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3.4. Shared Space Lane

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(Weitergeleitet von Shared Space Lane)

Between an Avenue and a Multi-Way Boulevard, there is a need for a much slower, safer kind of street.


Shared Space Lane
Shared Space Lane


Problem-statement: Within quieter local areas, vehicles must move slowly and safely around pedestrians. They can do so within lanes that are designed to share space with pedestrians, bicycles and other slower modes of travel.


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Discussion:: There are many varieties of shared-space lane that have been developed around the world. One of the best known is the Dutch “woonerf”, which is a generally narrow, irregularly shaped passageway designed to slow vehicles and to create safe places for pedestrians to move.¹


Seven Dials, a remarkably busy intersection in the heart of London, yet lacking conventional traffic controls. Pedestrians and cars mingle freely.


Shared Space lane
Shared Space lane
Seven Dials, a remarkably busy intersection in the heart of London, yet lacking conventional traffic controls. Pedestrians and cars mingle freely.


It has been assumed that areas that mix cars and pedestrians would be unsafe without extensive controls including signals and signage. Research has shown, however, that in low-speed areas, vehicles and pedestrians can share space, as long as the visibility is good, and as long as the geometry prevents high-speed driving. An example is the Seven Dials intersection in London, where a monument in the center forces vehicles to drive slowly as they enter the intersection.


The idea of shared space has sometimes been stretched to allow cars and buses into wide paved spaces, whose geometry does not inhibit speed. This practice can make the pedestrian experience dangerous. A pragmatic approach does not take it for granted that motorists will automatically control their vehicle’s speed, and will provide geometrical and other constraints (e.g. bollards and level changes) to help control the situation. It is always important to assess the context and fit the design accordingly.²


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Therefore:

Within the spaces of the 400M network, and where not occupied by other special districts, create a network of shared space lanes providing vehicular access, but also providing safe movement throughout for pedestrians.


Shared Space Lane
Shared Space Lane


Create shared space lanes within the Pedestrian Sanctuary as a slower and quieter part of a neighborhood, between busier kinds of streets…




¹ See e.g. Karndacharuk, A., Wilson, D. J., & Dunn, R. (2014). A review of the evolution of shared (street) space concepts in urban environments. Transport Reviews, 34(2), 190-220.


² Shared space lanes are not an “anything goes” environment, and care must be taken to ensure that vehicles, when they are present, operate safely. For a broader discussion of this issue, see Hamilton-Baillie, B. (2008). Shared space: Reconciling people, places and traffic. Built Environment, 34(2), 161-181.



SECTION I:

PATTERNS OF SCALE


1. REGIONAL PATTERNS

Define the large-scale spatial organization…

1.1. POLYCENTRIC REGION

1.2. BLUE-GREEN NETWORK

1.3. MOBILITY CORRIDOR

1.4. 400M THROUGH STREET NETWORK

2. URBAN PATTERNS

Establish essential urban characteristics…

2.1. WALKABLE MULTI-MOBILITY

2.2. LEVEL CITY

2.3. PUBLIC SPACE SYSTEM

2.4. BIOPHILIC URBANISM

3. STREET PATTERNS

Identify and allocate street types…

3.1.URBAN GREENWAY

3.2. MULTI-WAY BOULEVARD

3.3. AVENUE

3.4. SHARED SPACE LANE

4. NEIGHBORHOOD PATTERNS

Define neighborhood-scale elements…

4.1. STREET AS CENTER

4.2. PEDESTRIAN SANCTUARY

4.3. NEIGHBORHOOD SQUARE

4.4. NEIGHBORHOOD PARK

5. SPECIAL USE PATTERNS

Integrate unique urban elements with care…

5.1. SCHOOL CAMPUS

5.2. MARKET CENTER

5.3. INDUSTRIAL AREA

5.4. HOSPITAL

6. PUBLIC SPACE PATTERNS

Establish the character of the crucial public realm…

6.1. PLACE NETWORK

6.2. WALKABLE STREETSCAPE

6.3. MOVABLE SEATING

6.4. CAPILLARY PATHWAY

7. BLOCK AND PLOT PATTERNS

Lay out the detailed structure of property lines…

7.1. SMALL BLOCKS

7.2. PERIMETER BLOCK

7.3. SMALL PLOTS

7.4. MID-BLOCK ALLEY

8. STREETSCAPE PATTERNS

Configure the street as a welcoming place…

8.1. STREET AS ROOM

8.2. TERMINATED VISTA

8.3. STREET TREES

8.4. STREET FURNISHINGS

9. BUILDING PATTERNS

Lay out appropriate urban buildings…

9.1. PERIMETER BUILDING

9.2. ARCADE BUILDING

9.3. COURTYARD BUILDING

9.4. ROW BUILDING

10. BUILDING EDGE PATTERNS

Create interior and exterior connectivity…

10.1. INDOOR-OUTDOOR AMBIGUITY

10.2. CIRCULATION NETWORK

10.3. LAYERED ZONES

10.4. PASSAGEWAY VIEW



SECTION II:

PATTERNS OF MULTIPLE SCALE


11. GEOMETRIC PATTERNS

Build in coherent geometries at all scales…

11.1. LOCAL SYMMETRY

11.2. SMALL GROUPS OF ELEMENTS

11.3. FRACTAL PATTERN

11.4. FRAMING

12. AFFORDANCE PATTERNS

Build in user capacity to shape the environment…

12.1. HANDLES

12.2. CO-PRODUCTION

12.3. FRIENDLY SURFACES

12.4. MALLEABILITY

13. RETROFIT PATTERNS

Revitalize and improve existing urban assets …

13.1. SLUM UPGRADE

13.2. SPRAWL RETROFIT

13.3. URBAN REGENERATION

13.4. URBAN CONSOLIDATION

14. INFORMAL GROWTH PATTERNS

Accommodate “bottom-up” urban growth…

14.1. LAND TENURE

14.2. UTILITIES FIRST

14.3. DATA WITH THE PEOPLE

14.4. INCREMENTAL SELF-BUILD

15. CONSTRUCTION PATTERNS

Use the building process to enrich the result…

15.1. DESIGN-BUILD ADAPTATION

15.2. HUMAN-SCALE DETAIL

15.3. CONSTRUCTION ORNAMENT

15.4. COMPLEX MATERIALS



SECTION III:

PATTERNS OF PROCESS


16. IMPLEMENTATION TOOL PATTERNS

Use tools to achieve successful results…

16.1. FORM-BASED CODE

16.2. ENTITLEMENT STREAMLINING

16.3. NEIGHBORHOOD PLANNING CENTER

16.4. COMMUNITY MOCKUP

17. PROJECT ECONOMICS PATTERNS

Create flows of money that support urban quality…

17.1. TAX-INCREMENT FINANCING

17.2. LAND VALUE CAPTURE

17.3. EXTERNALITY VALUATION

17.4. ECONOMIES OF PLACE AND DIFFERENTIATION

18. PLACE GOVERNANCE PATTERNS

Processes for making and managing places…

18.1. SUBSIDIARITY

18.2. POLYCENTRIC GOVERNANCE

18.3. PUBLIC-PRIVATE PLACE MANAGEMENT

18.4. INFORMAL STEWARDSHIP

19. AFFORDABILITY PATTERNS

Build in affordability for all incomes…

19.1. INTEGRATED AFFORDABILITY

19.2. COMMUNITY LAND TRUST

19.3. MULTI-FAMILY INFILL

19.4. SPECULATION TAX

20. NEW TECHNOLOGY PATTERNS

Integrate new systems without damaging old ones…

20.1. SMART AV SYSTEM

20.2. RESPONSIVE TRANSPORTATION NETWORK COMPANY

20.3. AUGMENTED REALITY DESIGN

20.4. CITIZEN DATA