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Topic:Topic: Wall EffectWall EffectMandy FokMandy Fok
Fiona Chan Fiona Chan Mandy WongMandy Wong
Abby NgAbby NgHermia ChengHermia Cheng
What is Wall effect?What is Wall effect? It is means that in the high It is means that in the high
concentration city, the skyscrapers concentration city, the skyscrapers are block the sunlight and affect the are block the sunlight and affect the wind velocity.wind velocity.
It brings negative effect.It brings negative effect.Also, the screen effect is refer to the Also, the screen effect is refer to the
building is totally block the wind and building is totally block the wind and brings a lot of relative disease.brings a lot of relative disease.
Cause of Wall effectCause of Wall effectThe appear of Wall effect because The appear of Wall effect because
government is lack of urban government is lack of urban planning and supervision.planning and supervision.
The distance between building and The distance between building and building are smaller and cause Wall building are smaller and cause Wall effect.effect.
In order to use the land effectively, In order to use the land effectively, the developer will make the new the developer will make the new building to turn toward to building to turn toward to skyscraper.skyscraper.
Photos of Wall effectPhotos of Wall effect
How does ‘Wall Effect’ How does ‘Wall Effect’ affect our daily life?affect our daily life?
HealthHealth It weakened the wind from sea to It weakened the wind from sea to
inland.inland.
Air Quality turns worse.Air Quality turns worse.
Easy to get Trachea or Respiratory Easy to get Trachea or Respiratory tract diseasestract diseases
Life QualitiesLife Qualitiesviews are blockedviews are blocked
Turning on the air conditioner is Turning on the air conditioner is needed and the frequency of it is needed and the frequency of it is higher the normalhigher the normal
Electrical bill disbursement is Electrical bill disbursement is higherhigher
Reference: http://lamhoyeung.mocasting.com/p/77064
Example of Example of wall effect wall effect
in HKin HK
Vision Vision CityCity Location: Tsuen WanLocation: Tsuen Wan
High residential buildinHigh residential buildingg
““Citywalk”—a big shoCitywalk”—a big shopping mallpping mall
Grand Grand WaterfrontWaterfront Location: To Kwa WanLocation: To Kwa Wan
Density is highDensity is high Very tall buildingsVery tall buildings
Union Square Union Square 7 parts of development7 parts of development Mixed land useMixed land use
-residential-residential-shopping mall-shopping mall-hotel-hotel-kindergarten -kindergarten -office & high rise building-office & high rise building
The Harbourside & The Arch
Other exampleOther example
The problems The problems of wall effectof wall effect
dwindled sea breeze circulation among the buildings and streets
The wall-like style building groups, which can acquire the best view and most of the sunlight
block the sea breeze and worsen the air ventilation ability among the low rise buildings
dwindled sea breeze circulation among the buildings and streets
The wall-like style building groups, which can acquire the best view and most of the sunlight
block the sea breeze and worsen the air ventilation ability among the low rise buildings
1.rise in temperature -residents in older area switch on the air conditioners more frequently than before
-increase of monthly amount in electricity expense
2.air ventilation problem
-Worsen air condition
Harmful to Human’s health
Decrease of foreign investment, since air quality is the second important consideration
•Reform city gauge meeting
•Mainly use ground space construction storehouse level, the car park, the engine house, the market and so on, reduces the platform scale
•Set up the region cold system.
•Improve the city layout to coordinate environment and the mountain ridge background all around
Solution of wall effectSolution of wall effect
•Supposes passes the wind stratum or the ventilating duct greatly
•Supposes the building vegetation level and the vegetation wall
•If certain are’s density is too high, must plan again
•Considers the air circulation aspect the question
*END**END*