Planning Committee May 9, 2017 Evolution of Suburban Development - - PowerPoint PPT Presentation

Planning Committee May 9, 2017

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Evolution of Suburban Development

Older Suburbs (Pre-Amalgamation) Newer Suburbs (Recent years) Provincial Growth Management Direction

Generally weak provincial direction, with reliance on municipal policies and local business culture Strong provincial direction towards compact, well connected, pedestrian and transit-oriented communities

Land Cost

$ $$$

Density

20-25 units per hectare 34-40+ units per hectare

Yield (Net-to-Gross Ratio)

61% net (39% public lands) 50% net (50% public lands)

Street Network

Arterial grid, curved collector and local streets, cul-de-sacs Modified and offset grid for better connectivity

Dwelling Types

Predominantly singles, some semi-detached and townhouse Increased share of townhouses and introduction of back-to-back townhouses, stacked townhouses, and low-rise apartments

Infrastructure Costs

$ $$$

Street trees

Generally medium size Generally small size

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Suburban Challenges

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 Building Better and Smarter Suburbs (BBSS) initiated in

late 2013 to resolve these suburban challenges while improving land efficiency and liveability

 BBSS Strategic Directions and Action Plan report

approved at Planning Committee in March 2015

Building Better and Smarter Suburbs

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Infrastructure Standards Review

 Re-examination of infrastructure standards to find

efficiencies and reduce lifecycle costs for City and taxpayers

 Address concerns from Development Industry  Agreement that infrastructure cost savings for

Development Industry would offset the amended Transit Development Charge By-law

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 BBSS and ISR were identified as Term of Council

Strategic Initiatives

 BBSS and ISR consolidated in Fall 2015  Multi-Departmental, Industry and stakeholder

initiative

BBSS-ISR Consolidation

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BBSS Directions in CDPs

Completed: Riverside South, Kanata North

• Ongoing: Mer Bleue, Barrhaven South

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BBSS Schools

Working Group with four school boards aiming to:

Co-locate schools and parks to promote shared facilities and improved land efficiency Minimize land requirements through reduced setbacks and parking requirements and by placing school bus lay-bys in ROW Promote active transportation and safety

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BBSS Parks

Revisions to Park and Pathway Development Manual: New park typologies (e.g. woodland parks and urban parkettes) to support BBSS community design directions

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Tree Planting in Clay Soils

 Revising policy to allow for more and larger trees in certain sensitive marine clay soils with more detailed geotechnical information

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BBSS Traffic Calming

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16.5m and 18m Cross-Sections

4 party joint utilities trench agreement resolves spatial conflicts, improves construction coordination, and will result in more trees

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Arterial Cross-Sections

Eliminated medians, cycle track in boulevard, and reduced width of arterials by average 5m

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Transportation

OC Transpo: included at pre-consultations for development applications Guidelines for mini-roundabouts: Pilot project successfully completed for mini-roundabouts at minor collector / local residential roads

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Stormwater Management

Amended sewer design guidelines to eliminate dry ponds and allow for smaller pipe sizes

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Water Demand Design Standards

Daily design rates reduced from 350 to 280 litres/capita/day

• Using same size pipe, on average allows 25% more units
• Expected cost savings of 25-30% on major trunk systems

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Rear Yard Catch Basins

New standard has been reviewed and approved by water/wastewater working group

• Eliminate need for catch basin in rear yard
• Avoidance of operation and maintenance costs

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Pump Stations

Reviewed pump station redundancy and overflow standards

• Results in average cost savings of $140/unit
• Reduced operation and maintenance costs

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ISR Financial Results

 Long-term maintenance and replacement cost

savings to City and taxpayers without impacting Level of Service

 Cost savings from revised infrastructure standards

are estimated at $1,837 per unit

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Financial Analysis - Infrastructure Standards

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Financial Analysis - Yield

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Early Implementation

Mattamy Abbottsville (Fernbank, Kanata)

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Looking Forward: BBSS

• Review remaining street cross-sections (collector and

local streets)

• Ongoing discussions with Schools Boards to develop

individual MOUs and a Zoning By-law Amendment

• Update Urban Design Guidelines for Greenfield

Neighbourhoods

Timing: Finalized by Q1 2018

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Looking Forward: ISR

• Re-examine location of service laterals to maximize

space for trees

• Re-evaluate Fire Underwriter Standards, including Level
• f Service, water pressure, pipe sizes and hydrant spacing
• Review policies for possible sump pump use in new

subdivisions Timing: Finalized by Q4 2017

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Thank You