Member
Pathing via Bolton avoids a very slow turnout 2 track junction (it's four track beyond it but not at it) apposed to via Bolton where, when Lostock to Wigan is electrified, slow services can get out of the way pretty sharpish and the Scottish services can be flighted directly in front of a semi fast or slow service via Chorley and schduled to catch up with a slow 'by Bolton'.
There is also the possibility of re-instating platform loops and/or fast lines at Bolton so a fast / semi fast can overtake. That boat long since sailed and would require a much more 'on line' upgrade than putting "Platform 5" in at Bolton and some extra S&C on the already existing trackbed to give two northbound and two southbound platforms, potentially with keeping the bay at platform 2 and possibly one between Platform 4 and "5".
There is also quite the possibility of additional tracks at or near Chorley and between Bolton and Lostock to give four tracking in this area.
There is also the possibility of re-instating platform loops and/or fast lines at Bolton so a fast / semi fast can overtake. That boat long since sailed and would require a much more 'on line' upgrade than putting "Platform 5" in at Bolton and some extra S&C on the already existing trackbed to give two northbound and two southbound platforms, potentially with keeping the bay at platform 2 and possibly one between Platform 4 and "5".
There is also quite the possibility of additional tracks at or near Chorley and between Bolton and Lostock to give four tracking in this area.