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FINALDESIGN RENDER IN RELATION TO OTHER GROUPMEMBERS DESIGN

COURSE

THE UNIVERSITY OF AUCKLAND

ADVISORS

2nd Semester 2012 Design 6

School of Architecture and Planning

Camia Young & Jordon Saunders

FUTURE CHRISTCHURCH V2

DESIGN CONCEPT

INVESTIGATION

PROJECT DESCRIPTION

Out of all the cities in New Zealand, Christchurch has the worst air

quality; the air pollution level is extremely high compared to other

cities. High pollution levels are the cause of many problems, peo-

ple can suffer from cancer, disease, and there are a large number

of deaths caused this every year. There are several reasons be-

hind this, geographically Christchurch is guarded by the Port Hills,

which prevent smog dispersal, and trap the air pollution produced

by heating. The earthquakes have only added to the problem due

to the ongoing demolition there are a hight number of particulates

let thrown into the atmosphere. Unfortunatly the city previously

known as the garden city can now be called the polluted city.

Given that the air quality is a serious issue, I started my investiga-

tion by looking into methods that can be used to reduce the pollu-

tion level. The best way to achieve this is to plant trees as well as

outdoor and indoor plants, hence reducing the indoor and outdoor

pollution at the same time. I found out that planting Willow trees

are the best to reduce the outdoor air pollution level, so I divided

Christchurch into 50sqm and then I calculate how many trees are

needed per grid. I found a total number of 60,000 Willow treeswould be needed to reduce the pollution to acceptable level.

For my design, I proposed a tree farm integrated with housings.

The site is within the Green Frame (refer to the CCDUs master

plan). The master plan leave the Green Frame unspecied hence

it would be a perfect site to integrate a tree farm and housing. The

trees are transplanted to other locations once they mature. The

purpose behind integrating housing into the tree farm is to bring

workers back to the city so as to reduce their commute and re-

duce the overall emmissions. The integration of the tree farm and

the housing I belive will m ake Christchurch a garden city.

ATMOSPHERE | ECO-VILLAGENan Wu

SITE PLAN

AXONOMETRIC

Showing the proportion between Road / Green zone / Trees / Housing in the redeveloped master plan.

CONCEPT ELEVATIONShowing the gradient between housing and trees - More house/less trees to More trees/less house.

POTENTIALPLANTING AREAWITHIN EACH SUBURB

POLLUTION DATA INDOOR PLANTS NEEDED TO REDUCE TOTAL AIR POLLUTION TREES NEEDED TO REDUCE TOTAL OUTDOOR POLLUTION

Apollution diagra m of Christchurch showing how bad the air quality is. Indoor pollution also need to be r educed as people live/sleep in inside, he nce high indoor pollution would cau se health

issues. Acalculation of indoor plants needed to red uce the air quality.

Outdoor pollution is main caused by vechiles/industry/wood, it is a serious problem due to many factors, hence I Divided

Christchurch into 50m sq grids, calculating how many trees are needed in each grid to reduce the overall pollution to an

acceptable level. The result gives an large number of 60,000 trees.

AIR POLLUTION DESCRIPTION

Air quality incidents repo rted to Environment Canterburys Pollution Hotline most

commonly relate to agricultural or industrial odour as well as smoke from domestic

and outdoor res. However, air quality incidents reported also relate to a wide range

of other issues such as dust from construction sites or quarries, particulates from

abrasive blasting, and other emissions from industrial premises.

Seventy-three per cent of the complaints received by the pollution hotline this quar-

ter were related to air quality (1192 complaints). Christchurch City had the highest

number of complaints (907 complaints) which is due to Environment Canterbury

enforcing the air plan rules relating to domestic chimneys.

WHYCHRISTCHURCH HAVE SUCH HIGH POLLUTION LEVEL

The Port Hills (to the south-east of the city) act as a natural barrier that prevents the

smogs dispersal. In the winter months, smog becomes trapped down at the street level

underneath a layer of warmer air (inversion layer). The climate of the area plays a part in

the problem too. The average temperature in winter is just 12C meaning most homes will

end up using some form of heating. Wood burners are the cheapest way for most to heat

their homes but are also the main cause of the citys air quality problems. Burning wood

(particularly moist wood) emits PM10 particulate into the atmosphere. Older res, par -

ticularly those installed before 2000 (over 20,000 of which are still left in Christchurch),

burn less efciently emitting higher quantities of PM10. Eighty percent of Christchurchs

winter air pollution comes from wood or coal burners and open res, while the remaining

twenty percent is made up of vehicle emissions and industry.

SEASONALAIR POLLUTION LEVEL

DETAILDESCRIPTION ON WHAT CAUSES POLLUTION

Windy conditions allow pollution to disperse and consequently have a far

smaller impact. On the other hand, features such as valleys and hills cause

pollution to linger, combine and consequently intensify enhancing the ef-

fects. On top of this, during cold still conditions (generally through the winter

months) temperature inversions occur that trap smog at street level beneath

a layer of warmer air. Therefore, at times pollution can be worse in a particu-

lar year because of the weather conditions alone, rather than as a result of

increased rates of pollution. Conversely, a windy year with few temperature

inversions may show fewer pollution episodes regardless of any changes in

pollution emitted.

PROPOSED SOLUTION

The City Councils management of the issue involved setting a goal of compliance with national air qual-

ity standards (not exceeding 50 microgrammes/m3 of PM10 per day) by 2013. This was done by zoning

the city into categories of restricted use of wood and coal burning res and zones with no restrictions,

as well as rezoning some areas of industry. Afull ban was imposed in some areas through the winter

months to ensure milestones are met. They established the Clean Heat Project educating residents

about cleaner heating alternatives and offering subsidies to people converting from open res.

MAIN FACTORS OF AIR POLLUTION

SUITABLE PLANTS FOR REDUCING INDOOR POLLUTIONAreca Palm: An upright houseplant tha t is somewhat vase shaped. Specimen plants can reach 10 to 12 foot in height.

Prefers a humid area to avoid tip damage. Requires pruning. When selecting an Areca palm look for plants with larger

caliber trunks at the base of the plant.

Lady Palm: durable palm species adapts well to most interiors. The Rhapis are some of the easiest palms to grow, but

each species has its own particular environment and culture requirements. The Lady Palm grows slowly, but can grow

to more than 14 in height with broad clumps often having a diameter as wide as their height.

Bamboo palm: prefers bright indirect light. New plants will lose of some interior foliage as they acclimate to indoor set-

tings. This plant likes to stay uniformly moist, but does not like to be over-watered or to sit in standing water.

Rubber Plant: Grows very well indoors, preferring semi-sun lighting. Avoid direct sunlight, especially in summer. Young

plants may need to be supported by a stake. The Ficus g rows to 8with a spread o f 5. Wear gloves when pruning, as

the milky sap may irritate the skin.

Dracaena Janet Craig : The Dracaena grows to 10with a spread of 3. Easy to grow, these plants do best in bright

indirect sunlight coming from the east/west. They can adapt to lower light levels if the watering is reduced. Keep the soil

evenly moist and mist frequently with warm water.

DECIDING WHICH TREE TO USE FOR TREE FARM

Millions of poplars and willows have been planted on farms in recent decades, usually supplied through regional coun-

cils for stabilising erosion-prone hill country, providing shelter and shade for farm livestock, vista, resolving drainage-

problems and, in some regions, as a source of supplementary fodder during dry summer months.

Uses:

Environment: As a plant, willow is used for bioltration, constructed wetlands, ecological wastewater treatment systems,

hedges, land reclamation, landscaping, phytoremediation, reduce of air pollution, soil erosion control, shelterbelt and

windbreak, soil building, soil reclamation, tree bog compost toilet and wildlife habitat.

Energy:

Willow is grown for biomass or biofuel, in energy forestry systems, as a consequence of its high energy in-energy out

ratio, large carbon mitigation potential and fast growth.

-Each Willow tree are able to reduce the pollution level 10% greater than any other trees. Needs a total amount of 60,000

trees to cure the city of Chrischurch. And 400 trees for my chosen site.

FLOOR PLAN - HOUSE NO.1 SCALE 1:100



ZOOM IN RENDER OF HOUSING

ExistingHospital

Sport Facilities

Residential& Mix

CityFrame

Cricket Court

CityCentral& Business

HospitalRelated

Sport Related

Residential& Mix Related

FrameMaintainceRelated

FieldRelated

BusinessRelated

Lost

PROCESS OF REDEVELOPING THE CCDU MASTER PLAN

O RI GI NA L CC DU MA ST ER PL AN OF SE LE CT ED SI TE D EV EL OP IN G T RE E / HO US E P LA NT IN G M ET HO D B Y GR ID DI NG TH E S IT E

PLANTING IN THE TREES

PLANTING IN THE HOUSES

FLOOR PLAN - GREEN HOUSE SCALE 1:200

INTERIOR RENDER - BEDROOM INTERIOR RENDER - LIVING ROOM INTERIOR RENDER - BALCONY - VIEWING OUT

ELEVATION

Astreet elevation of the tree / house farm showing the propor tion of trees in relation to housing, and the material of the houses

CROSS SECTION - HOUSE NO.2 SCALE 1:50

MATERIALS USED FOR EACH PART OF THE HOUSE



CROSS SECTION - GREEN HOUSE SCALE 1:200

DETAILED DRAWING FOR HOUSINGDETAILED DRAWING FOR GREEN HOUSE

POLLUTION COUNTS AND HEALTH EFFECTS

NUMBER OF HOUSEHOLDS THAT BURN WOOD TO HEAT THEIR HOMES PER KM2

DOMESTIC HOME HEATING EMISSION FACTORS

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