53k journeys. How many of these actually actually connect to the Circle/H&C lines? They surely have the data through Oyster, yet they fail to say how many journeys will benefit.
Over the course of a week there are an average of 53,000 off-peak journeys to or from Chesham, Amersham, Chalfont & Latimer, Chorleywood, Rickmansworth and Moor Park that will experience longer run-times (by up to 6.5 minutes) as a result of the additional stops. However, this group of passengers will benefit from the fact that their trains will become through trains to Aldgate rather than terminating at Baker Street, reducing the need to interchange for those travelling to destinations or connections in the City.
How much of this supposed improvement will be swallowed by a reduced frequency of trains to Watford and Uxbridge?
Furthermore, an average of 141,000 off-peak journeys to or from Northwood, Northwood Hills, Pinner, North Harrow, Northwick Park and Preston Road on the ‘local lines’ will benefit from reduced platform wait times due to the increase in the frequency of stopping trains
Does that apply to radial routes out of London that operate to a strict timetable, or to congested central London lines that have no set timetable? Let's guess.
These changes to the scheduled service represent an overall benefit, particularly given that customers consistently place a higher value on reductions in platform wait time and interchanging when compared with on-train time.