Making Good Cities Ian Lockwood Glatting Jackson

Making Good Cities
Ian Lockwood
Glatting Jackson
Transportation Concerns
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1 way pairs
Traffic jams
Pedestrian connections
Poor Sidewalks
Traffic Speed
Less one way streets
Intimidating streets for pedestrians, bikes
Walkability- safety, landscaping, signage
Transportation Concerns
•
•
•
•
•
•
•
•
1 way pairs
Traffic jams
Pedestrian connections
Poor Sidewalks
Traffic Speed
Less one way streets
Intimidating streets for pedestrians, bikes
Walkability- safety, landscaping, signage
Vehicle Speed
Walkability/Design
Vehicle Capacity
Overcoming
The Fear
Of Change
The problems we
Have created cannot be
Solved with the same
Thinking that created them….”
Conventional Development Cycle
INPUTS
•Auto Oriented Business
•Single Use Zoning
•Single Family Residential
OUTCOMES
•Wider Roads
•Induced Traffic
•More Traffic
Land
LandUse
Use
Planning
Planning
GROWTH
GROWTH
OUTCOMES
•Isolated Neighborhoods
•Multiple Automobile Trips
•Poor Mobility
•Difficult Walking
GROWTH
GROWTH
Transportation
Transportation
Planning
Planning
INPUTS
•Traffic Demand
Forecasting
•Congestion
•LOS
Healthy Development Cycle
INPUTS
•Diversity of Business
•Mixed Use Zoning
•Diversity of Residential Units
•Context Sensitive Design
•Community Involvement
Land
LandUse
Use Community
Transportation
CommunityTransportation
Planning
Planning
Planning Planning
Planning
Planning
OUTCOMES
•Healthy Neighborhoods
•Choices of Transportation
•More Open Space
•Sense of Place
•Sense of Community
OUTCOMES
SMART
SMART
GROWTH
GROWTH
•More Walking &
Bicycling
•Increased Access
“…the possible benefits of
required seat belts would not
justify the costs to the
manufacturers and the public.”
1970
“…the possible benefits of
required seat belts would not
justify the costs to the
manufacturers and the public.”
National Highway Traffic Safety Administration, 1970
Mix Use?
Trip Purpose – Percentage of Total Trips
Trip Type
% By Trip Type
---------Work
---------18.0%
Work Related
2.6%
Shopping
Doctors & Dentist
Family & Personal
Church & School
Social Recreational
Other
20.2%
1.5%
24.2%
8.8%
24.5%
0.2%
100.0%
Source:1995 NPTS: Federal Highway Administration & New York Times
The largest responsibility lies with how we develop & redevelop our cities
.
Connected Street Networks
Grid
Grid & Squares
Web
Radial
Irregular
Curvilinear
Conventional Suburban Development
75 units/acre
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K Mart
Lee Road
Extension
Mixed Use
Redevelopment
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W.P.V.
Development
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Residential
Redevelopment
Livability and Its Consequences
Existing Network
Future Network
Amtra
k
n
ba
Ur rd
9 va
. 2 le
Rt Bou
US 1
Abercorn Street: Landmark Historic District
10.4 Miles of Streets
Capacity = 2 Lanes Interrupted By Squares
Density = 80,000 SF per Acre
Abercorn Street: Retail Mall District
3.3 Miles of Streets
Capacity = 10 Lanes
Density = 18,000 SF per Acre
“Circle to Square”
Vision Plan
• An at grade
“parkway”
• New network
connections to
provide parallel
routes to 202 and 31
• Work with property
owners to manage
access and support
approved
development plans
New Network Plan
“Circle to Square”
Vision Based Results
Model Based Results
Vision Based Results
LOS B
Model Based Results
LOS C
Why Are Manatee and 6th One Way?
Because We Need The Capacity?
Because It’s Faster?
Because It’s Safer?
Because It Helps Development?
Not All Trips Have The Same Ends
32%
51%
17%
If you were to lower speeds in Downtown Bradenton by
10 MPH, it would result in 11 seconds of additional travel time
5 Seconds
3 Seconds
3 Seconds
Visibility on One-Way Streets
Big Road
Drive Fast
Summary:
Summary:
1. Good Bones
Summary:
1. Good Bones
2. Build to Street
Summary:
1. Good Bones
2. Build to Street
3. Design Speed Appropriate
Summary:
1.
2.
3.
4.
Good Bones
Build to Street
Design Speed Appropriate
Design in Context
Summary:
1.
2.
3.
4.
5.
Good Bones
Build to Street
Design Speed Appropriate
Design in Context
Density and Mix