* Broughton - if suitably placed and with access to the M25, would make an excellent parkway station for Preston, as well as serving a reasonably sized community.
* Brock - probably too rural
* Hollins Lane - definitely too rural
* Galgate - would work reasonably well for Galgate village and a parkway for the area to the South, although might be semi-redundant if you have a station at Bailrigg too.
* Bailrigg (University Campus) - yes, definitely
And I would add to that list:
Possibly Garstang, which is easily big enough to justify a station, but the problem is the rail line doesn't quite go near enough to the town.
Blackpool Road Preston to provide rail access to a very densely populated residential area.
The other thing that is missing from this discussion is that Lancaster-Preston is a decent and well used commuter route that is currently very badly served: Lots of long-distance trains that are not designed for commuters and add up to lots of services but at wildly irregular intervals. If you built new stations along the route and had them served by something like a half-hourly Preston-Morecambe, then I'm pretty sure that would be well used, attracting both Morecambe/Lancaster-Preston commuters and people using the new stations. I'd also have the Windermere and Barrow trains, and possibly the Manchester-Scotland ones also stop at Bailrigg.
Unfortunately the elephant in the room is that none of this will be possible without 4-tracking the route because of the issue of delaying the trains to Scotland, which would make it a very expensive project.
On the other hand, as far as I'm aware there aren't that many barriers (other than financial) to doing that. For most of the route there is enough space around the tracks that you could 4-track without really needing to demolish much. The only real problem is going to be the Galgate area.
I would tend to agree with DynamicSpirit's bulleted list, including thinking that Brock and Hollins Lane are too rural. I'd disagree with putting Blackpool Road Preston on the WCML, but consider a Blackpool Road Station on the line to Blackpool (which is only 900 metres to the west at this point). Maybe a station on the WCML a bit further north in Preston (eg Fulwood or Lightfoot Green) instead.
My UK home is in Broughton and backs onto the WCML at the bottom of the garden. All my life I have dreamed of a station at Broughton but even with the new housing in Sandygate Lane area I can’t see where you would put the station nor any financial justification.
There is a water tower and associated building in Broughton. Just looking on Google Earth, there is temporary fencing around it. Is this still in use? If not, and if this building could be demolished, it would be a prime spot for a station, especially since it already has a footbridge over the railway. This footbridge would lower the cost compared to a new one, even if it needed a bit of TLC.
I would also add a station at Scotforth, on the southern outskirts of Lancaster. It looks to me like there's enough housing round there to give a service some use.
To put it in context, 4 tracking (I refuse to use the term “quad tracking”, dammit I just did) from somewhere around Broughton to somewhere around Bailrigg, and building say three stations, is going to cost a minimum of a billion pounds.
Believe that's Oxheys Goods loops. Would need a bit of work to upgrade it for passenger service, the turnout speeds are horrendous. It's also not 4-tracking, as it's just a loop, so passenger trains if being overtaken would need to dwell for a minimum of 6 minutes, and would likely be delaying the train behind while trotting into the loop. Oh, and you'd need to make sure freight wasn't using the loop at the same time as the passenger, which if it's a half-hourly service may be a problem.
4-tracking through to Lancaster involves 10 or so bridge rebuilds, substantial land take, and demolition. Similarly if you tried to extend southwards you'd have to take houses down in Galgate. That's a lot of money for a student hopper. The reasonable limit of a dynamic loop (Galgate Salford Road to Cinder/Uggle Lane overbridge) is about 3.5km or 2 miles, which would allow margins to be reduced slightly and turnout speeds of 60mph or so, but still it's a hell of a lot of money for extraordinarily marginal benefit.
Building Bailrigg on the 2-track and timing the stopper to recess at Lancaster would be by far the more sensible option.
Bailrigg has a good chance at some point with the housing expansion planned. Garstang would need to double in size for a station to be justified. However Loops would be a bad idea, because it'll slow down the passenger service and muck up the freight holding points.
Either fully 4-track (but that requires taking out houses in the villages between) or have freight loops away from stations and recess the stopper at Lancaster and Preston.
I agree that 4-tracking the whole lot is going to be prohibitively expensive. I also agree that a loop for each station, or no loop at all, will potentially cause massive disruption to the existing services. If this is going to happen, it's going to have to be (what NR are currently calling) a Minimum Viable Product.
So in that vein I would suggest 4-tracking from Scotforth, just south of Ashford Road to Galgate, just north of the bridge over Salford Road. This loop would contain stations at Scotforth, Bailrigg (for Lancaster Uni), and Galgate.
By my count, that reduces the bridge count to five:
- Overbridge at Leach House Lane
- Overbridge at Five Ashes Lane
- Overbridge at Burrow Road
- Underbridge at Stream (approx 300m north of Burrow Road)
- Overbridge at Uggle Lane
(Note: I may have missed some bridges there. If I have, then tough!)
Between those three stations, you're not going to need to have trains waiting too much at stations to allow faster trains to pass.
There's also an argument about how close these stations are together. Including Lancaster station, these are all evenly spaced at about 2km (give or take). Bearing in mind that this line is electrified, I don't think that's ridiculous.
Then there's the issue of minimising the cost of the stations themselves. The three stations mentioned above are all near road bridges, so footbridges over the railway wouldn't be needed. I wouldn't even want to put in big car parks for these stations, if I could help it. I think they're all walkable from their respective catchment areas. I will suggest a pedestrian crossing for Lancaster Uni, but this would be traffic signals rather than a bridge.
Short of putting in a Stourbridge Town - type shuttle or a spur to its' own terminus, I think Garstang is too far away from the line to be useful to passengers. I would therefore omit that from the scheme if I were doing it.
Further south, I would suggest a second loop to taken in stations at Broughton (either near that water tower, or to the south of the village) and possibly Fullwood / Lightfoot Green. This has the following bridges:
- Overbridge next to Water tower at Broughton
- Pipe bridge over railway at Broughton
- Overbridge for Unnamed road just south of Broughton
- Underbridge at Blundel Brook
- Pipe Bridge just north of M55
- Overbridge for M55
- Overbridge for Lightfoot Lane
- Underbridge at Sharoe Brook
This is a lot of bridges, but it looks to me (again, looking at Google Earth) like all of these are already wide enough for 4-tracks anyway. I have to admit I'm not sure on this, so my suggestion for a second loop would be contingent on there being no work required to these 8 bridges. If the second loop couldn't be done easily/cheaply, then my suggestion for those stations is contingent on them not causing too much interference with existing services.