1. Topic: Wall Effect Mandy Fok Fiona Chan Mandy Wong Abby Ng Hermia Cheng

2. What is Wall effect? It is means that in the high concentration city, the skyscrapers are block the sunlight and affect the wind velocity. It is means that in the high concentration city, the skyscrapers are block the sunlight and affect the wind velocity. It brings negative effect. It brings negative effect. Also, the screen effect is refer to the building is totally block the wind and brings a lot of relative disease. Also, the screen effect is refer to the building is totally block the wind and brings a lot of relative disease.

3. Cause of Wall effect The appear of Wall effect because government is lack of urban planning and supervision. The appear of Wall effect because government is lack of urban planning and supervision. The distance between building and building are smaller and cause Wall effect. The distance between building and building are smaller and cause Wall effect. In order to use the land effectively, the developer will make the new building to turn toward to skyscraper. In order to use the land effectively, the developer will make the new building to turn toward to skyscraper.

4. Photos of Wall effect

5. How does Wall Effect affect our daily life?

6. Health It weakened the wind from sea to inland. It weakened the wind from sea to inland. Air Quality turns worse. Air Quality turns worse. Easy to get Trachea or Respiratory tract diseases Easy to get Trachea or Respiratory tract diseases

7. Life Qualities views are blocked views are blocked Turning on the air conditioner is needed and the frequency of it is higher the normal Turning on the air conditioner is needed and the frequency of it is higher the normal Electrical bill disbursement is higher Electrical bill disbursement is higher Reference: http://lamhoyeung.mocasting.com/p/77064

8. Example of wall effect in HK

9. Vision City Location: Tsuen Wan Location: Tsuen Wan High residential building High residential building Citywalka big shopping mall Citywalka big shopping mall

10. Grand Waterfront Location: To Kwa Wan Location: To Kwa Wan Density is high Density is high Very tall buildings Very tall buildings

11. Union Square 7 parts of development 7 parts of development Mixed land use -residential -shopping mall -hotel -kindergarten -office & high rise building Mixed land use -residential -shopping mall -hotel -kindergarten -office & high rise building The Harbourside & The Arch

12. Other example

13. The problems of wall effect

14. 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

15. 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

16. 1.rise in temperature -residents in older area switch on the air conditioners more frequently than before -increase of monthly amount in electricity expense

17. 2.air ventilation problem -Worsen air condition Harmful to Humans health Decrease of foreign investment, since air quality is the second important consideration

18. 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 effect

19. Supposes passes the wind stratum or the ventilating duct greatly Supposes the building vegetation level and the vegetation wall If certain ares density is too high, must plan again Considers the air circulation aspect the question

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