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WCISA 2013 Streets

Indian Wells, CA, May 10, 2013

Dan Staley

on 3 May 2013

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Transcript of WCISA 2013 Streets

Dan Staley
danstaley.net Introduction Stormwater Property/QOL Policies - Advocacy Cognitive Background
Streets History
Streets Background Public
Health Cognitive Psychology Landscape
Architecture Transportation changes mean more
employment the built
affects public
health built environments
can affect our
moods and thought
processes Urban Planning we can purposefully plan and design supportive environments Stormwater and Safety
New and Retrofit
Commercial and Residential One route choice Social Science we are healthier with places to walk TO,
especially to greenspaces with trees Post - WWII Cognitive:
Built environment important for public and individual mental health
Greenery matters for physical activity and mental state: "nearby nature"
Place matters Streets:
Designs changed with increased automobile use
Automobility design considerations replaced all other factors - "throughput"
Many unintended consequences
Returning to older considerations Historical Tilted Grid: 23.5 Degrees North from East Calgary Cheyenne Toronto Ottawa Streets and Layouts Matter A change over time Places Matter:
Street network important to functioning built environment And for property values New attention to importance of streets and street design Low Impact Development
Green Infrastructure
National Pollutant Discharge Elimination System Modern Approaches Local guidance LID is a valid approach to lessen runoff effects Green Infrastructure What is the Transportation and Stormwater Network For?
Impervious Surfaces Should Be Mitigated
Street Design Changes
Public Finance and Infrastructure Modern Approaches Injury accidents per mile, per year Opportunity Modern design = more congestion What's it for? Trees and Economics Residential
Traffic Two key factors in
sale price of
are amenities and
canopy cover Street trees may increase rents on rental houses Well-landscaped businesses have more positive
consumer behavior and higher property values ITE paper on street trees
& driver safety Increase property values
Affect neighboring properties
Positive amenity value increases quality of life
Affect drivers and cause them to slow down Street Trees Road Safety
Public Finance
Public Design Road Diet
Complete Street
Multiple Benefits Road Safety Trees are a GIVEN for everyone designing a modern safe street.
Roots are not. Distance required from infrastructre You Must Provide a Visual for Understanding Retrofitting Existing
Streets for Safety Pedestrian safety and permeable pavers Public Health Dept interest Arts District interest Partnerships Root
Needed You Must Provide a Visual for Understanding Street trees have positive spillover effects on adjacent properties Existing Streets on a Road Diet Modern Street Design Terminology (walkable places currently are in demand and command a higher price) Tech Specs Spanish "Laws of
the Indies" Grid U.S. Land Ordinance Grid Mature Plant Size Guidance In Demand FilTerra tree box
for Stormwater Thank you! If it's not in the rules, it won't get built. Planners and policy-makers need to see
visuals to understand good policy (trees
and things that support them are good policy). Planners and policy-makers may not understand
trees are good for public health (trees and
things that support them are good policy). Planners and policy-makers must understand
the short-term costs do not outweigh long-term benefits, and developers do not reap the long-term benefits and will pass the costs on to buyers. Planners and policy-makers probably know little about trees. Don't assume they do! Policy:
Require rooting volume.
Require shading % after X years in parking lots - don't be deterred by measurement problems, they'll be solved. Enforcement is the issue.
Parking lots can get rooting volume simply by taking one parking stall for a medium tree, 2 connected for large trees. Easy calculation.
Detached sidewalks with minimum 6 foot width (medium trees) and 8 foot for large trees. For children's walking safety and property values.
Require woody plants on stormwater retrofits and adequate rooting volume if no underdrain.
Panelized concrete-pervious in commercial pedestrian contexts with utility vaults. Arboriculture and Modern Street Design: Making standards safe for trees May 10th, 2013
0945-1015 Listener-Driven
Hearing different things Facts and information may or may not be compelling Pictures, charts, diagrams are compelling Have your elevator pitch ready to go always Trees provide a lot of benefits, so we should make sure they grow properly by providing a lot of root volume for them.
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