Facts regarding replacement inter-island ferry design - wake

Brent Yardley made this Official Information request to KiwiRail

The request was refused by KiwiRail.

From: Brent Yardley

Dear KiwiRail,

The most recent Picton ferry terminal development consultation newsletter dated 27 May quotes the Port Marlborough CEO commenting that "We're excited about the fact that the new ships will produce less wake and fewer emissions than the current ships." With respect to the wake issue, how has it been determined that the new vessels will produce less wake than the current ships? Given that the new vessels are proposed to be twice the size this would appear to present a significant design challenge. It would also appear to be a significant risk to the project and the Marlborough Sounds environment if the ability to complete three return trips per day is in jeopardy. Are there plans to verify real-world wake generation from these vessels? is ISO 31000 being employed to manage risk in this regard? And can any documentation concerning this aspect of the vessel design and performance please be made available?

Yours faithfully,

Brent Yardley

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From: Dave Allard
KiwiRail


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Good afternoon Brent

 

I refer to your email dated 4 June 2020, and copied below -

 

The most recent Picton ferry terminal development consultation newsletter
dated 27 May quotes the Port Marlborough CEO commenting that "We're
excited about the fact that the new ships will produce less wake and fewer
emissions than the current ships." With respect to the wake issue, how has
it been determined that the new vessels will produce less wake than the
current ships? Given that the new vessels are proposed to be twice the
size this would appear to present a significant design challenge. It would
also appear to be a significant risk to the project and the Marlborough
Sounds environment if the ability to complete three return trips per day
is in jeopardy. Are there plans to verify real-world wake generation from
these vessels? is ISO 31000 being employed to manage risk in this regard?
And can any documentation concerning this aspect of the vessel design and
performance please be made available?

 

We have interpreted your request to be specifically about the wake profile
of the new vessels, what risk mitigations are being employed, and for any
documentation we are able to release.

 

We will respond to your request as soon as we are able, and certainly
before 2 July 2020, which is the 20 days after the request was received.

 

Any questions, please get in touch

 

Kind regards

Dave

 

Dave Allard  | Government Relations Advisor

DDI: +64 4 498 3218
Level 4, Wellington Railway Station, Bunny Street, Wellington 6011 | PO
Box 593, Wellington 6140, New Zealand

[1]www.kiwirail.co.nz

 

References

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1. http://www.kiwirail.co.nz/

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From: Brent Yardley

Dear Dave Allard,

Your previous message stated that you would respond to this request before July 02, 2020. My understanding is that this is required by law.

Yours sincerely,

Brent Yardley

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From: Dave Allard
KiwiRail

My apologies Brent - it appear I noted the due date down wrongly on our spreadsheet and had been working towards a later date.
I will have this to you shortly.

Regards

Dave

Dave Allard  | Government Relations Advisor
DDI: +64 4 498 3218
Level 4, Wellington Railway Station, Bunny Street, Wellington 6011 | PO Box 593, Wellington 6140, New Zealand

www.kiwirail.co.nz

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From: Dave Allard
KiwiRail


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Attachment Response OIA2020.24 Brent Yardley Wake Profiles.pdf
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Good afternoon

 

Please find attached the response to your recent OIA.

Any questions, please feel free to get in touch.

 

Kind regards

 

Dave

 

Dave Allard  | Government Relations Advisor

DDI: +64 4 498 3218
Level 4, Wellington Railway Station, Bunny Street, Wellington 6011 | PO
Box 593, Wellington 6140, New Zealand

[1]www.kiwirail.co.nz

 

References

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1. http://www.kiwirail.co.nz/

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