22 May 2023
File Ref: OIAPR-1274023063-2490
Patrick Dunford
By email: [FYI request #22803 email]
Tēnā koe Patrick,
Request for information 2023-122
I refer to your request for information dated 15 May 2023, which was received by Greater Wel ington
Regional Council (Greater Wel ington) on 15 May 2023. You have requested the fol owing:
“In view of the Government's announcement that new trains wil be purchased for the Wairarapa
Line, what additional infrastructure, such as station facilities and passing places, is expected to be
required on the Wairarapa Line for the new trains, according to business case proposals?”
Greater Wel ington’s response fol ows:
You have requested that your request be treated with urgency and have provided the fol owing
reasons: “As the above information is pertinent to discussions about level crossing locations it would
be desirable to have an expedited response.” Greater Wel ington has assessed your request for
urgency and has processed your request as soon as is reasonably practicable.
Our Detailed Business Case on the Lower North Island Rail Integrated Mobility 2021 (LNIRIM)
explains how we developed the proposed investment. This document is attached to this response
(Attachment 1) but can also be found on our website:
https://www.gw.govt.nz/document/19521/detailed-business-case-lower-north-island-rail-
integrated-mobility-2021
Please refer to Chapter 5, Section 5.2 of the DBC which presents the scope of assets required under
the preferred solution, including station infrastructure upgrades, a new depot facility, and passing
loop extensions.
Wel ington office
Upper Hutt
Masterton office
0800 496 734
PO Box 11646
PO Box 40847
PO Box 41
www.gw.govt.nz
Manners St, Wel ington 6142
1056 Fergusson Drive
Masterton 5840
[Wellington Regional Council request email]
For clarity, on the Wairarapa Line, the infrastructure upgrades that are being delivered to enable this
project also include a New Zealand Upgrade Programme (NZUP) project. In summary, the
improvements wil be:
1) Instal ing a signal ing system to Masterton, including level crossing upgrades (NZUP),
2) Freight passing loop near Woodside (Greytown) (NZUP),
3) Improved Waingawa freight connections (NZUP),
4) Maymorn Station crossing loop and second platform (LNIRIM),
5) Lengthening and raising platforms on Wairarapa Line (LNIRIM),
6) Masterton stabling yard (LNIRIM), and
7) Depot maintenance facility at Masterton (LNIRIM).
Information contained within the LNIRIM document has been redacted under the Local Government
Official Information and Meetings Act 1987 (the Act). Cost information contained in this document
has been withheld under section 7(2)(b)(i ) of the Act on the basis that making this information
available would be likely unreasonably to prejudice the commercial position of the person who
supplied or who is the subject of the information.
We have considered whether the public interest in the requested information outweighs Greater
Wel ington’s need to withhold certain aspects of the LNIRIM document. As a result, we do not
consider that the public interest outweighs Greater Wel ington’s reason for withholding parts of the
document under the grounds identified above.
If you have any concerns with the decision(s) referred to in this letter, you have the right to request
an investigation and review by the Ombudsman under section 27(3) of the Act.
Please note that it is our policy to proactively release our responses to official information requests
where possible. Our response to your request wil be published shortly on Greater Wel ington’s
website with your personal information removed.
Nāku iti noa, nā
Samantha Gain
Kaiwhakahaere Matua Waka-ā-atea | Group Manager Metlink
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