Sebnem Tuncel MArch UD Portfolio
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Transcript of Sebnem Tuncel MArch UD Portfolio
PORTFOLIOMARCH URBAN DESIGN 10 - 11
UNIT 04TUTORS
BERNHARD RETTIGANNA ROSE
DANIEL RINGELSTEIN
S. ŞEBNEM TUNÇEL
UCLTHE BARTLETT
SCHOOL OFARCHITECTURE
TERM 1
TERM 2
TERM 3
CONTENTS
FIRST WORKSLondon vs Istanbul Comparative Research
Analysis of two cities in time
Patchwork CityCity of Layers
Grahame Shane & Recombinant UrbanismHeterotopia hunt in west London and movie making
URBAN DESIGN PROJECTLooking for Boundaries in Istanbul
Analysis of the growth, transport, user groups and boundaries in Istanbul
First Design Strategies: Overall VisionTypes of boundary analysis, locating city scale problems and choosing the site
Site Analysis & First Design ProposalUrban typology and user group analysis & initial thoughts on boundary dilution
Design ReconsiderationReconsideration of the design proposal’s extent
From Concept to DetailDefining typologies for the proposal & integration with the site
Finding the BalanceWorking with new block typologies & definition of new public realm level
Final StepsFurther boundary dilution and detailed design considerations
Analysis of Two Cities in Time
LONDON vs ISTANBUL RESEARCH
GROUP A
Amir Sadafi
Mayuri Sisodia
Qing Shen
Qunqun Tang
Şebnem Tunçel
Woong Heo
Xiaoqing Qian
Yu Suzuki
TWO CITIES IN TIMELONDON vs ISTANBUL RESEARCH
A TALE OF POWER, PROSPERITY, DISASTERS AND WARS
TWO CITIES IN TIMELONDON vs ISTANBUL RESEARCH
A TALE OF POWER, PROSPERITY, DISASTERS AND WARS
TWO CITIES IN TIMELONDON vs ISTANBUL RESEARCH
“City of Layers”
PATCHWORK CITY
INSPIRING IMAGES
CITY OF LAYERSPATCHWORK CITY
Sketches & First Thoughts
CITY OF LAYERSPATCHWORK CITY
City of Layers
My city is the city of layers; layers that have been formedover time with changing circumstances, politics, needs, andtechnology. The mix of these layers gives the city its uniqueidentity and liveliness, keeping the city alive and vibrant.
The city keeps changing; new layers are added, some oldlayers start to fade and pieces of them start to dissolve anddisappear under the others. Each new piece finds its placenext to, on top of or under the existing.
My proposed future sustainable city also finds its position onthe others as a new layer. It is conscious of having to find itsplace among the existing layers, but has the courage andpower to change the city as a whole. It affects and chang-esthe existing while at the same time being open to change.
The new city is the city of webs and links. It is a new way ofexperiencing the city as a 3D world, making transportationmore efficient. There is no need for wide and congestedroads anymore; the city offers new functions for the space left behind.
Project Synopsis
Presentation Plan showing layers accumulating
CITY OF LAYERSPATCHWORK CITY
CITY PATCHINGPATCHWORK CITY
Grahame Shane & Recombinant Urbanism
HETEROTOPIA
HETEROTOPIA
Group-A
Amir Sadafi - Mayuri Sisodia - Qing Shen - Qunqun TangŞebnem Tunçel - Woong Heo - Xiaoqing Qian - Yu Suzuki
HETEROTOPIAGRAHAME SHANE AND RECOMBINANT URBANISM
Group-A is looking for heterotopias in West London...
We began walking in the west of London and discovered bubbles of spaces which are almost floating.
Though they are physically within the urban bound-ary something places them to the psychological outside.
They exist with invisible boundaries around them-selves and sometimes define themselves with it.
The first place we discovered is a museum. The sec-ond is a Japanese community and Japanese tem-ple around Acton. Third is a busy shopping street and a shopping mall. Fourth is an Indian neighbour-hood in Wembley.
They all exist in a different space and time within the city.
In order to express the idea of invisible boundary which we called “bubbles of spaces” for duality and contradictions, the reality and unreality; we tried to reflect the four specific places through glass, mirror, body of a car, or surface of a cell phone.
Project Description
HETEROTOPIA
GRAHAME SHANE AND RECOMBINANT URBANISMHETEROTOPIA
Through Our Eyes: The Movie
Searching for a site to address city scale problems
Analysing city’s transport systemsSetting a goal and defining statement of intent
Analysing city’s rapid growth and consequencesAnalysis of Kucuk Armutlu and Karanfilkoy shanty towns and their surroundings
LOOKING FOR BOUNDARIES
North-west Istanbul’s divisions in city scale
First Statement of Intent
I would like to
discover the clash and overlap between the public and private realm from pedestrian scale
to urban scale and where the connections lie
question the definition of the boundaries
propose flexible solutions where boundaries can be stretched and spaces can be merged from one another while integrating the advantages
of different areas to each other
CITY GROWTH & CONSEQUENCESLOOKING FOR BOUNDARIES
Dominant roads and severe traffic problem
City’s transport systems
City’s urban growth
pre-fifteenth century
nineteenth century
1950
1970
1990
2000
Main roads Rail system Ferry & metrobus
Issues to be addressed
Unusable & unused footbridges
Obsession with wider roads
Disappearing pavements
URBAN FABRIC ANALYSIS
THE SITE’S BOUNDARIESLOOKING FOR BOUNDARIES
1
2
1 2
SOCIO-ECONOMIC BOUNDARIESLOOKING FOR BOUNDARIES
Steps to create a strategic vision
Categorising boundary types in a rapidly growing cityAnalysing types of residential growth
Identifying the severe traffic problem in IstanbulCreating a strategic vision for a sustainable city
FIRST DESIGN STRATEGIES: OVERALL VISION
BIG PICTURE
Types of residential growth
Third bridge plan and future nightmare
1st bridge
2nd bridge
proposed 3rd bridge
City’s diversity
Traffic problem
FIRST DESIGN STRATEGIES: OVERALL VISIONBOUNDARY TYPES
Types of urban boundaries in a rapidly growing citycultural
social
urban grain change
geography
roads
City’s growth
NORTHWEST ISTANBUL AND ITS FASCINATING DIVISIONS
PRESENT DAY ZONES AND PROPOSAL’S STRATEGIC VISION
Present day zones and pressure pointsBooming economy and growing CBDs are threatening restricted residential areas
Proposal planEncouraging CBDs to grow towards each other. New residential & mixed use ring
FIRST DESIGN STRATEGIES: OVERALL VISION
Levent site analysis and producing first design proposal
Analysing different urban typologies on the siteAnalysing different user groups
Detailed look into the boundaries in the siteClassifying existing points of interest
Listing the site’s problems, strong points and opportunitiesIdentifying changeable areas
Forming initial thoughts on boundary dilution
SITE ANALYSIS & FIRST DESIGN PROPOSAL
DIFFERENT TYPOLOGIES AND USES ON SITE
SITE ANALYSIS & FIRST DESIGN PROPOSALLEVENT SITE ANALYSIS
DIFFERENT USER GROUPS & BOUNDARIESWalls of Levent: Astonishing physical boundaries between the low income residential neighbourhood and central business district
Buyukdere Street: 8-lane road separating Levent into two
West Levent: Low income residential area. Ex-shanty town. Organic street structure. Dense urban fabric with six or seven sto-rey apartment buildings and no open spaces. Lively commercial streets. Organised weekly street markets.
East Levent: High income residential area. Small scale one or two storey houses with private gardens. Well maintained streets. Empty public parks with no attraction. Individual private sports and social clubs.
Central Levent: Central business district. Divided by Buyukdere Street. High-rise and skyscraper corporate business buildings. No public space. Unfriendly streets. Most open spaces are car parks.
MAIN TWO BOUNDARIES ON SITE
Road texture map
Urban grain map
SITE ANALYSIS & FIRST DESIGN PROPOSAL
FOCAL POINT ANALYSIS
SITE ANALYSIS & FOCAL POINT INSERTION
Focal point insertion at strategic locations
Changeability map East-west pedestrian flow Border and metro stations
SITE ANALYSIS & FIRST DESIGN PROPOSAL
INITIAL DESIGN IDEAS & SETTING A GOAL
Initial thoughts on boundary dilution
First Design Ideasdiluting the boundary
mixing different user groupscreating an alternative outdoors
environment for the residentsproposing new dense mixed use grain to
accommodate different income users
Setting a GoalCreating a vibrant dense mixed use
sustainable environment with significant open spaces to make a more desirable
Levent, thus reducing the number of commuters from east to west and easing
the city’s traffic congestion
DETERMINING THE PROPOSAL AREA
Existing building heights analysis map
Levent high-rise vs low-rise Solitary shanty town buildings
SITE ANALYSIS & FIRST DESIGN PROPOSAL
PROPOSAL STAGES
Stage 1: Focal pointsInserting public attractions
Stage 2: Open spacesInserting new open spaces
Stage 3: AlignmentDefining guidance lines for
new development
Stage 4: Urban grainInserting new urban fabric
Focal point 1: Landmark
Focal point 2: Square, cafes & monday street market extension
Focal point 3: Outdoor cinema & performance area
Focal point 4: Climbing wall & skatepark
Focal point 5: Park
PROPOSAL VERSION 1SITE ANALYSIS & FIRST DESIGN PROPOSAL
DESIGN RECONSIDERATION
Reconsideration of the design proposal
Determining major design alternativesFurther site analysis with travel distances
Addressing the severance of the neighbourhood to the eastTransforming the streets of the central business district and residential areas
Carrying the proposal in third dimension with a concept modelDefining heights for the new proposal area
First envelope concept design
THREE MAJOR DESIGN ALTERNATIVES
Option 1Small interventions along the border
Option 2Total regeneration of Levent back streets
Option 3 Hybrid option
DESIGN RECONSIDERATIONDETAILED SITE ANALYSIS
Proposal Version 2
The extent of the proposal increased to address the severance of the neighbourhood to the east and to improve Levent’s
high-rise business area.
The diagram on the opposite page is showing the new proposal area together with the focal point locations and the
guidance lines for the new proposal.
PROPOSAL VERSION 2DESIGN RECONSIDERATION
PROPOSAL
FOCAL POINT CHARACTERS
Focal point 1: Landmark / Viewing Tower
For the people to enjoy beautiful Istanbul views
Focal point 2: Public Square
Surrounded by locally owned cafes and with space for Monday
market to expand
Focal point 3: Outdoor Performance Area
Weekly screenings on the existing security wall
Focal point 4: Climbing Wall / Skatepark
Transforming walls into a new lunch-hour activity
Focal point 5: ParkA quality open space where peo-
ple can meet, relax and escape from busy city life
DESIGN RECONSIDERATION
ENVELOPE EXPLORATION IN 3D
CONCEPT MODELDESIGN RECONSIDERATION
HAND DRAWINGS & SCHEMATIC PROJECT MAP
Project area, commercial axis and bridges across the main road
New building heights and main pedestrian mobility
Public transport nodes and guidelines for new buildings
Schematic Project Map
NEW BUILDING HEIGHTS
Determining building heights, major mobility axis, existing and proposed commercial lines across Buyukdere Street
DESIGN RECONSIDERATION
ENVELOPE DESIGN - FIRST ATTEMPTS
LOOKING FOR AN APPROACHDESIGN RECONSIDERATION
PRESENTATION
Major mobility axis is carried from west to east by raised landscaped bridges across Buyukdere Street
Focal point 5 at intersection of major mobility axis and new main boulevard
MODEL
Focal Point 4
Climbing wall and skatepark
Focal Point 5
Park
DESIGN RECONSIDERATION
FROM CONCEPT TO DETAIL
Defining typologies for the proposal & integration with the site
Defining new road structureDetailed open space studies
Analysing the points of interest in the east and developing the major mobility axis accordinglyDefining new land uses
Defining new block typologies and applying them to the site
NEW STREET NETWORK & TYPOLOGIES
Levent’s new boulevard for the Ramblas typology
Ismet inonu Street for Cours Mirabeau typology
Assigning character to two main streets in the proposal:
The two main streets in the proposal were inspired by the Ramblas and Cours
Mirabeau, two famously successful streets.
Levent’s new boulevard and the Ramblas comparison:
The new boulevard is designed for people to be on, to walk, to meet and to talk. The Ramblas is successful in this goal.
The Ramblas runs approximately 1.1 kms , starting and finishing with a major active node. This corresponds to the proposed
Levent Boulevard.
Levent new boulevard location
The Ramblas location
N
N
New street network:
Proposed streets are well integrated with the existing street structure.
Existing straight CBD road structure
Existing organic road structure
Proposed road structure
OPEN SPACES AND CONNECTIONS IN DETAIL
Focal point 1: Landmark / viewing tower
Surrounding open space
New boulevard
Existing major commercial street extended
Existing weekly street market to be extended
Mosque
Primary school
Focal Point 2: Square surrounded by cafes
Focal Point 3: Outdoors performance area
Focal Point 4: Skatepark & climbing wall
Mosque
Primary school
FROM CONCEPT TO DETAIL
STITCHING CONCEPTFROM CONCEPT TO DETAIL
CONNECTIONSSketch showing existing and proposed
points of interest and desire-lines
Sketch showing extent of the proposal and active frontages
Sketch showing the most needed con-nection points and the insertion of the
raised landscaped connections
STITCHING THE TWO SIDES TOGETHER
Locating raised landscaped connections across Buyukdere Street and continuation of the public realm
FROM CONCEPT TO DETAIL
DIAGRAMS FOR LAND USES
Detailed land uses
commercial lines, cafes & restaurants, shops & offices, shopping malls, schools and mosques
Diagram for detailed land uses
active frontages & areas where people gather
Land-use map for the proposal
residential
gf commercial & upper residential
gf commercial & upper offices
business
places of intrest
green
LAND USES MAPFROM CONCEPT TO DETAIL
FIRST APPLICATION OF THE ENVELOPE TO THE BLOCKS
Merging divided blocks with envelope concept:
This attempt was soon considered inade-quate. Although the envelope corresponded
to the existing building heights and open spaces, the direct application resulted with a block typology that is alien to the existing
dynamic fabric.
REVISED PROJECT AREA MAP FROM CONCEPT TO DETAIL
PROPOSED BLOCK TYPOLOGIES
Exist
ing
fabr
ic
Ope
n sp
ace
mor
e pr
ivat
em
ore
publ
ic
Build
ing
size
smal
ler &
low
erla
rger
& ta
ller
Loca
tion
wes
tea
st
Bloc
k ty
pe -
1Bl
ock
type
- 2
Bloc
k ty
pe -
3
BUILDING ENTRANCES AND COMMERCIAL LINES APPLIED
Exist
ing
fabr
icBl
ock
type
- 1
Bloc
k ty
pe -
2Bl
ock
type
- 3
commercial axis & shop entrances
commercial axis & shop entrances
commercial axis & shop entrances
commercial axis & shop entrances
FROM CONCEPT TO DETAIL
BLOCK TYPOLOGY APPLICATION TO THE SITE
First attempt for the block typology application along the site:
The first attempt proposed a separated pe-destrian route between the blocks which was soon abandoned.
This approach thought to be not appropriate for a good integration with the existing road structure and not suitable for the existing street culture.
Two attempts for the block typology application
Block typology application (opposite page):
The application of the specified block typologies on an east - west strip along the site
new block layout
new block intermediate detail
new block detailed divisions
MASTER PLAN VERSION 1FROM CONCEPT TO DETAIL
FINDING THE BALANCE
Working with new block typologies & definition of new public realm level
New road structure for the CBDMerging the stepped block typologies with the envelope concept
New public realm level in detailZooming into a strip along the site
BLOCKS IN 3D
Envelope concept applied to blocks on the model
Platformed connections between the high-rise business buildings & new roof gardens at appropriate locations on the existing roofs
Landscaped connection across Buyukdere Street
FP5: Park
FP4: Skatepark
FP4: Skatepark
FP3: Outdoors performance
East - west major mobility axis
Existing fabric
Stepped typology trial
FINDING THE BALANCEMERGING ENVELOPE WITH STEPPED TYPOLOGY VERSION 1
This section shows the application of the defined block typologies and divisions on a chosen block.
The union of the curvy character of the envelope and the stepped character of the block typologies. The stepped character of the proposed buildings offers roof gardens for the residents.
Insertion of the new organic road structure between Levent’s high-rise buildings A detail from the new road infrastructure junction
WORKING WITH THE PLATFORM
Section B - B
Platform penetration sketches
Section A - A
NEW PUBLIC REALM LEVEL
Level connections
New functions and a new lively integrated multi-level environment
FINDING THE BALANCE
SETTING UP RULES
Platform porous character
Maximum interaction between levels
Upper floor plan
Lower floor plan
Perforation study 1
Perforation study 2
Rules for the new public realm
Mobility on the new public realm level on the landscaped bridges is mainly pedestrian and bicycle based.
The paths are relatively narrow and the street surface is cobbled. These paths can still accommodate vehicles if needed, though they are not designed to offer through access.
NEW PUBLIC REALM LEVEL STUDIES
- Sharp edge single platform surface
- Continuation of the same block typologies between the existing high-rise buildings
Searching for the right platform
- Sharp edge single platform surface
- New curvy block typology between the existing high-rise buildings
- Liquid form platform surface for maximum lower level connection
- Hybrid block typology trial between the existing high-rise buildings
1 32
FINDING THE BALANCE
MERGING ENVELOPE WITH STEPPED TYPOLOGY VERSION 2
MASTER PLAN VERSION 2FINDING THE BALANCE
DETAILED PLAN STRIP ACROSS THE SITE
Detailed plan strip location on master plan
FINDING THE BALANCE
SECTION & ELEVATIONSection showing the new public realm level and curved platform trial
Sectional elevation showing the proposal in context
FINDING THE BALANCE
FINAL STEPS
Further boundary dilution and detailed design considerations
Re-visiting the proposal for a seamless boundary dilutionInserting new public functions into the existing business buildings
Looking for a new atmosphere in multi-level public realm & new streetsExtending the block typologies across the site to dissolve boundaries
Further study on merging stepped block typology with the envelope concept
PUBLIC REALM IMPROVEMENT
Section:
New public functions for the lower storeys of the existing business buildings and under the new public realm level
Detailed plan progress
Image 1: Regularising platform penetrations
Image2: Ensuring the continuity of the block typologies across two boundaries: Both between the west neighbourhood & CBD and Buyukdere Street.
Creating a seamless movement between the proposed new blocks from the west residential area, between the high-rise business buildings and eventually to the east residential neighbourhood.
1
2
FINAL STEPSNEW ACTIVITY-RICH ENVIRONMENT
New feeling:
New multi-level public realm and active frontages defined by the proposed new public functions insertion
Continuity
Continuity of activities along the site
Levent’s new boulevard typology based on the Ramblas, Barcelona
REVISITING STREET TYPOLOGIESNew Ismet Inonu Street typology based on the Cours Mirabeau, Aix-en-Provence
FINAL STEPS
PAGE TITLE
Improvements
Continuous green network
New bus stop locations on the junctions of the existing main road and the proposed
new major mobility axis
Application of continuous block typologies across the boundaries
new block layout
new block intermediate detail
new block detailed divisions
MASTER PLAN VERSION 3FINAL STEPS
MASTER PLAN VERSION 4FINAL STEPS
Upper level floor plan
Lower level floor plan
FLOOR PLANS & NEW FUNCTIONSFINAL STEPS
MERGING ENVELOPE WITH STEPPED TYPOLOGY VERSION 3
PROPOSAL IN CONTEXTFINAL STEPS
DETAILED PLAN STRIP ACROSS THE SITE
Continuation of the public realm and the new block typologies across the site
Sectional elevation showing the proposal in context
FINAL STEPS
Figure ground plan - Before
Figure ground plan - After
FIGURE GROUND PLANSFINAL STEPS
SECTIONNew public realm level and proposed new functions for existing buildings
FINAL STEPS
BA
NEW VISION FOR LEVENT
D
D
C
CBA
A multi-perspective view of Levent’s new activity-rich public realm
FINAL STEPS