commissioned in 2005 by Environment Canterbury from consultants GHD Limited (Network Level Investigative Report – Proposed Introduction of Commuter Rail Services to Christchurch City and Environs, June 2005) suggested that commuter rail would involve substantial costs and further investigation would be needed to determine what the requirements are. A 2007 consultation report "Christchurch Rolleston Transportation Study" found that 9% of the people who provided feedback wanted rail to have a greater role in the transport network and were concerned about the possibility of losing future options for developing rail links. One of the conclusions of the study was that rail is not a viable option for public transport within the scope of the study (until 2021). In December 2007, the Selwyn District Council approved the Christchurch, Rolleston and Environs Transportation Study, of which a key component is the protection of the railway corridor between Rolleston and central Christchurch for future commuter use. Pete Hodgson, as Minister for Transport, indicated that, providing passenger rail is incorporated into the Regional Land Transport Strategy, central government would be prepared to meet 60% of the costs of purchasing rolling stock and extending infrastructure if so required, and noted that the initiative is consistent with the National Rail Strategy. In 2013 some residents speculated on a possible commuter rail transport system for Christchurch. 2005 proposal Following a meeting held by Environment Canterbury in April 2005 to discuss options for passenger rail in Christchurch, engineering consultants GHD Limited were commissioned to prepare a report. The purpose of the report was to investigate the options discussed, and provide estimates of the capital and operational costs involved. Five options were included in the final report. Option 1: Utilising the Existing Network This option envisaged the introduction of frequent services between Lyttelton and Islington, with more limited services south to Rolleston/Darfield and north to Rangiora. Little or no new track would be laid, though upgrades to existing track were expected. Also required would be the purchase of passenger rolling stock and the construction of new stations. Option 2: Double Tracking and Resignalling to Belfast As with option 1, this would involve the introduction of frequent services between Lyttelton and Islington, as well as frequent services between Belfast and Islington. In addition to the double tracking of the Main North Line to Belfast, there would also be a need to upgrade Addington Junction, with a possible requirement to also upgrade