Lanc: All LDPE and Inter-Reigonal is going to be sent via Chat Moss, with the possible exception of Liverpool - Norwich.
I do agree that the CLC route should be knitted, but if it is, it will primeraly be for the benifit of the stoppers allong the route, so that 3 or 4tph all stations can be provided as metro for the line, as is needed for the growth. Too many passengers get on and off at every intermediate station to have anything else make sense for the route. Where as the chat moss route has a lot less intermediate stations, but yes, the CLC should be wired.
The problem would be where to terminate such a high frequency of CLC stoppers, all the more reason for four more platforms over fairfeild st, or some central sidings for services to turn around. ie. Pull into pt. 14, pull out into a loop between the two slow lines, driver swaps ends, pull back into 15 for the next service, alternativly, simply do a super quick turnaround on 14 or 15, but if the platforms have a chance at 6 over Fairfeild St, go for it, some West Facing bays at Piccadilly would be handy. 13/14 for Southbound through traffic, 15/16 for terminators from Oxford Road (not needing to cross the main flow and then 17/18 for westbound... Too much?
Could be somthing that can be added later after 15/16 is completed anyway. Would be handy for terminating stuff from Liverpool, and the Chat Moss (possibly). although a properly configued set of through services would work aswell, eg. Everything from Crewe continues to Liverpool via the CLC. Crossing the flow at Oxford Road is a PITA for pathing. But it is also do-able, platform 6 coming back would help with that.
Alternativly, if you want somthing pushing 6tph over the CLC, it will proberbly need Central re-opening.
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I agree with you, but the trouble is that the two "fast" services over this line wouldn't be replaced by EMUs (only the half hourly "stopper", mainly Pacers)
Like I said, Liverpool - Scarbrough will be going via Victoria and the Chat Moss route, and Norwich - Liverpool might be, it's not yet decided.
The idea to maximise paths at Piccadilly is to make it so nothing crosses the lines, anywhere.
So the options for the CLC are extending diesels through piccadilly, or terminating them at OR, and the same with leccys if it gets kinited