Kia Ora,

Thank you for your email.

We are handling your request under the Local Government Official Information and Meetings Act 1987 (LGOIMA). We have forwarded it to the appropriate Christchurch City Council staff, and we will provide a response or update within 20 working days of the date we received your request. If we are unable to respond to your request by then, we will notify you of an extension of that timeframe.

If you have any queries, please feel free to contact me. If any additional factors come to light which are relevant to your request, please do not hesitate to contact me so that these can be taken into account.

Kind regards,

Sean Rainey
Manager Official Information

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[1]Christchurch City Council logo

 
Dear Patrick,

 

I refer to your question below.

 

The Council has decided to release this information to you. This is being finalised and will be provided to you by 20 March 2023.

 

You have the right to seek an investigation and review by the Ombudsman of this decision. Information about how to make a complaint is available at [2]www.ombudsman.parliament.nz or freephone 0800 802 602.

 

Kind regards,

Sean

 

Sean Rainey
Manager Official Information

Official Information Team

 

 

 

From: [email address]
Sent: February 15, 2023 14:47:46
To:[email address]
Subject: Safety assessments for Halswell Junction Road / Alvaston Drive / Hamill Drive Roundabout

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Dear Patrick

 

In response to you queries regarding the Halswell Junction Road / Alvaston
Drive / Hamill Drive Roundabout, staff provide the following responses.

 

What information has the Council received about the risks of an
unsymmetrical roundabout design, particularly the consequent sharp curves
on the Hamill Drive side of the roundabout and the consequent risks to
traffic of misjudging speed on these curves leading to a risk of vehicles
crashing off the road due to failing to navigate these curves safely?

 

As far as the we are aware, the Council hasn’t received any information
specifically about the geometric design of the roundabout or approaches.
Roundabouts are designed and built according to the Austroads: Guide to
Road Design (Part 4B) guidelines and the Christchurch City Council’s
Construction Standard Specifications (CSS). Several factors are considered
so that a proposed roundabout is appropriate for an intersection and the
surrounding road network. The posted speed limit on Hamill Road is 40km/h.

 

Is the Council considering any safety mitigations such as raised platforms
to reduce traffic speed on the Hamill Drive side of the roundabout to
address the crash incidence?

 

In December 2022, Council Staff briefed the Halswell Hornby Riccarton
Community Board regarding potential options for improving safety and
reducing crash risk at the Halswell Junction Road / Alvaston Drive /
Hamill Road Roundabout.

 

The options were:

o Option 1: Lane closure in the Roundabout (with red pavement surfacing)
and on Halswell Junction Road with flexiposts on northbound approach.
o Option 2: Lane closure in the Roundabout (without red pavement
surfacing) and on Halswell Junction Road with flexiposts on northbound
approach.
o Option 3: Speed tables in the approach lanes of Halswell Junction
Road.
o Option 4: Lane grooving.
o Option 5: Barrier

Option 2 was recommended by staff and the Community Board were happy for
staff to proceed with the recommended option. A plan showing the options
is attached.  Option 3 was not the preferred option as it didn’t include
the lane drop on the approach and through the roundabout.  This does not
preclude further measures from being introduced in future.

 

A full report is planned to be presented to the Community Board in March /
April 2023. If approved, the treatments will be completed by the end of
this financial year.

 

You have the right to request the Ombudsman to review this decision.
Complaints can be sent by email to [1][email address], by fax
to (04) 471 2254, or by post to The Ombudsman, PO Box 10152, Wellington
6143.

 

Kind regards,

 

Sean

 

 

Sean Rainey
Manager Official Information and Privacy Officer
Official Information Team

 

 

 

 
   

From: Patrick Dunford <[2][FOI #21831 email]>

Sent: Tuesday, 14 February 2023 8:57 PM

To: Official Information <[3][email address]>

Subject: Official Information request - Safety assessments for Halswell
Junction Road / Alvaston Drive / Hamill Drive Roundabout

 

Dear Christchurch City Council,

 

In view of recent newspaper publicity about vehicle crashes at the
Halswell Junction Road / Alvaston Drive / Hamill Drive Roundabout causing
damage to residential properties adjacent:

 

What information has the Council received about the risks of an
unsymmetrical roundabout design, particularly the consequent sharp curves
on the Hamill Drive side of the roundabout and the consequent risks to
traffic of misjudging speed on these curves leading to a risk of vehicles
crashing off the road due to failing to navigate these curves safely?

 

Is the Council considering any safety mitigations such as raised platforms
to reduce traffic speed on the Hamill Drive side of the roundabout to
address the crash incidence?

 

Yours faithfully,

 

Patrick Dunford

 

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