daodao
Established Member
How come the WCML is full between Oxenholme and Carstairs with only 3 passenger tph?Other than the WCML being full and/or needing power supply upgrades to make use of the last remaining drops of capacity ?
How come the WCML is full between Oxenholme and Carstairs with only 3 passenger tph?Other than the WCML being full and/or needing power supply upgrades to make use of the last remaining drops of capacity ?
If there is insufficient capacity, any remaining diesel stopping passenger services on the S&C line itself could be curtailed to run between Carlisle and Skipton only.That doesn't help capacity between Leeds, Armley Jn and Shipley.
for example by doing those power supply upgrades and incentivizing the freight operators to use electric haulage.
How come the WCML is full between Oxenholme and Carstairs with only 3 passenger tph?
If there is insufficient capacity, any remaining diesel stopping passenger services on the S&C line itself could be curtailed to run between Carlisle and Skipton only.
I honestly don't know if electrification of the S&C would make an enormous benefit either, it would likely need the InterCity West Coast franchise to serve Leeds on some sort of Anglo-Scottish service (Leeds-Settle-Carlisle-Glasgow) to ensure there's the level of route knowledge needed for the line to work as a proper diversionary route.
I don't see what a Leeds to Glasgow via the S&C service brings to the party though, given there's already a good XC Leeds to Glasgow service which manages to also serve York, Durham, Newcastle, Berwick, Edinburgh and Motherwell.
Because, as I've posted several times on here already, there are also several slower freight trains, and the mix of speeds as the passengers catch up the freights is what eats up the capacity. There comes a point when loops don't help much because stopping and restarting the train slows it down even more.How come the WCML is full between Oxenholme and Carstairs with only 3 passenger tph?
Lancaster can be pretty busy.
....and bang goes the tourist market for the S&C.
I think it's standard Strawman argument, we must man the barricades and whip up some "resistance" (even if nothing is under threat - look at how hard it is to close a tiny section of unused line at Newhaven or Weymouth) - but I guess you need to try to energise your supporters by pretending that something sacred is being threatened - modern political discourse. Depressing!
Post pandemic when the country is skint there will be much interest in how much sparsely used lines are subsidised. If it must be kept have it as a slow goods line only to serve quarries and non revenue earning trains.
The tourist market from Leeds. Most of the rest of it shows up on coaches at Settle (or DalesRail services from Lancashire), and people know the line as the Settle-Carlisle, the Leeds bit is arbitrary.
Amazing. In the early 1960s there were far less than that S of Preston on the WCML. I remember longish periods of no trains at Skew Bridge during daytime - except summer Saturdays and bank holidays.
Some longer loops have been laid already or are planned, but as I posted above they become less useful because stopping and re-starting it make the freight train slower still, so more likely it will have to go into another loop later in its journey. This is even worse for loops on ascending gradients like Shap. On much of the northern WCML it would be very difficult to make what are effectively four-track sections due to the nature of the countryside and much of it being protected. If contemplating construction on that scale it's probably better to start considering high speed bypasses of the slower parts of the route, which will immediately achieve a small time saving for the HS-compatible trains and might ultimately be joined into longer sections with bigger savings. Freight and stopping passenger can remain on the old route to serve any intermediate stations thus bypassed.Would the straightforwards solution not be making some longer passing loops and (as is done in France on many lines - See voie banalisée and IPCS) offering the opportunity to redirect slower trains onto the 'wrong' line for overtaking?
Some longer loops have been laid already or are planned, but as I posted above they become less useful because stopping and re-starting it make the freight train slower still, so more likely it will have to go into another loop later in its journey. This is even worse for loops on ascending gradients like Shap. On much of the northern WCML it would be very difficult to make what are effectively four-track sections due to the nature of the countryside and much of it being protected. If contemplating construction on that scale it's probably better to start considering high speed bypasses of the slower parts of the route, which will immediately achieve a small time saving for the HS-compatible trains and might ultimately be joined into longer sections with bigger savings. Freight and stopping passenger can remain on the old route to serve any intermediate stations thus bypassed.
The length of track needed for a train running at 110mph to overtake one running at 75mph, including creating enough spacing to avoid either train seeing adverse signals, is at least seven miles. If applied to a simple double track this would need a gap of well over 10min in the trains approaching in the opposite direction, occurring at exactly the right time. Timetabling this would be very complex and introducing that sort of dependency between trains is liable to make the timetable very fragile, with delays in one direction knocking on to the other one like they do on a single line. In France (and certainly in North America where this is also common) the traffic density is lower and I would guess a lot of the "wrong direction" running is down to engineering closures rather than overtaking.
Very eloquently put.
I agree that the (very) long term solution for Shap / Beattock will be a "Gotthard Base Tunnel"-style cutoff for the most severely graded sections. Many, many years away, of course.
That and lengthening the existing trains. 11 car Pendolinos are of course pretty much maxed out already, but the 9-cars could be used elsewhere, and 5-car 397s are a waste of capacity if the line is getting full - they should in that case at least portion work the Liverpools with the Manchesters, particularly if both are to be hourly long-term.
Splitting units is a PITA
Worked well with WMT if I recall....Pretty much every other European country respectfully disagrees. It's an excellent way of serving destinations that don't justify a full length train. If a line is congested it should not host trains that are not full-length.
Worked well with WMT if I recall....
There are many reasons why the WMT timetable was a disaster, and it wasn't only splitting and joining. There are ways it could have been made reliable, but they wouldn't have achieved WMT's aim which was clearly to put those through services on without using substantial extra crew or units.
If, for example, they had ensured that the diagrams were self-contained, it would have worked better. By that I mean that a unit and crew going from Rugeley to Euston as part of a train from Liverpool, say, would, that day, only ever work between Rugeley and London. If that was the case, if you got to the join point and one unit hadn't made it, you could terminate that unit at New St and keep it there on one of the centre roads until it was due back to Rugeley, then the overall knock-on wouldn't happen, what would happen is that the passengers coming from Rugeley would be delayed 20 minutes to board the next service, and the service would be busy due to being short-formed (though if you kept hot spares at Northampton it could be re-lengthened for the most busy bit) as well as people from Euston having to change (but with no delay) at New St on the way back.
Same with crews - a crew that did the Rugeley-Brum leg, or Liverpool-Brum, or Euston-Tring, or whatever, would do that all day, so again no knock-on.
There was also an issue with them not providing adequate layover at key points.
Yes, if you have a bad timetable splitting and joining will make it worse, but saying that splitting and joining was the cause of the WMT problems is oversimplistic. My view would be that inadequate layovers on very long routes was the primary cause. If they'd all had half an hour at Euston, 20 minutes at New St (as, at least pre-COVID, was going to actually happen) and half an hour at Liverpool/Rugeley, I reckon it would have worked fine.
The problem wasn't doing what they did - it was doing it on the cheap. And TPE would be no different.
people say the S&C is slow - too slow for diversions.
It was laid out as a main line, so should support higher speeds.
70 or even 80 would help. For diversions and the leeds-carlisle service.
or is that another thread?
people say the S&C is slow - too slow for diversions.
It was laid out as a main line, so should support higher speeds.
70 or even 80 would help. For diversions and the leeds-carlisle service.
or is that another thread?
As I mentioned above, the S&C track is good for 90mph according to NR but is still limited to 60mph as the higher linespeed would lead to higher track access charges. The main issue though is the signalling. The resignalling a few years back to include new IB sections is more than fine for the current service levels (especially now that freight is sparse compared to when it was done) but would not be enough for full scale diversions as there are far more local services than when diversions happened previously (1 train every 90mins on average compared to 1 train every 2 hours on average). The S&C service should not be sacrificed for non stop diversions from another route.people say the S&C is slow - too slow for diversions.
It was laid out as a main line, so should support higher speeds.
70 or even 80 would help. For diversions and the leeds-carlisle service.
or is that another thread?
people say the S&C is slow - too slow for diversions.
It was laid out as a main line, so should support higher speeds.
70 or even 80 would help. For diversions and the leeds-carlisle service.
or is that another thread?
Pretty much every other European country respectfully disagrees. It's an excellent way of serving destinations that don't justify a full length train. If a line is congested it should not host trains that are not full-length.
Laid out as a mainline in the 1870s - just because it was laid out as that, doesn't mean it was high speed particularly by today's standards.
Both the ECML and WCML were laid out as mainlines, both have needed significant re-engineering to allow for the 100mph + running of today - curves needed their profiles changing, junctions removing / remodelling etc etc. Even now in 2020 the southern part of the Midland Mainline is slower because of the routes the Midland railway selected in the 1800s - curves such as those at Market Harborough and Wellingborough for example.
Just about the only Victorian line which was laid out as a mainline and was suitable for higher speeds - though other engineering works were done on it - was the GWR mainline - because Brunel had the foresight to build a line as straight as possible.