Sanjida Hasan - Portfolio - Urban & Landscape Design
SANJIDA HASAN |+49 176 873 26006 | sanjida.hasan.arch@gmail.com
O N T E N T S
01 WATER BASED URBANISM : Attributes of Hydrological Cultural Heritage interpreted in the urbanism of Ahr Valley, Germany.
02 VISION 2050: DESIGNING AGAINST TIMELINE! ENDURE OR EXTINCT? : Rescue Plan for Burj Rasheed to tackle Sea level rise in the Nile Delta of the Mediterranean Sea.
03 ACTIVATING FRANKFURT (ODER) : Connecting Heritage to design the future through Regenaration at the Hisotic Core of Frankfurt (Oder).
04 EMPOWERING COMMUNITY VIA LINKING THE HERITAGE LAYERS : Adaptive Reuse of Abandoned Industrial Infrastructure. A Case study on the Heritage Ensemble of Kom-ad-dikkah, Alexandria, Egypt.
PROFESSIONAL PROJECTS :
WATER BASED URBANISM:
ATTRIBUTES OF HYDROLOGICAL CULTURAL HERITAGE INTERPRETED IN THE URBANISM OF AHR VALLEY, GERMANY.
Project Type : Master’s Thesis
Urban Design & Landscape
Key words : Nature based Solution (NBS)
Water Sensitive Urban Design (WSUD)
Disaster Risk Reduction (DRR)
Catastrophic Flood, July 2021
Location : Ahr valley, Rhineland Palatine, Germany.
Year : 2023
RHINE RIVER
Mayschoss
Dernau
Rech Altenahr Altenburg Kreuzberg
Ahr River
INTRODUCTION :
The Ahr valley in the Rhineland Palatine state of Germany has witnessed the worst catastrophic flood of its history in the July, 2021 that has left a massive trace of damage and casualties. Even after 3 years, there is no proper planning or guideline for this zone and little improvement has been done from what this disaster had left, making it an urge to respond to this crisis immediately with a multidisciplinary approach.
The river Ahr is a tributary of the Rhine river which is one of Europe’s major river. Communities living in the low-lying regions around the world are in the ultimate risk zone of frequent water-associated calamities, such as: catastrophic flood, water pollution etc. Climate change, in a global scale, has given rise to these disasters in terms of their atrocity and frequency.
This research began with an attempt to understand the interwoven relationship between water and heritage (Natural & Cultural heritage) while developing Nature based tools to MITIGATE frequency & intensity of future flood.
RESEARCH QUESTION :
THEORY & PHILOSHOPY:
WATER SENSITIVE URBAN DESIGN (WSUD)
INCORPORATE
Urban water system
REDUCE Ecological damage ENHANCE
Aesthetically pleasing leisure activities
CHALLENGES :
CLIMATE CHANGE
SOCIAL CHALLENGES
ECONOMIC CHALLENGES
REDUCED TOURISTS
DAMAGED & ABANDONED BUILDINGS
FEAR OF RECURRENCE
EXIT OF RESIDENTS
“ How to confront the frequent destructive flashfloods in the Ahr Valley in order to develop toolsets to build on the floodplains using Case-study-based methodology to generate Nature-based-solutions using lessons learnt from past and modern practices in European Context? ”
RESEARCH METHODOLOGY :
RESEARCH AIM & OBJECTIVES :
ANALYSIS : SITE IMAGES & MAPS :
The Ahr valley consists of many pictersque small villages with a deep rooted history since Roman period. This area is popular for its excellent wine production along the mountains and Half-timbered houses (Fachwerkhaeuser). Moreover, the Ahr mountain has several Geologically astonishing rocks as part of Natural heritage.
The pile of reds (destroyed area) along the Ahr river bend highlights potential space for regenaration and redesign which was formely a camping site. Most of the internal roads were damaged/destroyed too. This map shows which areas needs work and helps to set priority in phasing. Using this map and field survey, design decisions were taken to design nature based flood protection system.
Touristic Map of Ahr valley’s Historical and Recreational attractions showing hiking & cycling routes..
Panaromic view of the Ahr valley with small villages below, Grape vineyards along the Mountain and its natural rock formation.
Satelite Map of Destruction of Altenahr-Altenburg-Kreuzberg villages in Meso Scale.
Image of the village Rech after Destruction of the catastrophic flood of 2021.
ANALYSIS : FLOOD ANALYSIS :
HQ 10 = Hochwasser / Highest Flood water level of last 10 years.
HQ 100 = Highest Flood water level of last 100 years.
HQ Extreme = Extreme Flood water level of all time. (Flood of 2021).
In this map, the dotted blue line represents HQ Extreme outline. The design has aimed to tackle HQ 100, HQ Extreme and also takes into account regular High Tide level.
Average flood water depth: 3-6 meters. (HQ Extreme, Flood of July, 2021)
ANALYSIS
:
RIVER & URBAN MORPHOLOGY MAP
:
This map shows the growth of the urban area from dark to lighter red (18th - 19th cen). The light gray area is the current urban area (2023).
The map shows how some urban spaces has reduced or changed place when it was hit by a flood (specially in Laach & Reimerzoven).
The yellow area shows flood plain of 18th century which has changed a lot now after “Straightening the river” to tackle flood.
The Morphological change of Ahr river (18th Cen., 19cen & 2023) shows the straightened and redirected route of the river near Ahr in Rech, Laach, and in the Nature reserve between Reimerzoven & Altenburg.
The cyan blue represents 19th cen and Teal green represents 18th century river. The dotted blue outline shows HQ Extreme flood outline.
PRESENT MAP OF MACRO SCALE (2023) :
The present map (2023) shows the current urban growth, roads, highway, historic bridges etc.
The area in Green shows the grape vineyards.
The shading in gray color shows the direction of mountain slope.
The dotted blue outline shows HQ Extreme flood outline.
:
SUMMARY
OF ANALYSIS :
VISION & GUIDELINES :
Use the potential HERITAGE infrastructures such as: bridges, abandoned railway buildings, traditional half-timbered houses etc.
For half-timbered houses: new module with modern flood proof house technologies should be designed.
PROTECT the valley from the intense flood
River widening, Deepening, new catchment making, uphill Buffer strip etc. techniques.
Awareness program and Emergency evacuation training by local govt.
EXPERIENCE & EMPOWER
TOURISTIC ELEMENT+ ECONOMY
This diagram shows the relation between Natural & Cultural Landscape of Ahrtal.
The Natural Landscape consist of 5 elements, including the Flood itself.
The cultural Landscape is Manmade and consists of Built and Tangible heritage.
Built Heritage includes the traditional Fachwerkhaeuser (Half timbered houses) and the flood protection elements etc.
The Intangible Heritage consists of wine tasting ceremony and festivals related to wine production, harvesting etc.
Manmade interventions over the time has degraded the quality of Natural Landscape and thus, Natural and Cultural Landscape becomes an interwoven part in the Ahr valley.
EXPERIENCE the flood and the water levels in different situations. To EMPOWER people socially and economically, the proposed landscape offers many new opportunities for income generation. For example: water sports complex in Altenburg, integrated kayaking facilities throughout the ahr river, Wetland golf course at the east coast of Altenahr etc.
- Retention pond and Terrace farming for water catchment
- Proposed Railroad at 180m (earlier rail road was destroyed due to its location in lower level) – Red dotted line
- Flood plain level 160-165 meter.
1. Designing the flood protection elements considering the HQ 100 outline and water level to reduce the damage from strongest future flood.
2. Creating a wetland forest valley on both sides of river edge.
3. Minimize hard surface by introducing permeable paving for all internal roads to improve soakability and water retention.
4. Avoiding and removing any obstruction on the path of infiltration and discharge of the catchment water on the Ahr river.
5. Mixing recreational functions with flood protection elements.
6. Adaptive reuse of abandoned potential buildings.
7. Considering the impact of the intervention area in nearby sites and therefore to work on various scales.
GUIDELINE MAP (LANDSCAPE / MESO SCALE) :
NEIGHBORHOOD/ MICRO SCALE INTERVENTIONS:
: ALTENBURG RETENTION POND
NEIGHBORHOOD/ MICRO SCALE INTERVENTIONS:
BB’ : ALTENAHR LANDSCAPED BEACH
This section of the design is developed where all the internal roads were destroyed and some buildings were damaged by flood. The main proposals here are:
1. Allowing the river space to overflow (Floodable channel and river widening around the bend of the river).
2. Terraced beach as a reinforcement in flood prevention and recreation.
3. The camping & festival ground will be a sponge park to absorb excess water during heavy rain or flood.
4. More water soakable sponge surface is created in residential neighborhood as “Rain Garden” adding bio-diversity and acts as a Bio-swale.
5. Making new internal roads with permeable paving to allow them to soak water.
6. The abandoned Altenahr old rail station can be a point of attraction for its unique facade and good condition. The building is adaptive re-used having new use of Info center, Ahrtal Heritage Museum, Shops & Cafe.
NEIGHBORHOOD/ MICRO SCALE INTERVENTIONS:
CC’ : ALTENBURG WATER SPORTS COMPLEX
The desing aims to EMPOWER the community by strengthening their economy using TOURISTIC potentials. So, The Water sports complex can be an excellent space for sports, tourism and income generation etc. It also acts as a reservoir during Extreme flood. Meanwhile, the new Retention pond acts as a catchment to hold run-off water from uphillls. In this location curvature of river is intense and requires more room to hold the access water flow.
Altenburg AA’: Former camping site with St. Marienthal Church (onliest building unaffected by 2021 flood). Proposed Retention Pond.
Altenahr BB’ : Altenahr Old Railway Station has potential for Adaptive Re-use. Proposed New uses for this building are: Info center, Ahrtal Heritage Museum, Shops & Cafe including outdoor seating & garden.
VISION 2050: DESIGNING AGAINST TIMELINE! ENDURE
OR EXTINCT?
RESCUE PLAN FOR BURJ RASHEED TO TACKLE SEA LEVEL RISE IN THE NILE DELTA OF MEDITERRANEAN SEA
Project Type : Master’s Design Studio Urban Design & Landscape
Key words : Nature based Solution (NBS) Water Sensitive Urban Design (WSUD) Disaster Risk Reduction (DRR), Flood, Sea level rise, Salinity, Water pollution Climate Change, Protecting Deltas - 2050
Location : Burj Rasheed village, Alexandria, Egypt. Year : 2022
The water system is the lifeline for the entire ecosystem. Egypt, taking pride in the Nile river, has lost its glory in the last decades due to the aggression of rapid urbanization, extensive farming and fishing, industrial and household waste etc. The large number of waste that is generated hardly gets proper treatment before dumping into the Nile thus polluting it. Added challenges combined with the impact of global Climate change, sea-level rise, inundation, salinity etc. The project aims at solving the problems regarding the water system of Burj Rasheed, an informal coastal community near Rosetta Mouth in Alexandria, Egypt. The vision lies in mitigating water wastage for we have a very small quantity of freshwater available on the surface of the Earth. Therefore, regulating the quality of available water and add it back to the water system is crucial. The limitation of the project remains in not being able to achieve “Zero Waste” as the project is on a local scale. The future scope of the project includes the concept of several pilot projects that can be implemented in different parts of Egypt.
Key maps of location in Macro & Meso scale (Egypt> Rosetta> Rasheed> Burj Rasheed)
Burj Rasheed (Meso) Nile Delta-Rasheed city (Macro) Rosetta mouth Nile river in Egypt
ANALYSIS: IMPACTS OF CLIMATE CHANGE IN BURJ RASHEED
CHANGING SHORELINE:
CHALLENGES:
58% land submerged by 2050
INCREASING INUNDATION:
Fish farming = High Salinity WQI : 55-27 (poor)
Domestic waste & Sewage seepage in Ground water table (BOD, COD) = pollutes water, increases salinity.
Changes in the Shoreline Morphology shows Lighthouse of Qait bay fort disappeared after 1940.
Shoreline situtation of 2022.
Inundation Ratio forecast for 2050 shows 58% land will be under water.
Simulation finds that Land inundation will increase from 15% to 58% in 2050 due to climate change in Burj Rasheed (2022, 2050)
ANALYSIS:
EXISTING CONDITION OF MESO SCALE (BURJ RASHEED)
WATER SYSTEM OF BURJ RASHEED VILLAGE:
EXISTING WATER FRONT OF BURJ RASHEED VILLAGE:
- The diagram shows sewage leaks from septic tanks polluting ground water and increasing BOD, COD, salinity & reducing land fertility.
- Fish farming & Chemicals from Agriculture pollute Nile water.
- Rainwater is an important source of pure water and Household consumption is the biggest usage of available water in the area.
SECTION: SHORELINE OF NILE, BURJ RASHEED
Insufficient and inconsistent width of Buffer zone & solid waste along shore.
SECTION : SHORELINE INFRONT OF QAITBAY FORT
SYNTHESIS
:
SANKEY DIAGRAM FOR WATER CYCLE ANALYSIS:
INPUT:
The main Frash water sources here are Nile water, From Rain and underground Aquifiers (fresh and drinkable). Sometimes, Salty water from the Mediterranean Sea mixes into Nile river water and makes it undrinkable and unusable for agricultural work as well.
PROCESS:
The process phase is divided into two. Distribution and Consumption phase. Maximum water is consumed by Irrigation and then for Domestic use. Distribution canals are mainly used for irrigation.
OUTPUT:
Each use produces Solid waste and Waste water as their output. Leakages from septic tanks and Chemicals from Agriculture pollutes soil and water and increases salinity, reducing fertility. Some percentage of water is evaporated from Fish farming and goes back to water cycle before coming down again as rain.
PURPOSE OF USE:
The Sankey Diagram is a complex Scientific Diagram used in this process to not only better represent and visualize Literature and Numerical Data, but also to find the LEAKAGE IN THE WATER SYSTEM. It is crucial to identify this volume of Leakage to return that amount back to the water system. According to research, only 1% of Earth’s water is drinkable, so we have to ensure the continuous cycle of pure water.
MACRO SCALE INTERVENTIONS :
NILE DELTA, ROSETTA MOUTH, ALEXANDRIA
The Design Interventions are implemented in 3 different scales. The Macro scale with the Nile delta at Rosetta river mouth in Alexandria. Meso scale of Burj Rasheed Village and the Micro scale of the Neighborhoods. Main challenge: Sea level rise of 1 Meter by 2050. For the Meso Scale, the main visions are:
1. Planning Mangrove Green belt for coastal shoreline protection towards the Meditteranean sea in Alexandria.
2. “Protect, Retreat, Build and Restore” plan to tackle the issues of rising sea level rise which is expected rise by atleast 1m by 2050 and 3m by 2100.
3. Providing Flood monitoring stations to monitor the water level rise & water quality along the Nile river bank.
SECTION : DESIGN FOR ESTIMATED SEA LEVEL RISE IN 2050
COASTAL GREEN BELT & URBAN OASIS IN BURJ RASHEED
MESO SCALE INTERVENTIONS :
BURJ RASHEED
Soakable pave
Steps & Kayaking
04. Water Promenade & Access to river
Qaitbay Fort
Pedestrian with soakable pavement
Natural green buffer with access to water
02, 03. Green belt & Community Space
Green Oasis with native plants (sponge) & seating
Pedestrian with soakable pavement
Green buffer for flood protection
Nile River
04. Water Promenade
Images from Left to right:
1. Creating pleasant landscaping that also reinforces the shoreline and activates the previously inaccessible to non-existent shore buffer. 2. Nature based recovery of shoreline diagram. Using a buffer of Coastal plantation between Nile river and village to create a sponge landscape to soak flood water.
3. Focus area plan of the Coastal sponge buffer and the stepped down riverfront. Opening up water promenade to create recreational value around Qaitbay Fort. It gives access to river, allows Kayaking, boating etc.
4. (right) Intervention proposals in Meso scale (Burj Rasheed Village).
BURJ RASHEED
Green Buffer
Nile River
Urban Oasis
MICRO SCALE INTERVENTIONS:
Visions for Micro scale lies in:
1. Planning Sewage Network to reduce soil and water contimation thus improving water quality. Its important to use all the available water. This analysis is done by using the Sankey diagram.
2. Protection against rising sea level with green belt as sponge landscape.
3. Revival into pleasant shoreline eliminating the debris near Qait bay fort.
The process is to connect polluted black & grey water and make it usable for watering plants of the sponge landscape after local purification by different plants.
1. Using pressure tank, Black & gray water from household is collected in septic tank, which is refined using Surface & Sub-surface wetlands with plants.
It is then sent to storage or for further treatment before drinking.
PROPOSED SEWAGE NETWORK MAP :
Sewage network shows the proposed network of septic tanks for collecting grey and black water and location of local purifiers.
BURJ RASHEED
BURJ MIGHAYZIL
NILE RIVER
ACTIVATING FRANKFURT (ODER)
CONNECTING HERITAGE TO DESIGN THE FUTURE THROUGH REGENARATION AT THE HISTORIC CORE OF FRANKFURT (ODER).
Project Type : Master’s Studio Urban Design & Landscape
Key words : Sustainable Urban Regenaration Peri-urban Cities Border City with Dual Identity
Location : Frankfurt (Oder), Germany.
Year : 2021 Frankfurt (Oder) has lived through different periods of urban development of European, and particularly Eastern-German towns. The city is situated at the German-Polish Border. Hence, has its dual city attitude. There is an exchange of culture, jobs etc between people of both cities.
It is a perfect object of study in order to understand the structural features of the European city and to discuss how to handle the legacy of modernism in city-centres, which have been deeply re-designed after World War II. However, the city center is not active enough as much potential as it has. Therefore, a regenaration of this space is necessary. Along with these problems, it has also witnessed climate challenges such as Flood due to too many hard surfaces and very less soakable green surface.
The main task of this project is: elaboration of an urban design and rehabilitation concept for the area of Frankfurt (Oder)’s former old town.
The major question to deal with is: How can city-centres become vibrant and beautiful places, again – without just copying /reconstructing the past?
GUIDELINE MAP :
1. Figure ground before design shows too many hard surface and rigid grid form streets.
2. Figure ground after design shows breaking the grid pattern of vehicular streets to make a Pedestrian only access to create a path along with Active ground floor functions such as shops, weekly markets, etc. The new roads of the city center will be made of soakable pavement.
3. Focus Area 2: City center new design. The pebble shaped new buildings hold different commercial and public facilities including an open air amphitheatre. Main focus group is students and general public.
4. Focus Area 1: Continuing the flow of greens from Lenne park to Gasometer site. The gasometer site is landscaped with sponge park.
FOCUS AREA - 1 : ADAPTIVE REUSE OF ABANDONED GASOMETER
FOCUS AREA - 2 : PROPOSED CITY CORE
Continuing Typology of Shopping & Eateries on Ground floor from Market Street to Waterfront as a Magnet.
Activting Private Courtyards
Rathaus, Church, Kleist Museum are made more accesible to public by oprning up the space & Pedestrianized.
Continuing flow of green from Lenne Park till water front by opening up the abandoned Gasometer site. (Focus Area 1)
The pebble shape of proposed building is to break monotony, linearity & rigidity of grid pattern Focus Area 2 City center
Retention Pond
Lenne Park
Oder River
Adaptive Reuse of Gasometer Shops, Cafes, Library etc.
Riverfront
Shopping Alley Weekly Market Existing City Hall (Rathaus)
Events Plaza & Amphitheater
Proposed New Mixed use buildings Style: Modern. Facade: Glass, to reflect the surrounding heritage fabrics
Activting Private Courtyards Making the area Walkable, Bicycle-able & soakable.
INTERVENTION PLANS :
FOCUS AREA - 1 : GASOMETER SITE
The Abandoned Gasometer site can be used to continue as an extension of the Lenne park on its left. This will increase SOAKABILITY. The landscaped RETENTION POND will act as a SPONGE surface.
It is then integrated with the residential neighborhood pocket space to accomodate kitchen garden, bbq space, children’s play-space etc.
FOCUS AREA - 2 : CITY CENTER SITE
Main interventions are removing abandoned and unused infrastructure in this area. Designing 3 Pebble shaped new Mixed-use bulidings accomodating functions according to public and student’s needs.
So, it provides an Amphitheater as a space for exchange of thoughts, intellectural debates etc. Reflecting the city’s Assocation with Literary figures (Ex: Kleist, Viadrina University.)
Neighborhood pocket spaces are turned into green pockets.The are is car-free. A guided walkway is designed.
LENNE PARK
LENNE PARK RIVERODER
EMPOWERING COMMUNITY VIA LINKING THE HERITAGE LAYERS
ADAPTIVE REUSE OF ABANDONED INDUSTRIAL INFRASTRUCTURE. A CASE STUDY ON THE HERITAGE PRECINCT OF KOM-AD-DIKKAH, ALEXANDRIA, EGYPT.
Project Type : Master’s Studio Urban Design, Documentation of Heritage, Adaptive Re-use
Key words : Adaptive Reuse of Abandoned Industrial Infrastructure. New Architecture in Heritage building Potential UNESCO World Heritage Site Statement of Significance (SOS) preparation Documenting Heritage
Location : Kom-ad-Dikkah, Alexandria, Egypt. Year : 2022
Kom-ad-Dikkah is a Historic Neighborhood in old town of Alexandria, where the city started to grow from. It has been ocupied in different historic eras Since ancient Romans, to the Greeks, ancient Egyptians, Arabs etc. The neighborhood has always developed above the ruins of former generation’s civilization. Archaeological evidences of ancient infrastructures of various civilization can be found under the grounds of Kom-ad-Dikkah. It was always rich in culture brought by different civilizations and adapted to the root of its citizens. Here lies Two Abandoned Water Tanks, one of them built during Roman period, therefore has become a potential Industrial Heritage Infrastructure. In this project, I tried to link those heritage layers while proposing Modern Use and Facade Look to the water tanks.
Alexandria in context
Kom Al Dikka in Alexandria’s Context
Kom Al Dikka Urban Fabric
Artifacts : Gypsum, Mosaic, Glass etc.
Monuments : Roman Amphitheatre, Pompey’s Pillar, Saad Zaghloul statue etc.
Artistic Value : Reservoirs, Ottoman Buildings etc.
Social Value : Cafes, Festivals, Shrines, etc.
Collage of Attributes & Values of Kom-ad-Dikkah.
Macro Scale: Alexandria Context map
Meso Scale: Kom ad Dikkah in Alexandria Micro Scale: Kom ad Dikkah map
CORE & BUFFER ZONE MAP :
ACTIVITIES TIMELINE MAP :
ACTIVITIES TIMELINE COLLAGES
:
Map of Kom-ad-Dikkah as Serial Sites.
Kom-ad-Dikkah Core & Buffer Zone.
STRATEGY FOR ADAPTIVE REUSE OF THE WATER TANKS:
ADAPTIVE REUSE TECHNIQUES :
CONCEPT :
COLLECTIVE MEMORIES TO GENERATE NEW FUNCTIONS: Essence , Stories, Former use
SECTION :
1st FLOOR PLANS OF BOTH WATER TANKS AT 32M LEVEL
PROFESSIONAL PROJECT : OBAIDIA MOSQUE IN BANGLADESH.
COMPLETE DESIGN | 3D MODELLING | RENDERING | LANDSCAPING
Used Softwares: AutoCAD | SketchUp | Adobe Photoshop | Lumion
GROUND FLOOR PLAN
1st FLOOR PLAN
2nd FLOOR PLAN
PROFESSIONAL PROJECT : HOSPITALITY BUILDING : REST HOUSE, BANGLADESH.
Used Softwares: AutoCAD | SketchUp | Adobe Photoshop | Lumion
PROFESSIONAL PROJECT : INDUSTRIAL BUILDING : SPINNEREI IN IRELAND.
3D MODELLING | RENDERING | LANDSCAPING | FURNITURE DETAILING
Used Softwares: AutoCAD | SketchUp | Adobe Photoshop | V-Ray
Cairo, Egypt. 2022
Chittagong, Bangladesh. 2017.
THANK YOU
A small glimpse of things that make me happy… Photo taken during field work of a Play space design in Participatory Urban Design method at a Youth development center for psychologically disturbed and human trafficking victim children at Bosila, in Dhaka, Bangladesh.
