Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


Puhoi to Warkworth motorway time savings unrealistic

Media release: Travel time savings claimed for Puhoi to Warkworth motorway are unrealistic

Warkworth based transport planning consultant Bevan Woodward has been studying the travel time savings claimed by NZTA for the Puhoi to Warkworth motorway.

Mr Woodward advises: "A slow trip from the tunnel to Warkworth currently takes 13 minutes. That’s an average speed of 78 km/h to travel the 17 km, but in my experience most trips are quicker than this - even during week day peak hour. The only time it's slower is during summer holiday congestion."

"For a 5 minutes travel time saving, the new 18 km motorway would have to be driven in a time of 8 minutes, this equates to a highly unrealistic speed of 135 km/h."

In addition Mr Woodward says: "If the new 18km motorway was driven at the legal speed limit of 100km/h, this would take 11 minutes. However as this is to the north of Warkworth, another one to three minutes must be added to drive through the Hill Street intersection into the town of Warkworth, meaning that there are no time savings on the existing travel time of 13 minutes."

"In NZTA's business case, claimed time savings of 5 to 8 minutes are used to calculate over half of the economic benefits of the proposed motorway. Without these unrealistic time savings the project is a very negative return on investment."

Here are the calculations...

Distance (km) Average speed (km/hr) Time (minutes)

Existing SH1 from tunnel into Warkworth (slow trip = 13 minutes) 17 78 13.1

Proposed Motorway (travel time saving of 5 minutes requires an average speed of 135 km/h) 18 135 8.0

Proposed Motorway @ legal speed limit of 100 km/h = 11 minutes travel time 18 100 10.8

A summary of key issues with the Puhoi to Warkworth motorway is attached.

--


Key issues with the Puhoi to Warkworth motorway


1) The claimed travel time saving of 5 to 8 minutes are unrealistic

A slow trip from the tunnel to Warkworth currently takes 13 minutes. That’s an average speed of 78 km/h to travel the 17 km, but most trips (even during peak hour) are quicker on this 100km/h stretch of road.

For a 5 minutes travel time saving, the new 18 km motorway would have to be driven at an unrealistic 135 km/h.

If the new 18km motorway was driven at 100km/h, this would take 11 minutes. However this is to the north of Warkworth, so when another one to three minutes to drive through the Hill Street intersection is added, it means that there are no time savings.


In NZTA's business case, the claimed time savings are used to generate over half of the economic benefits of the motorway. When these unrealistic time savings are removed from the BCR calculation, the project’s total economic benefit is a negative return on the Government’s investment.

2) The motorway’s single point of access to Warkworth is likely to negatively impact on the town.

Having only one access point to the motorway at Warkworth means making a compromise solution that will have potentially negative impacts on certain sectors and causes travel delays.

For example a single point of access to the North is likely to have very negative impacts for Warkworth retailers and it lengthens travel times between Warkworth and Auckland.


A single point of access to the south means the holiday traffic will continue to queue up over long weekends and public transport access through Warkworth is be impaired.

A single point of access to the west (eg: Woodcocks Rd) would put too much traffic past the College and does not solve the issue of holiday traffic congestion through Warkworth.

A bypass road with multiple access points (as outlined in point 4 below) resolves these issues.


3) We can’t afford it

The Government is borrowing $250 million a week to fund its budget deficit. Consequently, ratings agency Standard & Poor's recently downgraded the outlook on NZ’s national credit rating to negative, this has a direct cost for all New Zealanders.


4) There are more cost-effective solutions are available

Safety improvements on SH1, bypasses of Warkworth and Wellsford, provision of public transport, along with upgrading the Northern railway line is a far more cost- effective and comprehensive solution.

It will provide multiple access points to Warkworth and leave us better placed to with future issues such as:

• Deal with the effects of rising oil prices

• Reduce our carbon emissions

• Spreading the economic development across Rodney

• Providing public transport to the region

• Delivering travel time savings sooner


ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Gordon Campbell:
On The Inadequate Response To Sexual Violence Prevention

On combatting sexual violence, the government has finally begun to undo some of the problems that were of its own making. Early in March, ACC launched the Integrated Services for Sensitive Claims scheme – a package aimed at improving the attitudes of ACC staff towards sexual violence victims, and offering them more substantive support.

Hopefully, this will help to reverse the damage done with the insensitive, punitive ACC policy put in place by the incoming Key government in 2009, which in some parts of New Zealand, saw 90 per cent of sexual violence victims being turned away by ACC. More>>

 

PARLIAMENT TODAY:

"To Help Families Get Ahead": April 1 Changes Kick In

Prime Minister John Key says Paid Parental Leave, the parental tax credit, the minimum wage and Superannuation will increase, while average ACC levies will fall, and more people will be helped in to home ownership... More>>

ALSO:

Climate: Ministers Exclude Emissions From ‘Environment Reporting'

The National Party Government has today revealed that the national environmental report topics for this year will, incredibly, exclude New Zealand’s greenhouse gas emissions, the Green Party said today. More>>

ALSO:

No Retrial: Freedom At Last For Teina Pora

The Māori Party is relieved that the Privy Council has cleared the final legal hurdle for Teina Pora who was wrongfully convicted of murder and sent to prison for 22 years. More>>

ALSO:

Germanwings Crash: Privacy Act Supports Aviation Safeguards In New Zealand

Reports that German privacy laws may have contributed to the Germanwings air crash have prompted New Zealand’s Privacy Commissioner to reassure the public that the Privacy Act is no impediment to medical practitioners notifying appropriate authorities to a pilot’s health concerns. More>>

ALSO:

Treaty: Taranaki Iwi Ngāruahine Settles Treaty Claims For $67.5mln

The settlement includes a $13.5 million payment the government made in June 2013, as well as land in the Taranaki region. The settlement also includes four culturally significant sites, the Waipakari Reserve, Te Kohinga Reserve, Te Ngutu o te Manu and Te Poho o Taranaki. More>>

ALSO:

Gordon Campbell: On A Funeral In Asia, The Northland By-Election, And News Priorities

Supposedly, New Zealand’s destiny lies in Asia, and that was one of Foreign Minister Murray McCully’s rationales for his bungled reforms at MFAT. OK. So, if that’s the case why didn’t Prime Minister John Key attend the state funeral on Sunday of Singapore’s founding leader Lee Kuan Yew? More>>

ALSO:

Werewolf Satire: Not Flag-Waving; Flag-Drowning

The panel choosing the flag options has no visual artists at all. Now, I’ve kerned the odd ligature in my time and I know my recto from my French curve so I thought I’d offer a few suggestions before they get past their depth. More>>

ALSO:

IPCA Reports: Significant Problems In Police Custody

In releasing two reports today, the Independent Police Conduct Authority has highlighted a number of significant problems with the way in which Police deal with people who are detained in Police cells. More>>

ALSO:

Inspector-General of Intelligence and Security: Inquiry Into GCSB Pacific Allegations

The complaints follow recent public allegations about GCSB activities. The complaints, and these public allegations, raise wider questions regarding the collection, retention and sharing of communications data. More>>

ALSO:

TPPA Investment Leak: "NZ Surrender To US" On Corporates Suing Governments

Professor Jane Kelsey: ‘As anticipated, the deal gives foreign investors from the TPPA countries special rights, and the power to sue the government in private offshore tribunals for massive damages if new laws, or even court decisions, significantly affected their bottom line’. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news