What are your grounds for believing that the NR timescale forecast for the Oxford Road/Piccadilly enhancements was "ludicrous"? The GRIP 6 start and complete milestones in the Dec 2014 EDP were 2y8m apart, the same as forecast for the Ordsall Chord project at that time. The Ordsall Chord eventually got authorised on 31 March 2015 and was completed on 10 December 2017, i.e. just over 2y8m later. According to
this FOI request, the SoS received the Inspector's report from the public inquiry into the Oxford Road/Piccadilly TWAO on 10 February 2016. If the SoS had signed off the TWAO shortly thereafter, the work could have been completed by the EDP milestone date of December 2018. Even with some allowance for slippage, P15/16 could have been in service by now.
Nevertheless, after further scrutiny of the franchise agreement I concur that it seems likely the Oxford Road/Piccadilly scheme was one of those described as "Future Enhancement Schemes" in the franchise agreement and so not included in the Infrastructure Assumptions Document (IAD), nor considered necessary to implement the TSRs. Presumably over-optimistic timetable modelling had led the DfT to believe that 13tph, including the Bradford - Airport service, could be rammed through Piccadilly P13/14.
At least some of the base infrastructure enhancements included in the IAD can be inferred from the cross references to that document from section 44.1, Definitions, in the main franchise agreement document (pp.40-89). These are:
- “Manchester Victoria to Ashburys Funded Authorisations”
- “Manchester Victoria to Stalybridge Funded Authorisations”
- “Ordsall Chord Funded Authorisations”
- “Oxenholme to Windermere Funded Authorisations”
- “Preston to Blackpool North Funded Authorisations”
- “Preston to Manchester Funded Authorisations”
- “Wigan to Bolton Funded Authorisations”
Of these, only #3, #5 & #6 have actually happened, and the latter two were so late that the related electrification timetable changes had to be deferred from December 2017 to May 2019. #4 has been cancelled, #1 has been deferred indefinitely, #7 has been deferred into CP6, with no start date yet, and #2 has been deferred until the TRU project is authorised.