PORTFOLIO MARCH URBAN DESIGN 10 - 11
S. ŞEBNEM TUNÇEL UCL THE BARTLETT SCHOOL OF
ARCHITECTURE UNIT 04
TUTORS BERNHARD RETTIG ANNA ROSE DANIEL RINGELSTEIN
TERM 1
TERM 2
TERM 3
FIRST WORKS London vs Istanbul Comparative Research Analysis of two cities in time
Patchwork City City of Layers
Grahame Shane & Recombinant Urbanism
Heterotopia hunt in west London and movie making
URBAN DESIGN PROJECT Looking for Boundaries in Istanbul
Analysis of the growth, transport, user groups and boundaries in Istanbul
First Design Strategies: Overall Vision
Types of boundary analysis, locating city scale problems and choosing the site
Site Analysis & First Design Proposal
Urban typology and user group analysis & initial thoughts on boundary dilution
Design Reconsideration
Reconsideration of the design proposal’s extent
From Concept to Detail
Defining typologies for the proposal & integration with the site
Finding the Balance
Working with new block typologies & definition of new public realm level
Final Steps
Further boundary dilution and detailed design considerations
CONTENTS
Analysis of Two Cities in Time
LONDON vs ISTANBUL RESEARCH
Amir Sadafi Mayuri Sisodia Qing Shen Qunqun Tang ล ebnem Tunรงel Woong Heo Xiaoqing Qian Yu Suzuki
GROUP A
TWO CITIES IN TIME
LONDON vs ISTANBUL RESEARCH
A TALE OF POWER, PROSPERITY, DISASTERS AND WARS
TWO CITIES IN TIME
LONDON vs ISTANBUL RESEARCH
A TALE OF POWER, PROSPERITY, DISASTERS AND WARS
TWO CITIES IN TIME
LONDON vs ISTANBUL RESEARCH
“City of Layers”
PATCHWORK CITY
INSPIRING IMAGES
CITY OF LAYERS
PATCHWORK CITY
Sketches & First Thoughts
City of Layers My city is the city of layers; layers that have been formed over time with changing circumstances, politics, needs, and technology. The mix of these layers gives the city its unique identity and liveliness, keeping the city alive and vibrant. The city keeps changing; new layers are added, some old layers start to fade and pieces of them start to dissolve and disappear under the others. Each new piece finds its place next to, on top of or under the existing. My proposed future sustainable city also finds its position on the others as a new layer. It is conscious of having to find its place among the existing layers, but has the courage and power to change the city as a whole. It affects and changes the 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 of experiencing the city as a 3D world, making transportation more efficient. There is no need for wide and congested roads anymore; the city offers new functions for the space left behind.
Project Synopsis
CITY OF LAYERS
PATCHWORK CITY
Presentation
Plan showing layers accumulating
CITY OF LAYERS
PATCHWORK CITY
CITY PATCHING
PATCHWORK CITY
Grahame Shane & Recombinant Urbanism
HETEROTOPIA
Group-A Amir Sadafi - Mayuri Sisodia - Qing Shen - Qunqun Tang ล ebnem Tunรงel - Woong Heo - Xiaoqing Qian - Yu Suzuki
HETEROTOPIA
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 boundary something places them to the psychological outside. They exist with invisible boundaries around themselves and sometimes define themselves with it. The first place we discovered is a museum. The second is a Japanese community and Japanese temple around Acton. Third is a busy shopping street and a shopping mall. Fourth is an Indian neighbourhood 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 URBANISM
HETEROTOPIA
Through Our Eyes: The Movie
HETEROTOPIA
GRAHAME SHANE AND RECOMBINANT URBANISM
Searching for a site to address city scale problems Analysing city’s transport systems Setting a goal and defining statement of intent Analysing city’s rapid growth and consequences Analysis of Kucuk Armutlu and Karanfilkoy shanty towns and their surroundings
LOOKING FOR BOUNDARIES
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
North-west Istanbul’s divisions in city scale
pre-fifteenth century
nineteenth century
1950
1970
1990
Issues to be addressed Unusable & unused footbridges Obsession with wider roads
Dominant roads and severe traffic problem
Main roads
City’s transport systems
Rail system
Disappearing pavements
2000
City’s urban growth
Ferry & metrobus
CITY GROWTH & CONSEQUENCES LOOKING FOR BOUNDARIES
URBAN FABRIC ANALYSIS
THE SITE’S BOUNDARIES
LOOKING FOR BOUNDARIES
2
1
1
2
SOCIO-ECONOMIC BOUNDARIES LOOKING FOR BOUNDARIES
Steps to create a strategic vision Categorising boundary types in a rapidly growing city Analysing types of residential growth Identifying the severe traffic problem in Istanbul Creating a strategic vision for a sustainable city
FIRST DESIGN STRATEGIES: OVERALL VISION
Types of residential growth
City’s diversity
Traffic problem
proposed 3rd bridge
2nd bridge
1st bridge
Third bridge plan and future nightmare
BIG PICTURE
City’s growth
roads
geography
urban grain change
social
Types of urban boundaries in a rapidly growing city
cultural
BOUNDARY TYPES
FIRST DESIGN STRATEGIES: OVERALL VISION
NORTHWEST ISTANBUL AND ITS FASCINATING DIVISIONS
Present day zones and pressure points
Booming economy and growing CBDs are threatening restricted residential areas
Proposal plan
Encouraging CBDs to grow towards each other. New residential & mixed use ring
PRESENT DAY ZONES AND PROPOSAL’S STRATEGIC VISION FIRST DESIGN STRATEGIES: OVERALL VISION
Levent site analysis and producing first design proposal Analysing different urban typologies on the site Analysing different user groups Detailed look into the boundaries in the site Classifying existing points of interest Listing the site’s problems, strong points and opportunities Identifying changeable areas Forming initial thoughts on boundary dilution
SITE ANALYSIS & FIRST DESIGN PROPOSAL
DIFFERENT TYPOLOGIES AND USES ON SITE
LEVENT SITE ANALYSIS
SITE ANALYSIS & FIRST DESIGN PROPOSAL
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 storey apartment buildings and no open spaces. Lively commercial streets. Organised weekly street markets.
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.
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.
Walls of Levent: Astonishing physical boundaries between the
low income residential neighbourhood and central business district
DIFFERENT USER GROUPS & BOUNDARIES
Road texture map
Urban grain map
MAIN TWO BOUNDARIES ON SITE
SITE ANALYSIS & FIRST DESIGN PROPOSAL
FOCAL POINT ANALYSIS
Focal point insertion at strategic locations
Changeability map
East-west pedestrian flow
Border and metro stations
SITE ANALYSIS & FOCAL POINT INSERTION SITE ANALYSIS & FIRST DESIGN PROPOSAL
Initial thoughts on boundary dilution First Design Ideas
diluting the boundary mixing different user groups creating an alternative outdoors environment for the residents proposing new dense mixed use grain to accommodate different income users
Setting a Goal
Creating 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
INITIAL DESIGN IDEAS & SETTING A GOAL
Existing building heights analysis map
Levent high-rise vs low-rise
Solitary shanty town buildings
DETERMINING THE PROPOSAL AREA
SITE ANALYSIS & FIRST DESIGN PROPOSAL
Stage 1: Focal points
Inserting public attractions
Focal point 1: Landmark
Stage 2: Open spaces
Inserting new open spaces
Focal point 2: Square, cafes &
monday street market extension
Focal point 3: Outdoor
cinema & performance area
Stage 3: Alignment
Defining guidance lines for new development
Focal point 4: Climbing wall &
skatepark
Focal point 5: Park
PROPOSAL STAGES
Stage 4: Urban grain
Inserting new urban fabric
PROPOSAL VERSION 1
SITE ANALYSIS & FIRST DESIGN PROPOSAL
Reconsideration of the design proposal Determining major design alternatives Further site analysis with travel distances Addressing the severance of the neighbourhood to the east Transforming the streets of the central business district and residential areas Carrying the proposal in third dimension with a concept model Defining heights for the new proposal area First envelope concept design
DESIGN RECONSIDERATION
Option 1
Small interventions along the border
Option 2
Total regeneration of Levent back streets
Option 3
Hybrid option
THREE MAJOR DESIGN ALTERNATIVES
DETAILED SITE ANALYSIS
DESIGN RECONSIDERATION
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 2
DESIGN RECONSIDERATION
PROPOSAL
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: Park
A quality open space where people can meet, relax and escape from busy city life
FOCAL POINT CHARACTERS DESIGN RECONSIDERATION
ENVELOPE EXPLORATION IN 3D
CONCEPT MODEL
DESIGN RECONSIDERATION
Schematic Project Map
Project area, commercial axis and bridges across the main road
New building heights and main pedestrian mobility
HAND DRAWINGS & SCHEMATIC PROJECT MAP
Public transport nodes and guidelines for new buildings
Determining building heights, major mobility axis, existing and proposed commercial lines across Buyukdere Street
NEW BUILDING HEIGHTS
DESIGN RECONSIDERATION
ENVELOPE DESIGN - FIRST ATTEMPTS
LOOKING FOR AN APPROACH DESIGN RECONSIDERATION
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
PRESENTATION
Focal Point 4 Climbing wall and skatepark
Focal Point 5 Park
MODEL
DESIGN RECONSIDERATION
Defining typologies for the proposal & integration with the site Defining new road structure Detailed open space studies Analysing the points of interest in the east and developing the major mobility axis accordingly Defining new land uses Defining new block typologies and applying them to the site
FROM CONCEPT TO DETAIL
Ismet inonu Street for Cours Mirabeau typology
Levent’s new boulevard for the Ramblas 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.
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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
Levent new boulevard location
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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.
NEW STREET NETWORK & TYPOLOGIES
The Ramblas location
Focal point 1: Landmark / viewing tower Surrounding open space
New boulevard
Existing major commercial street extended
Focal Point 2: Square surrounded by cafes Existing weekly street market to be extended Mosque Primary school
Focal Point 3: Outdoors performance area
Focal Point 4: Skatepark & climbing wall
Mosque Primary school
OPEN SPACES AND CONNECTIONS IN DETAIL FROM CONCEPT TO DETAIL
STITCHING CONCEPT
FROM CONCEPT TO DETAIL
Sketch showing the most needed connection points and the insertion of the raised landscaped connections
Sketch showing extent of the proposal and active frontages
Sketch showing existing and proposed points of interest and desire-lines
CONNECTIONS
Locating raised landscaped connections across Buyukdere Street and continuation of the public realm
STITCHING THE TWO SIDES TOGETHER FROM CONCEPT TO DETAIL
Detailed land uses commercial lines, cafes & restaurants, shops & offices, shopping malls, schools and mosques
Land-use map for the proposal residential gf commercial & upper residential gf commercial & upper offices business places of intrest green
Diagram for detailed land uses active frontages & areas where people gather
DIAGRAMS FOR LAND USES
LAND USES MAP
FROM CONCEPT TO DETAIL
Merging divided blocks with envelope concept: This attempt was soon considered inadequate. 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.
FIRST APPLICATION OF THE ENVELOPE TO THE BLOCKS
REVISED PROJECT AREA MAP FROM CONCEPT TO DETAIL
PROPOSED BLOCK TYPOLOGIES Location Open space Building size
more public
larger & taller
Block type - 2
east
Block type - 3
smaller & lower
more private
west
Block type - 1
Existing fabric
Existing fabric Block type - 1
commercial axis & shop entrances
commercial axis & shop entrances
Block type - 3
Block type - 2
commercial axis & shop entrances
commercial axis & shop entrances
BUILDING ENTRANCES AND COMMERCIAL LINES APPLIED FROM CONCEPT TO DETAIL
First attempt for the block typology application along the site: The first attempt proposed a separated pedestrian 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.
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
Two attempts for the block typology application
BLOCK TYPOLOGY APPLICATION TO THE SITE
MASTER PLAN VERSION 1 FROM CONCEPT TO DETAIL
Working with new block typologies & definition of new public realm level New road structure for the CBD Merging the stepped block typologies with the envelope concept New public realm level in detail Zooming into a strip along the site
FINDING THE BALANCE
FP4: Skatepark FP3: Outdoors performance
FP4: Skatepark FP5: Park
East - west major mobility axis
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
Existing fabric
Stepped typology trial
BLOCKS IN 3D
Insertion of the new organic road structure between Levent’s high-rise buildings
A detail from the new road infrastructure junction
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.
MERGING ENVELOPE WITH STEPPED TYPOLOGY VERSION 1 FINDING THE BALANCE
Platform penetration sketches
Section A - A
Section B - B
WORKING WITH THE PLATFORM
Level connections
New functions and a new lively integrated multi-level environment
NEW PUBLIC REALM LEVEL FINDING THE BALANCE
Upper floor plan
Platform porous character
Lower floor plan
Maximum interaction between levels
Perforation study 1
Perforation study 2 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.
Rules for the new public realm
SETTING UP RULES
Searching for the right platform
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2
- Continuation of the same block typologies between the existing high-rise buildings
- New curvy block typology between the existing high-rise buildings
- Sharp edge single platform surface
- Sharp edge single platform surface
3
- Liquid form platform surface for maximum lower level connection - Hybrid block typology trial between the existing high-rise buildings
NEW PUBLIC REALM LEVEL STUDIES FINDING THE BALANCE
MERGING ENVELOPE WITH STEPPED TYPOLOGY VERSION 2
MASTER PLAN VERSION 2 FINDING THE BALANCE
Detailed plan strip location on master plan
DETAILED PLAN STRIP ACROSS THE SITE FINDING THE BALANCE
Sectional elevation showing the proposal in context
Section showing the new public realm level and curved platform trial
SECTION & ELEVATION FINDING THE BALANCE
Further boundary dilution and detailed design considerations Re-visiting the proposal for a seamless boundary dilution Inserting new public functions into the existing business buildings Looking for a new atmosphere in multi-level public realm & new streets Extending the block typologies across the site to dissolve boundaries Further study on merging stepped block typology with the envelope concept
FINAL STEPS
1
Detailed plan progress
2
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.
Section: New public functions for the lower storeys of the existing business buildings and under the new public realm level
PUBLIC REALM IMPROVEMENT
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
NEW ACTIVITY-RICH ENVIRONMENT FINAL STEPS
Levent’s new boulevard typology based on the Ramblas, Barcelona
New Ismet Inonu Street typology based on the Cours Mirabeau, Aix-en-Provence
REVISITING STREET TYPOLOGIES FINAL STEPS
new block layout
new block intermediate detail
new block detailed divisions
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
PAGE TITLE
MASTER PLAN VERSION 3 FINAL STEPS
MASTER PLAN VERSION 4 FINAL STEPS
Lower level floor plan
Upper level floor plan
FLOOR PLANS & NEW FUNCTIONS FINAL STEPS
MERGING ENVELOPE WITH STEPPED TYPOLOGY VERSION 3
PROPOSAL IN CONTEXT FINAL STEPS
Sectional elevation showing the proposal in context
Continuation of the public realm and the new block typologies across the site
DETAILED PLAN STRIP ACROSS THE SITE FINAL STEPS
Figure ground plan - Before
Figure ground plan - After
FIGURE GROUND PLANS FINAL STEPS
New public realm level and proposed new functions for existing buildings
SECTION
FINAL STEPS
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B
A
C
B
C
D
D
A multi-perspective view of Levent’s new activity-rich public realm
NEW VISION FOR LEVENT FINAL STEPS