The smallest place in the NE that's served by Transpennine is probably Thirsk, with 1 tph, from Middlesbrough. That has a population of around 8000.
Other places along that route are considerably bigger:
Durham - 85,000
Chester-Le-Street - 22,000
Northallerton - 15,000
Darlington - 106,000
(approx. 2011 Census Data).
Especially in the cases of Darlington (which is more that half the population of York, where you propose to stop) and Durham, there's very little scope in reducing services to these areas.
It's interesting to compare the populations with the rail-usage figures (though these are of course only the overall figures and not those for specific point-to-point journeys):
Leeds 30,482,057
Manchester Piccadilly 27,320,505
Liverpool Lime Street 15,238,008
York 9,414,090
Newcastle 8,435,090
Manchester Oxford Road 8,350,672
Manchester Victoria 7,662,092
Huddersfield 5,235,101
Manchester Airport 3,336,859
Durham 2,420,065
Darlington 2,637,987
Dewsbury 1,669,758
Warrington Central 2,038,772
Stalybridge 1,213,003
Northallerton 640,843
Birchwood 583,454
Widnes 416,676
East Garforth 222,918
Chester-le-Street 199,131
Thirsk 194,394
These are the figures for in and out and interchange from the most recently published statistics.
--- old post above --- --- new post below ---
Traditionally, the fastest trains have always been first on the timetabling graph, with slower services being built in around them.
Is that still the case? I seem to remember that in the recent (2012? 2011?) revision of the ECML timetable one of the big problems was precisely that it was not possible just to place London-Edinburgh on the graph first and then sort everything around that because of the franchise agreements with other TOCs.
We don't see the problem at its worst in this country. Look to Germany, where the regional contracts for local passenger services in some areas now make it well-nigh impossible to get decent inter-city services. For quite a number of years past there has been a wish for a genuine fast service between Cologne and Hamburg, but pathing has proved quite impossible and the less-than-optimal fast services attempted, like the "Metropolitan", have simply failed to generate enough traffic.