para 5.4.4 reads as below. This is wrong. There are currently 3 12 car west anglia services in the morning peak, the 0647, 0717 and 0747 from Cambridge arriving Liv St 0755, 0825 and 0855. It is surprising that this is wrong in the consultation paper.
Generally as regards West Anglia the paper is uninspiring in my view. 4-tracking Coppermill to Brox is aired but basically dismissed as uneconomic, and there seem to be no other proposals for major infrastructure improvements to increase capacity or line speeds other than extending platforms so all Camb and Hertford East services can run as 12 cars. Para 5.4.12 suggests 4 extra 4 car units should be procured to strengthen Hertford East and Camb peak services, which is stated as being sufficient to meet capacity requirements to end of CP6.
It is not immediately clear how much traffic they are assuming from Stansted Airport, which has been volatile in the past. But overall 4 extra 12 car in place of 8 car services with no infrastructure improvements seems very un-ambitious for such a busy and congested route.
Currently almost none of the Stansted 'express' services run at line speed Stortford - Tott Hale as they all catch stopping services, and journey times to Stansted as is well known are poor, and the service is poor value for money given the premium fares charged to the airport.
Perhaps all this will be overtaken by CrossRail 2?
There is no discussion of any infrastructure changes at Brox. Currently as I understand it Hertford East to Liv St services cannot arrive on the down side nor can departures towards Hertford East leave from the up side. The only way to terminate an up Hertford East service and return it to Hertford East is to run it south of the station and then cross over to the down side, which is impractical cus it blocks the main line. This seems to me to be a major operating obstacle especially during disruption. Is there no possibility of signalling changes to allow services from Hert East to run into the down side and return to Hert East? Or even building a third track on the down side between Brox Junction to the station to keep Hert East services off the main line until south of Brox? (Admittedly it is a mile or so through a swamp so not easy to add extra track, but surely not impossible).
5.4.4 Cambridge and Stansted Airport services arriving into London Liverpool Street between 08:00 and 09:00 are all 8 carriages in length. The Stansted Airport services and one of the Cambridge services are run using rolling stock that tends to have a low number of seats per carriage. This is appropriate to meet the market for travel to and from the airport because passengers value comfort and space for luggage. Higher density rolling stock could mitigate the capacity gap into London in the peak, but will impact adversely on the airport passengers. Lengthening two of the services from 8 carriages to 12 carriages in length between 08:00 and 09:00 would meet the capacity gap by the end of CP6 and is likely to be the best option