LANDSCAPE TECHNOLOGY 2
Final Portfolio: Central Coast Redesign LAND7321 Landscape technology 2, Term 1, 2019 Course Convenor: Dr Carlos Bartesaghi Koc Student Name: Rang Jia (Moton) Student ID: Z5186024
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
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CONTENTS
1. PROJECT INTRODUCTION 1. 1. 1. 1.
1 2 3 4
4-7
Location Analysis Environment Analysis Topography & Urban infrastructure analysis Flooding Analysis
2. FINDINGS 8 2.1 Wicked Problem
3. SCENARIO
9
4. MITIGATION OF THE FLOODING ISSUE 10-19 4.1 4.2 4.3 4.4 4.5
Monitor of Flooding Type Mitigation of Water Erosion Mitigation of Bank Erosion Adaptive Building Retreat Analysis
5. CONCLUSION 20
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
1. PROJECT INTRODUCTION 1. 1 LOCATION ANALYSIS
The Central Coast area of NSW is located one hour drive from Sydney to the North, which borders Sydney to Lake Macquarie, bounded by the Watagan Mountain and South Pacific Ocean. This coastal region is well known for its peaceful Brisbane Water and national parks. The local government area is 1,681 square kilometres, the settlement along the string of the water body will be the major site for this analysis. The Davis Town is the main area that needs to be developed.
Location Analysis
Fig 1. location analysis. Edited by Group work in Land 7301.
1. 2 ENVIRONMENT ANALYSIS
Environment Analysis: Davis town belongs to the Blackbutt Orest area. However, according to fig 5, forest coverage rate is lower and the whole area is low density residential area. In light of this, the potential problem of forest fire is not the big chanllenge in Davis Town. The geology of whole area of Davis Town consists of sand, grave, clay. Vegetation Analysis
Fig 4. Vegatation analysis. Edited by Group work in Land 7301.
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Davis T
Fig 2. Da Group wo
Town Location
avis town location analysis. Edited by ork in Land 7301.
Land Use
Fig 5. Land Use analysis. Edited by Group work in Land 7301.
Project Precinct
Fig 3. Project precinct analysis. Edited by Author.
Geology Analysis
Fig 6. Geology analysis. Edited by Group work in Land 7301.
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
PROJECT INTRODUCTION 1. 3 TOPOGRAPHY & URBAN INFRASTRUCTURE ANALYSIS
Topography
Fig 7. Topography analysis. Edited by Group work in Land 7301.
The topography map indicates Saratoga and Davistown area facing a dramatic level change, the northern side of the site is up high and the southern side is lowland where facing the major Urban Sructure
Fig 8. Urban Structure analysis. Edited by Group work in Land 7301.
flooding issue. Most of Davistown’s residents are living in the identified flooding zone when the town center and major commercial are situated at the northern higher land.
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1. 4 FLOODING ANALYSIS
EXISTING NO FLOODING
10 YEAR FLOOD
20 YEAR FLOOD
50 YEAR FLOOD
Fig 9. Existing No Flooing Area analysis. Edited by Group work in Land 7301.
Fig 11. 20 Year Flood analysis. Edited by Group work in Land 7301.
Fig 10. 10 Year Flooding analysis. Edited by Group work in Land 7301.
Fig 12. 50 Year Flood analysis. Edited by Group work in Land 7301.
In 1.2, this report eliminated the critical risks of forest fire. Another coastal risk in Central Coast is the flooding. There are a list of diagrams showing the flash floods damage in Davis Town. The current residential area (Fig 9) when normal water level is RL0.3. When 10 year flood is coming (Fig 10), most of Davistown’s residents are living in the identified flooding zone when the town center and major commercial are situated at the northern higher land. In addition, the flooding coverage is over half of the Davistown residential area when 1 in 20 years flood happens (Fig 11). Almost all of the Davistown residential area are facing flooding issue when 1 in 50 years flood happens (Fig 12).
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
2. FINDINGS 2.1 WICKED PROBLEM
CURRENT 100 YEAR FLOOD
Fig 13. Current 100 Year Flooing Area analysis. Edited by Group work in Land 7301.
100 YEAR FLOOD EXTENT BY 2100
Fig 14. 100 Year Flooing Area analysis Extent by 2100. Edited by Group work in Land 7301.
100 YEAR FLOOD EXTENT BY 2200
Fig 15. 100 Year Flooing Area analysis Extent by 2200. Edited by Group work in Land 7301.
From 1.2- 1.4. This report draws the conclusion that the wicked problem in Davistown is the Flash flooding.
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3. SCENARIO
Flooding
Sensing
Water Erosion
Protection
Adaptive
Retreat
Based on the former analysises, the planner presents a scenario to mitigate the flooding issue. To achieve this scenario, the whole design process focus on the monitor of the flood, the soil protection from the erosion, the adpative architecture and how to identify the proper area for retreating the residents respectively.
Scenario Sea Wall Bridge
Main Road Town Center
Fig 16. Master Plan. Edited by Group work in
To release the pressure of flooding, it separates the Davistown into three parts based on the topography and flooding maps. Then, with the consideration of the investment of new road system and city infrastructures, it retreats the southeastern and western parts into wetlands or recreation areas. Furthermore, an energetic loop will be built along with the main residential area to enhance community connection along with the In this scenario, 273 properties should be retreated. Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
4. MITIGATION OF THE FLOODING ISSUE 4.1 MONITOR OF FLOODING TYPE What is it? It is a floating light situated on the East River and the Bronx River working as a bridge between ecosystem and the public. The installation consists of pieces of floating components to encase sensing and processing technologies to actuate LED displays both above and below the water’s surface. How does it work? 1. Color change to show the change of water quality 2 . Ta c i n g f i s h f i s h a s i n d i c a t o r s o f ecological activity 3. Communication
Components of the sensor
Floating Lights
Fig 17. Floating Lights. Picture from CHRIS WOEBKEN.
Communication of the sensor
Fig 19. Components of the sensor. Fig 20. Section of the sensor. Picture from CHRIS WOEBKEN. Picture from CHRIS WOEBKEN.
Instead of treating the rivers with a “do-not-disturb” approach, the project encourages curiosity and engagement. This system allows to communication with the fish, and to receive real-time information about the river, and spark conversations by contributing to a display of collective interest in the river ecosystem. Section of the sensor
Fig 18. section of the sensor. Picture from CHRIS WOEBKEN.
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Buildable Apply it and improve it. This technology will be used as a flooding warning. The function of communication could attract more attention from the public to the ecosystem.
Investment Useful
Floating sensors will be installed adjacent to the rereation or green spaces. This could atrract visitors to go to the recreation areas and green spaces and encourage more interaction activities between the ecosystem and the public.
Fig 21. Scenario of floating sensors.
Fig 22. Flood warning.
Before flood coming, the color of floating sensors could warn the local residents via monitoring the change of the water speed and the fish informal movement.
Fig 23. Decoration of night.
These floating sensors not only could decorate the night scene, but also interactions function could attract more visitors to come to there.
Cloud Computing The sensor could collect data of ecosystem and water quality. All of the data would be treated by a system- 4.5 Local code system. Fig 24. Cloud Computing. Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
MITIGATION OF THE FLOODING ISSUE 4.2 MITIGATION OF WATER EROSION Fig 24. Cloud Computing.
What is it? Fabricating surfaces
How does it work? Parametic modelling could be used to produce the textiles to control water flow , surface runoff end soil erosion.
Edaphic Effects
Fig 25. Edaphic Effects. Picture from PEG office.
Details of Fabricating Surfaces
Fig 27. Details of Fabricating Surfaces. Picture from PEG office.
A custom geographic unit configuration was developed using parametric software to visualize existing and redirected water flow patterns. These patterns help determine the distribution of geological cell sizes and material mixtures between grass seeds and gravel. The prototype tested the use of traditional plastics and alternative plastics. Some of them are made from petroleum-based plastics commonly found in earth cells. Working Principles
Fig 26. Working Principles. Picture from PEG office.
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Referrence: Project: EDAPHIC EFFECTS, by PEG office, 2011 Viewed in 01/05/2019. Retrieved from: http://www.peg-ola.com/project.php?id=2
Buildable Investment
Apply it and improve it. This structure could be manipulated by the parametric code with the combination of the topography.
Useful
The north part of Davistown is the Saratoga. This area will be transfered into high density area in the future. The Fabricating Surfaces will be applied along with the topography.
Fig 28. Scenario of the Fabricating surfaces.
Fig 29. Before using fabricating surfaces.
Soil fixed
Control Runoff
Fig 30. After using fabricating surfaces.
Infiltration
This stucture could replace the concrete to build the sharp slope in urban area. In addition, the textile could slow down and direct the surface run off into the drainage system. The vertical structure could be consctructed via different needs of infiltration.
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
MITIGATION OF THE FLOODING ISSUE 4.3 MITIGATION OF BANK EROSION
What is it? This is a system of fins to protect the coastal line.
How does it work? These fins can self-regulate based on flow, water temperature, river sediment, salinity or hypoxia. The second mechanism integrated with the fins is a screen system. The screen can be used as an accumulation medium by utilizing the above variables.
Fins
Fig 31. Fins. Picture from Responsive Landscapes.
In order to study this phenomenon in depth, the effects of a group of rotating fins on water flow and sediment flow were systematically recorded, and a notation system for understanding the random distribution of water flow and sediment was established. Although surveys are limited and scalefree, simplicity allows for a formal understanding of these patterns of relationships.
Fins Princeples
Fig 32. Fins Princeples . Picture from Responsive Landscapes.
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Referrence: Project: INTERCOASTAL LAND FORMATION, by Andrew Boyd and Tyler Mohr, Cyborg Coasts, 2015 Viewed in 01/05/2019. Retrieved from: http://responsivelandscapes.com/2015/12/01/intercoastal-land-formation/
Buildable Investment
Apply it and improve it. This technology will be applied along with the coastal line.
Useful
The red break line is the system to install the fins. However, the 2.4 local code system could provide more information to help the planer to identify the detail area to construct the fins. The self- rotation system could be linked with the 2.1 sensor that could provide the accurate speed and orientation of water. Fig 33. Scenario of the Rotation Fins.
Rising Tideďźš
Falling Tideďźš
When water speed is higher enough (monitored by 2.1 sensor), the fins could rotate to allow the sediment to be carried into the costal line of the Davistown.
The fins will rotate acting like closed door to store the sediment to protect the costal line from the water erosion.
Fig 34. Rising Tide
Fig 35. Falling Tide
This system could help the whole area to lift the edge of Davistown. In the long term, the flash flooding problem could be mitigated. This technology will be linked with 2.1 floating sensors and 2.4 local code.
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
MITIGATION OF THE FLOODING ISSUE 4.4 ADAPTIVE BUILDING
What is it? This is a floating structure to allow the building float as high as necessary when flooding occurs.
How does it work? Amphibious buildings coexist with floods, using the flood itself as an activator for upgrading buildings. It accepts the presence of a flood but prevents it from causing significant damage to the building.
Fig 32.https://www.academia. edu/34898425/AMPHIBIOUS_ ARCHITECTURE
Fig 31.https://www.academia. edu/34898425/AMPHIBIOUS_ ARCHITECTURE
Fig 34.http://www. anthropocenemagazine.org/2018/09/ amphibious-architecture/
Amphibious construction has became more popular in recent years. The buoyant foudations could protect the bulding from the flooding damage. In addition, the new technology could be cost-effective and preseve community integrity.
Fig 33.https://www.academia. edu/34898425/AMPHIBIOUS_ ARCHITECTURE
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Referrence: Thriving with water: Developments in amphibious architecture in North America, Elizabeth English, Natasha Klink and Scott Turner, 2016 Viewed in 01/05/2019. Retrieved from: https://www.e3s-conferences.org/articles/e3sconf/abs/2016/02/e3sconf_ flood2016_13009/e3sconf_flood2016_13009.html
Buildable Investment
Apply it and improve it. The reserve residents area could become more adaptive for the 100 year flood.
Useful
The new Davistown residential area plagued by flooding would be replaced by the amphibious building technology to protect this area from the 100 year flood.
Fig 35. Scenario of Amphibious Building.
Fig 38. No protection of 100 year flood.
Fig 36. No protection of 100 year flood.
IF there is no protection, almost whole Davistown will be submerged by the 100 year flood.
Fig 39. Amphibious Redesign of 100 year.
Fig 37. Amphibious Redesign of 100 year flood.
However, after reconstruction of amphibious building, Davistown residential area has not been effected.
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
MITIGATION OF THE FLOODING ISSUE 4.5 RETREAT ANALYSIS What is it? Local Code is an analytical design tool developed by Nicolas de. Monchaux locates the public underutilized land in the city and develops landscape strategies based on local conditions through geospatial analysis combined with parametric design. How does it work? “Finches” for Grasshopper—a visual programming plugin for parametric modeling in Rhinoceros 3D
Fig 40.Retrieved by https:// publicknowledge.sfmoma.org/localcodes-forms-of-spatial-knowledge/
Fig 42.Retrieved by http://www.anthropocenemagazine. org/2018/09/amphibious-architecture/
This process opens up the possibility of designing a continuous feedback loop between speculative and geo-referenced data describing the field phenomenon. The implementation of the de Monchaux workflow is used both to identify the site and to generate local design potential associated with a larger urban network.
Fig 41.Retrieved by http://www. anthropocenemagazine.org/2018/09/amphibiousarchitecture/
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Referrence: Local Code: Real Estates San Francisco, California, 2009 Viewed in 01/05/2019. Retrieved from: http://demonchaux.com/Local-Code-at-SFMOMA
Buildable Investment
Apply it and improve it.
Useful
This system will be applied into the whole design process. It could collect and map data to assist designer do a good design.
continuous feedback loop_"finches" in Rhino
Topography
Eco-System
Plan
Social
city infrastructure
Fig 43. Scenario of Retreat.
The main reason to choose this technology is to identify the proper area for retreating residents. Apart from this, this system could provide a platform for the public to gain a better understanding of their living environment to protect themslf from the damage of the flooding.
Final Portfolio: Central Coast Student Name: Moton Student Number: z5186024
5. CONCLUSION The whole projects are focusing on controling the flooding. There are 5 technologies been used in this project. 1. Using the floating sensors to monitor the water quality and speed to forecast the flood. 2. Two different erosioncontrol technologies to slow the runoff and protect the bank of Davistown.3. The adaptive building could protect the local residents from flooding. 4. 'Local code' is a basic element to link all these technologies and manipulate them. Limitation: All these technologies are suiltible to be used in this project, but how to make full use of it into the local code is still a chanllege. In addition, the amphibious building is still in testing stage that the lifted structure could be damaged by the huge wind power.
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