Here are the populations and old CPR mileposts of the significant communities between Smiths Falls and Peterborough (I used
this old schedule to calculate the mileposts).
Town | Population (2016) | Milepost |
Smiths Falls* | 8,780 | 0 |
Perth | 5,930 | 11.6 |
Central Frontenac (Sharbot Lake)** | 4,373 | 36.8 |
Addington Highlands (Kaladar)** | 2,323 | 61.7 |
Tweed | 6,044 | 77.9 |
Havelock | 4,530 | 109.1 |
Peterborough | 84,230 | 133.4 |
* Based on the location of the old Smiths Falls station. The new station is about 1km (0.6 miles) north of the old one.
** I couldn't get recent populations for Sharbot Lake and Kaladar, so I had to use the populations of Central Frontenac and Addington Highlands instead.
As
@crs1026 said, Perth and Tweed have similar populations and they aren't that much smaller than Smiths Falls. Other than being the closest town to the half way point (within 5 miles), I really don't see any value in a stop at Kaladar. If a halfway stop is needed, Tweed is only 11.2 miles from the halfway point and it has almost triple Addington Highlands' population.
As for Perth, having some trains stop there instead of Smiths Falls might be doable. They can't really add additional occasional stops since the position of the passing tracks will be designed to have the trains meet at exactly the same time and a small delay to one train would be cascaded to all of the oncoming trains and the delays to those trains will be cascaded to the trains behind the initially delayed train, and so on. Moving a stop 11.6 miles up the track shouldn't have much effect, especially since they will likely effectively have double track between Smiths Falls and Perth, assuming they can use CP's track occasionally.
Alternatively HFR trains could skip Smiths Falls altogether (it will still be served by the Kingston regional trains) and have HFR trains stop in Perth instead.
As for Sharbot Lake, I think it was less of a political decision and more that it (in combination with Tweed, divide the route in thirds nicely. As
@crs1026 said, while its population is small, it is cottage country and could get some tourist use. For reasons stated above, it could be difficult to add or remove seasonally.
Once we eventually get to the point where we have also built HSR, the HFR route could continue to provide regional service, not only to serve these communities, but to provide a more affordable intercity option for those who don't want to pay for an HSR ticket. Keeping that in mind when building HFR isn't a bad thing.