In message , at 12:03:01 on Tue,
7 Mar 2017, Mike Bristow remarked:
https://en.wikipedia.org/wiki/Parlia...xtant_.22parli
amentary.22_trains

That article lists the Woodgrange Park - Wilsden Junction service
as a parlimentrary one; I don't think it is. It's more of a peak
hours boost using the spare set, isn't it?

It uses a (short) stretch of line no other services use.

Yes, absolutly. Well, no other passenger services.

However "Using track that's not often used" isn't really the definition
of a parlimentery train, IMO. A parlimentry train is one that is
run to avoid the hassle of formal clousure procedures. That service
is a peak hours congestion buster.

It could of course be a parly that unusually runs when people need it,
rather than at the most inconvenient possible time.
--
Roland Perry