tony sease - engineering & infrastructure
TRANSCRIPT
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Engineering & InfrastructureEngineering & Infrastructure
I. Design & Implementation: A ProcessI. Design & Implementation: A Process
II. Language:II. Language:
a. Engineering vs. NU Planning Languagea. Engineering vs. NU Planning Language
b. Local versus Universal b. Local versus Universal
III.III.Lessons applied to New Town LibertyLessons applied to New Town Liberty
Anthony M. Sease, PE, NCARB www.civitech.com
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The Street
“Every trip begins with a step”
“Life takes place on foot” – Jan Gehl
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The Charter of the New Urbanism
The region: metropolis, city, and town
The neighborhood, the district, and the corridor
The block, the street, and the building
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Sustainable: over what period of time?Equitable: for whom?
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Civitech, Inc. - Patti Banks Associates
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Civitech, Inc. - Patti Banks Associates
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The post-charrette plan
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Following the master plan
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After the charrette
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Pervious pavers planned in March, now installed
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NU planner says:
Language of PracticeCivil engineer hears:
• Slow Streets
What the planner meant:
• 25-35 mph • 10-25 mph
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Health, Safety & Welfare
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NU planner says:
Language of PracticeCivil engineer hears:
• Slow Streets
• Tight centerline radii
• Tight curb radii
• Traffic calmed streets
• Offset intersections
• Street trees
• Houses near the street
• Joint trenching
• Naturally sloped alleys
• Attractive Inlets
• Two-way alleys
What the planner meant:
• 25-35 mph
• 180’ – 200’
• 15’ – 20’
• Speed humps
• 150’ offset
• Trees along the r.o.w.
• 20’ setbacks
• 10’ shared easement
• Straight short profiles
• Smooth concrete
• 18’ paving
• 10-25 mph
• 50’- 89’
• 5’ -15’
• Deflected vistas
• Sidewalks/views align
• Planting strips
• 8’-15’ build-to-lines
• Single trench
• Natural grade
• Civic art
• 11’-12’ lane, no signs
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Defining the Thoroughfares:Integrator A Integrator BNeighbourhood
Connector
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Locally specific‘Local’ versus ‘Universal’ Engineering
Universal items
• Utility Hierarchy
• Typical Utility Practices
• Sewer
• Meter boxes
• Garbage collection mechanism
• Emergency response equipment
• Incident management philosophy
• Stormwater: peaks & frequency
• Soil types/variability/percolation
• Construction materials:asphalt/concrete
• Urban tree species & planting
• Bike accommodation
• Construction techniques/cost
• Street Design
• widths, radii, vehicle tracking
• Final grading
• Basic utilities
• Lot sizes, porches, service, garbage
• Commercial access
• Emergency response ‘network’
• Water as a resource
• Water as civic art
• General sequence of construction
• Preeminence of pedestrian
• Five-minute walk
• Bike/Ped modal splits
• General principals of safety
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Insert image cotton district
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Architecture‘Local’ versus ‘Universal’ Engineering
Engineering
• Design Architect• Architect of Record
• Consulting Engineer
versus:
Design Engineer/
Engineer of Record
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Lessons applied to New Town Liberty
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Lessons applied to New Town Liberty
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New Town Liberty
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Lessons applied to New Town Liberty
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Anthony M. Sease, PE, RA
Civitech, Inc.1107-B West Main Street
Durham, North Carolina 27701919-338-1050