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Scenario B

Improvements in Scenario A plus: Better connections to the east and south

An extra Mt Victoria tunnel and separating east-west traffic from other movements at the Basin Reserve would deliver faster and more reliable public transport connections to the south and east, and allow mass transit from the railway station to Newtown and the airport. This would also make it easier for everyone, including people walking and on bikes, to get to and from the southern and eastern suburbs.

Cost: $700 - $900 m*

Time to build: 5 – 7 years*

*Includes enhanced bus mass transit. Light rail would add $350m - $500m, and increase the time to construct by about 18 months



More Information


Prioritising public transport, walking and cycling in the central city.

Proposed changes:

  • Second Mt Victoria tunnel
  • New roads around the Basin
  • Better walking priority through Mt Victoria
  • Connect central city cycle lanes through Mt Victoria to Cobham Drive
  • Extend bus lanes to Newtown and Kilbirnie/airport, and provide for mass transit
  • Bus-only lanes through the Basin.
What about Mass Transit?

What about Mass Transit?

This Scenario provides for the phased introduction of mass transit. It would extend the dedicated bus lanes from the Golden Mile through the Basin Reserve to Newtown, through a new Mt Victoria tunnel to Kilbirnie and the Airport, with the introduction of a new mass transit fleet (either bus rapid transit or light rail) within a 10+ year timeframe.

Light rail would add $350 – $500m, and 18 months to construction.

What about the Basin?

What about the Basin?

Under this Scenario, the Basin road layout would be changed to separate north-south traffic from east-west traffic, using bridges and/or tunnels. The map shows one of the options for how this might be achieved.

SH1 (heading from the airport to the motorway) goes over Dufferin St, and then under Sussex St before entering the Arras Tunnel. Travelling to the airport on SH1 still uses Vivian Street.

The Principles

The Principles

How this scenario rates against LGWM principles:

Accessible, healthy and safe

Less traffic and slower traffic speeds in the core CBD; easier and safer to walk and cycle, including from the south and east.

Better public transport

Significantly quicker and more reliable journeys by public transport via mass transit to the south and east.

A significant increase in public transport use.

Clean and green

Air quality benefits along the Golden Mile/central area due to reduced traffic.

No significant change to greenhouse gas emission at a regional level.

Compact city

Improved walkability and more space for people - Golden Mile and Lower Cuba.

Supports growth and urban renewal in Adelaide Road area.

Demand and supply

Ways to manage travel demand will be considered under all scenarios.

Future-proof and resilient

A more resilient, multi-modal connection to the south and east; via mass transit, separating traffic movements, and additional lanes allow quicker recovery after an unplanned event.

Past, present, future

Likely to require some demolition of, relocation of, or impact on heritage items (buildings, trees, areas).

Opportunities to enhance the built environment via less traffic.

Predictable travel times

Less traffic congestion and delays due to significantly more people taking public transport and improved flows through Basin and Mt Vic/Ruahine St.

Set in nature

More green space, trees and public open space in the central city; but impacts town belt land along Ruahine Street.


Improved access to hospital and airport.

Supports growth and urban renewal in Adelaide Road area.

Travel choice

Unlocks mass transit; improved transport options for all to/from the south and east – but reduced access for private vehicles in CBD.

Wider View

Improving the city as a place for people and valuing the wider benefits of integrating transport and urban form, is important under all scenarios.


Each scenario has been measured against the following criteria. Click below to see what the impact of this scenario could be.

  • Better urban form & amenity

    Scenario A benefits plus: Supports growth areas Adelaide Road and in the eastern suburbs

  • Less traffic in the city centre

    Morning peak: 250 to 500 (1-2%) fewer vehicles in the city centre

  • Easier to walk in the city centre

    People walking wait less time to cross roads when walking in the city centre (up to 25% reduction at Cuba/Vivian)

  • Safer & easier to cycle in the city

    Scenario A benefits plus: Better link to the east through Mt Victoria for people on bikes

  • More people take public transport

    Morning peak: 250 to 500 (4-8%) more passengers from the south and east

  • Quicker, more reliable public transport journeys

    9 - 12 minutes (20-25%) quicker for morning peak journeys between Island Bay/Miramar and Wellington station

  • More reliable travel times by car, truck, van

    10 - 20% quicker/more reliable for westbound journeys on SH1 between Airport and Johnsonville (no change eastbound) 

  • More resilient transport network

    Medium improvement: In transport network delays and disruptions 

  • A safer transport network

    In the city and to the east: Safer transport infrastructure, separating people from traffic

  • On-street parking

    Moderate impact: Spaces affected on Golden Mile, Vivian St, and on main routes south and east

  • Built environment and heritage

    Some impact: On heritage items due to works at Basin / Mt Vic / Ruahine St

  • Emissions

    Minor impact: Fewer emissions from less inner-city traffic; increased traffic to east but less congested