Lots of comments, certainly interesting reading.
Just to point out I’m certainly NOT proposing to move Shipley Bus Station/Interchange, simply to make a new interchange when buses can stop to pick up and set down passengers, certainly not somewhere to terminate them.
This might then be an additional problem, as I mentioned previously there are not a lot of current services that would serve this new station. In fact as things stand only the 676/8 towards Cottingley & the 679 towards Hirst Wood use Saltaire Road. The remaining services towards Bingley (622) & Keighley (60) operate up Kirkgate. So this interchange would really only serve the people of Cottingley, as those from Hirst Wood can get the train at Saltaire, and those coming from the east will continue to use Shipley. Unfortunately it simply doesn't stack up for any business case.
The primary purpose of my suggestion is to enable longer platforms, preferably double the length of existing. As although we could use SDO technology my personal thoughts are that this should only be used where there is no realistically other alternative such as at stations like Knaresborough on the Harrogate Line, that is situated in between a tunnel and a level crossing. I do quite like this technology however although I am a firm believer that making our overly complicated rail network more complicated creates unnecessary complications for both the operator and the customer.
I think we all agree the lines need longer units, however I'm really not sure that effectively splitting what is a busy interchange into two is the answer. I'll come on to that in more detail in a bit.
With regards to those travelling to Guiseley I would operate a new direct service to Ikley from Skipton, with it in mind that once the Skipton to Colne line reopens that this will be an extension of services from Lancashire, that from my understanding are currently proposed to terminate at Skipton.
I'm afraid this is another none starter, the single section through Baildon just about supports the 2tph between Bradford & Ilkley. Trying to shoehorn any more in will not work. This was evidenced when there was a landslip on the line between Guiseley & Apperley Junction. Northern had to cancel all Bradford services to allow the Leeds services to head to Shipley & reverse (with Baildon getting a much desired direct Leeds for a whole week!). And reducing the number of Bradford services would not be a good idea, these trains are the only direct link from Bradford to Menstion & beyond, the old 650 buses which plied this route have long since been lost.
If these brand new 331’s are still to enter service upon the Aire Valley then we will certainly need more carriages just to keep the capacity levels up never mind demand and future demand, as these new units have the 2+2 seating arrangement instead of the 3+2 of the 333’s.
It is a concern that seat numbers, at least in the interim, will be reduced. However the 331s will be displacing 321/322s, not 333s and with the longer carriages, and much wider door wells I suspect the loss of seating will be minimum. It is only when the proposed 2* 3 car 331s are introduced will 333s be displaced.
Saltaire does necessarily have to close to facilitate my proposal, as I was recently reminded that the proposed Leeds Bradford Airport parkway is to be built not that much further in comparison away from Horsforth station. My personal preference is not to have many stations close to each other and I feel that the prosed location could just as easily serve Saltaire as the current one does. In fact I think it may even be better for tourists especially Salts Mill as it would be much more fitting arriving directly in front of this Mill building instead of round the back.
The proposed LBA parkway is quite close to Horsforth it is true, but it's location is dictated by geology, and its purpose to serve something that is currently unserved & will be very different (in theory at least) in it's passenger use to Horsforth.
Solving the capacity issues along the Aire & Wharfe valleys is always going to be a challenge. It should be possible for NR to provision capacity for at least 6 car 331s at most stations, including Shipley, albeit with some engineering challenges to overcome. With hindsight stations like Apperley Bridge & Kirkstall Forge should have been built to at least this specification, although when both were proposed the 331s were not on the cards. If further capacity is needed (i.e. 8 car), then where further extensions are not possible, then SDO will be the answer. Not ideal using non-gangwayed units, but it can & is used like this elsewhere. There are also the Bradford LNER services proposed. Although they will only be every two hours, they will prove very popular with commuters (as current two LNER services at Shipley are), so that will release a small amount more capacity.
But in the long run, both the Aire & Wharfe could benefit from re-signalling (especially between Gusieley & Burley-In-Wharfedale), to allow more paths to be made available at the peaks, although with more services on the routes it may be necessary to have these call at Apperley Bridge & Kirkstall Forge. That would add a few minutes to all journeys, but would address the issue of services bunching up through Kirkstall & Armley into Leeds.