DELIVERY
MAINTENANCE AND OPERATIONS
COSTS
TIMEFRAME FOR DELIVERY
Presentation by Sam Thornton
30 November 2020
under the Official Information Act 1982
Released
Delivery - methodology
Qualitative assessment of the following sub-criteria:
• Pedestrian impacts during construction
• Bus impacts during construction
• Retail impacts during construction
• Building servicing impacts during construction
• Traffic impacts during construction
under the Official Information Act 1982
Released
Delivery - key assumptions
The following construction time-frames have been assumed, these timeframes are
based on assuming the work is not staged, and could be shorter or longer depending
on several factors:
• Available resources; (both at an industry level and from the Contractor, e.g. number
of crews);
• Available working hours (restrictions around bus / business and noise disruption);
• Wider network and programme coordination; and
• Level of project staging needed
Section
Option 1
Option 2
Option 3
• Desire for trials or proof of concept Lambton Quay 6-9 months
9-15 months
12-18 months
Willis Street
< 3 months
< 3 months
3-6 months
under the Official Information Act 1982
Manners Street
< 3 months
< 3 months
3-6 months
Courtenay Place 3-6 months
3-6 months
6-12 months
Released
Delivery - key assumptions
• Impacts on utilities have not been considered in detail. In general, it is expected that
the impacts on existing utilities will be minimal except in areas where new drainage
provision is required (strip drains, sumps and lateral connectors). Limited areas of
new road pavement are expected and therefore significant levels of excavation are
not expected. There is currently insufficient detail to determine the potential impact
of the options on specific utilities.
under the Official Information Act 1982
Released
Delivery - evaluation outcomes
Section
Option 1
Option 2
Option 3
Comments
Lambton Quay
-1
-1
-2
Step change in impact on
pedestrians, buses and retail
Wil is Street
-1
-1
-2
during delivery of option 3.
No significant differentiators for
Manners Street
-1
Manners Street.
Courtenay Place
-1
-1
-2
under the Official Information Act 1982
Released
Delivery - comments
Aspect
Comment
Loading bay retention
Reduces construction impacts for Options 1 and 2 if remain in same
location – construction effort for Option 3 would remain the same –
no change in score expected
Loading bay and taxi bay retention
Reduces construction impacts for Options 1 and 2 if remain in same
location – construction effort for Option 3 would remain the same –
no change in score expected
Tory Street through movement
Potential minor reduction in construction impacts if cul-de-sac
treatments not required (Option 3) – no change in score expected
under the Official Information Act 1982
Released
Maintenance and Operations - methodology
Qualitative assessment of the following sub-criteria:
• Maintenance costs
• Maintenance access
• Utilities access
• Bus ability to pass broken down vehicle
• Bus diversion routes
• Public events
• Emergency services
For the maintenance scores the full range of scores (0 to -3) has been used to differentiate between the
options. However, the options that score that -3 are not necessarily significantly negative.
under the Official Information Act 1982
Released
Maintenance and Operations - key assumptions
• No significant impact on the current bus diversion routes
• Taranaki to / from Whitmore via Quays
• Willis / Victoria to / from Basin via SH1, Taranaki and
Ghuznee
• None of the options are expected to allow PT services to remain on the Golden Mile
during public events (parades, protests, party zone, very Welly Christmas)
• Footpath areas are costlier to maintain than road carriageway and footpaths (paved)
also have a shorter asset life*
* Alternative footpath area surfacing could have an impact on the scoring, however, current costings
do not allow for a full route replacement.
under the Official Information Act 1982
Released
Maintenance and Operations - evaluation outcomes
Section
Option 1
Option 2
Option 3
Comments
Lambton Quay
-1
-2
-3
Maintenance costs and
maintenance access worsen
from option 1 to 3.
Wil is Street
-1
-1
-2
Step change in impact on
utilities access, buses ability to
pass and emergency services
for option 3 (negligible impact
Manners Street
-1
for options 1 and 2).
No significant differentiators for
Courtenay Place
-1
-2
-3
Manners Street.
under the Official Information Act 1982
Released
Maintenance and Operations - comments
Aspect
Comment
Loading bay retention
Minor improvement for maintenance access (as provides a parking
location – no change in score expected).
Enforcement chal enges with access.
Loading bay and taxi bay retention
Minor improvement for maintenance access (as provides a parking
location – no change in score expected).
Enforcement chal enges with access.
Tory Street through movement
Minor improvement for number of sub-aspects (as provides
improved access – no change in score expected).
under the Official Information Act 1982
Released
Costs - methodology
The estimate has been built up from the following type of items / proportions:
• Linear items;
• Area items;
• Intermittent items;
• Proportion for services relocation;
• Proportion for temporary traffic management;
• Proportion for preliminary and general;
• Proportion for other costs (professional services and client costs); and
• Proportions for risk and contingency.
under the Official Information Act 1982
Released
Costs - key assumptions
Following costs have been excluded:
• Operational and maintenance costs
• Costs associated with wider network improvements to address traffic redistribution
• Quantities based on sketches provided in cost memo e.g.
under the Official Information Act 1982
Released
Costs - evaluation outcomes
$80,000,000
$70,000,000
$60,000,000
$50,000,000
$40M Budget (indicative)
st
o $40,000,000
C
$30,000,000
$20,000,000
$10,000,000
$0
Option 1
Option 2
Option 3
under the Official Information Act 1982
Released
Costs - comments
Aspect
Comment
Loading bay retention
Potential minor cost savings for Option 1 and 2 if remain in same
location
Loading bay and taxi bay retention
Potential minor cost savings for Option 1 and 2 if remain in same
location
Tory Street through movement
Cost saving if cul-de-sac treatments not required
under the Official Information Act 1982
Released
Timeframe for delivery - methodology
Qualitative assessment of the following sub-criteria:
• ability to demonstrate tangible improvements (outputs) within the 2018-21 / 2021-
24 period
• ability to demonstrate tangible improvements (benefits) within the 2018-21 / 2021-
24 period
under the Official Information Act 1982
Released
Timeframe for delivery - key assumptions
• SSBC complete July 2021
• Detailed design complete / construction begins July 2022
• Construction complete by July 2024
• Construction time-frames are not a significant differentiator between options
under the Official Information Act 1982
Released
Timeframe for delivery - evaluation outcomes
Section
Option 1
Option 2
Option 3
Comments
Lambton Quay
2
Wil is Street
2
Complete within desired time-
period
No significant differentiators
Manners Street
2
between options
Courtenay Place
2
under the Official Information Act 1982
Released
Timeframe for delivery - comments
Aspect
Comment
Loading bay retention
No change in score expected
Loading bay and taxi bay retention
No change in score expected
Tory Street through movement
No change in score expected
under the Official Information Act 1982
Released
under the Official Information Act 1982
Released