Infill Redevelopment Overlay (IR-O) Sustainable Streets and Blocks

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Infill Redevelopment Overlay(IR-O)Sustainable
Streets and Blocks

• Purpose and Intent.
• Traditional Development Basics.
• Block Standards.
• Retrofitting Vacant and Existing Sites.
• Discussion Points.

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Sustainable Purpose and Intent

• Implement Policy 1.2-l of the Plan.
• Encourage sustainable development.
• Improve standards for walkable development.
• Establish connectivity standards for pedestrians,
  bicyclers, mass transit and automobiles.
• Reduce traffic on arterials and collectors.
• Encourage the creation of development that has a
  sense of place.
• Minimize adverse impacts of automobile traffic
  patterns and commercial development on existing
  adjacent residential communities.

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TDD CommercialDesign Objectives

• a. Public spaces, such as plazas and squares,
  integrated within commercial development
  providing places for people to gather or rest..
• b. Parking is provided on-street, behind
  buildings, and in shared parking lots. Parking
  lots in front of buildings create barriers
  between pedestrians and storefronts and shall be
  discouraged.
• c. Buildings are human scaled in design with a
  range of architectural features, which create an
  attractive and varied streetscape. Building
  frontages shall be set near the sidewalk and
  building sizes are generally consistent,
  providing a sense of enclosure for the street,
  except where separations are permitted.
  Architectural detailing and applied decoration
  enliven facades and add texture. Building
  entrances and windows shall be located along
  street frontages to break up blank walls and
  enhance the pedestrian environment.

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TMD Purpose

• 1. Provide a concentrated area for shopping,
  entertainment, business, services and cultural
  opportunities by allowing a mix of commercial and
  institutional uses and establishing physical
  development and design standards that create
  pedestrian oriented development.
• 2. Provide housing opportunities through
  vertically integrated residential uses.
• 3. Promote a mix of uses in a manner that creates
  a stronger pedestrian orientation through design,
  placement and organization of buildings, plazas,
  common public space, and dispersed parking.
• 4. Ensure traditional marketplaces are compatible
  with the overall design objectives of the Plan
  and MGTS.

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West Palm Beach
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Dan Burden, Walkable Communities The Casey
Hawthorne Traffic Routes Equation
(xy)!
of possible routes
(x!)(y!)
The Casey Hawthorne Traffic Routes Equation (only
accounts for one direction)
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The Power of Connected Streets Hawthorne Traffic
Routes Equation
X 3
Destination
Y 4
Origin
Continue enhancing the network 4 x 3 grid yields
35 routes
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FDOTWalkable Communities12 Step Pedestrian and
Bicycle Program

• 1. Provide Continuously Linked Walkways.
• 2. Pedestrian Intersections.
• 3. Americans with Disabilities Act (ADA)
• 4. Signal Placement.
• 5. Illumination.
• 6. Simplify Median Crossings.
• 7. Schools.
• 8. Eliminate Backing.
• 9. Access Management.
• 10. Auto Restricted Zones and Parking Restricted
  Zones.
• 11. Combine Walking with Transit.
• 12. Walkable Land Use Planning.

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1. Provide Continuously Linked Walkways

• Accommodate the elderly, handicapped, children
  and those who chose or desire to walk.
• Recommends a minimum 6 to 7 separation from
  roadways.
• Provide street trees to buffer pedestrians from
  adjacent vehicular traffic.
• Include landscaping, benches, trash receptacles
  and other pedestrian amenities.
• Street furniture and other obstacles shall not
  impede mobility and access.
• - Provide a 50/50 ratio of pedestrian realm to
  automobile use areas for maximum economic
  development.

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2. Pedestrian Intersections

• Provide street crossings which accommodate the
  physical abilities of pedestrians.
• Maximum crossing width should be 48.
• Roadway geometry to dictate turning speed .
• Note Oftentimes turning radius is dictated by
  truck or fire rescue vehicular access. This does
  not preclude the use of defined pedestrian areas,
  with a transitional marked zone to discourage
  high speed turns.

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6. Simplify Median Crossings.

• Additional pedestrian crossing areas can be
  created mid-block thru the use of raised medians
  designed expressly for pedestrian crossings.

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12. Walkable Land Use Planning.

• New and in-fill land use development should
  favor walking over driving. Traditional
  Neighborhood Design (TND), grid, Planned Mixed
  Unit Development (PMUD) roadway systems, Transit
  Oriented Development Design (TOD), neighborhood
  schools, pocket parks, and neighborhood stores
  should predominate land use codes, ordinances and
  regulations. Places to sit should be provided on
  retail blocks and along corridors where people
  walk through their communities. Businesses
  should front on sidewalks with parking located
  alongside or behind stores. Shared use parking
  lots should be emphasized wherever possible.

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Block StandardsKey Elements

• Streets and Alleys.
• Streetscape.
• Dimensions.
• Parking Lots Access and Placement.
• Connectivity.
• Building Placement.

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StreetandAlleyStandards
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Street StandardsDimensions and Speeds
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Streets/Streetscapeand Alleys
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Block Standards
TYPICAL BLOCK STANDARD THRESHOLDS TYPICAL BLOCK STANDARD THRESHOLDS TYPICAL BLOCK STANDARD THRESHOLDS TYPICAL BLOCK STANDARD THRESHOLDS TYPICAL BLOCK STANDARD THRESHOLDS
Block Length Block Length Maximum Perimeter Acreage
Minimum Maximum Maximum Perimeter Acreage
FBCI N/A 500 ft. 1,600 ft. 2 acres
TDD 160 ft. 660 ft. N/A 10 acres
Example 160 ft. 660 2,000 ft. 5 acres
Allows 750 ft. max with mid-block pedestrian pass thru. Allows 750 ft. max with mid-block pedestrian pass thru. Allows 750 ft. max with mid-block pedestrian pass thru. Allows 750 ft. max with mid-block pedestrian pass thru. Allows 750 ft. max with mid-block pedestrian pass thru.
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Pedestrian Perspective
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Connectivity

• Interconnected Streets.
• Cul-de-sacs and Dead End Streets Prohibited.
• Stub Connections Required.
• New Streets/Alleys to Align with Existing.
• All Buildings Must Face a Street.

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Typical Target Corridorand FLU Patterns
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Typical Target Corridor Illustration
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Becker Road Linear Redevelopment
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Traditional Block Structure
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Retrofitting Vacant Lots andExisting Developments
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Typical Linear Commercial Corridor
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Addition of Street Trees and Other Streetscape
Features
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Implementation of Policy 1.2-l
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DOA Affected Areas
Existing
Infill
Parking Structure
Usable Open Space
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Discussion Points

• Streets and Alleys.
• Applicability.
• Connectivity.
• Exemptions.
• Block Dimensions (Thresholds).
• Where do the Pieces Fit?
• Buildings and Uses.
• Parking.
• Open Space.
• Landscaping.
• Drainage.
• Retrofitting.