Sprague & Appleway Corridors Subarea Plan
Subarea Plan Public Review Draft Joint City Council / Planning Commission Study Session February 19, 2008
Overview of the Planning Process
City Council/PC Study Sessions
Draft II (Public Review Draft)
Subarea Plan Contents
The Subarea Plan Book I: Community Intent Book II: Development Regulations Book III: City Actions
Book III: City Actions 3.1 3.2 3.3
The City Center Street Network Improvements Streetscape Improvements
Framework
Connection
t ’ n Ca
r e h t r u F ” d e v o r p m I “ Be
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Overcoming The Fear Of Change
The problems we have created cannot be solved with the same thinking that created them …
“…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
Transportatio n
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Understanding Trip Purpose, Land Use, & Roadway Design 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
"Errandsville" approximately 70% of all trips occur within 3 miles of the household
VEHICULAR SERVICE
Seconds
Large Gain
LIVABILITY
Riverfront Parkway Transportation Urban Design Plan Chattanooga, TN
Riverfront Parkway Looking From Walnut Street Bridge to Market Street Bridge: 2000
Riverfront Parkway –Traffic Flow – Year 2000
Tennessee River
ay arkw P t rfron Rive
19,998 ADT (2,050) AM Peak
13,339 ADT (1,262) AM Peak
3rd Street
19,482 ADT (1,728) AM Peak
Ma bel Ave nue
6th Street
Ge org ia A ven ue Lin dsa yS tre et Ho ust on Str ee t
Chestnut Avenue
4th Street
MLK Boulevard
Riverfront Parkway –Traffic Flow – Year 2005
Tennessee River
ay arkw P t rfron Rive
3rd Street
Ma bel Ave nue
6th Street
Ge org ia A ven ue Lin dsa yS tre et Ho ust on Str ee t
Chestnut Avenue
4th Street
MLK Boulevard
Riverfront Parkway Looking From Walnut Street Bridge to Market Street Bridge: 2000
Riverfront Parkway Looking From Walnut Street Bridge to Market Street Bridge: Vision
Riverfront Parkway Looking From Walnut Street Bridge to Market Street Bridge: 2005
21st Century Waterfront – 2005
Transportation
Challenge
5-lane
3-lane, two-way
DESIGNING A CONTEXT APPROPRIATE SPRAGUE / APPLEWAY CORRIDOR 1. Creating a roadway design that enables a mixed use city center. -
Strengthens businesses along the corridor.
-
Establishes a clear gateway to City and eliminates confusion related to oneway system.
2. Creating a Safe environment for all modes of travel. 3. Balancing regional mobility needs with local access requirements.
Transportation
Options
Transportation Options
Transportation Options
Transportation Options
Transportation Options ! ! ##
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Evaluation &
Recommendations
Evaluation (SRTC changes in the model)
Analysis
Travel Time (min)
Delay Time (min)
Total Travel Time (min)
EB
12.7
6.7
19.0
WB
11.8
11.0
22.8
WB
12.4
2.0
14.4
EB
11.2
2.2
13.4
EB
12.4
2.0
14.4
WB
11.2
2.6
13.8
EB
11.2
5.4
16.6
WB
12.4
2.5
14.9
Existing Conditions
Extended One-Way Couplet
Hybrid (Couplet through auto row)
Complete Two-Way
Travel Time Between Argonne and I-90 Total Travel Time (min)
Extended One-Way Couplet EB
4.4
WB
4.0
Two-Way with Couplet west of Argonne EB
4.5
WB
4.0
Two-Way EB
7.0
WB
4.2
Difference of around 2.5 minutes - EB
Conclusions Livable streets performance measures
Corridor LOS
Travel Times (min)
Vehicle Miles/ Distance Traveled
Multimodal Capacity
Bike/Ped
Access
Business Visibility
Today's Roads
D
22.8
N/A
MEDIUM
MEDIUMLOW
MEDIUMLOW
MEDIUMLOW
Extended One-Way Couplet
B
13.4
HIGHER
LOW
LOWER
LOWEST
LOWER
Two-Way with Couplet West of Argonne
B
13.8
SLIGHTLY HIGHER
MEDIUM
HIGHER
MEDIUMHIGH
HIGHER
Two-Way
C
14.9
LOWER
HIGH
HIGHEST
HIGHEST
HIGHEST
Conclusions Livable streets performance measures
Corridor LOS
Travel Times (min)
Vehicle Miles/ Distance Traveled
Multimodal Capacity
Bike/Ped
Access
Business Visibility
Today's Roads
D
22.8
N/A
MEDIUM
MEDIUMLOW
MEDIUMLOW
MEDIUMLOW
Extended One-Way Couplet
B
13.4
HIGHER
LOW
LOWER
LOWEST
LOWER
Two-Way with Couplet West of Argonne
B
13.8
SLIGHTLY HIGHER
MEDIUM
HIGHER
MEDIUMHIGH
HIGHER
Two-Way
C
14.9
LOWER
HIGH
HIGHEST
HIGHEST
HIGHEST
Recommendations
Complete Two-way Conversion of Appleway & Sprague 1. Helps to enable the City Center
3-lane, two-way
2. Strengthens businesses along the corridor 3. Establishes a clear gateway to City and eliminates confusion related to oneway system 4. Eliminates conflict points 5. Maintains a desirable level of service (LOS C) 6. Worth the additional 2 minutes of delay vs. the Hybrid Alternative.
Staging the Implementation
The corridor today
Stage 1 - $6,000,0000 Establish the Transportation Framework & Enable City Center
Projects: Convert Sprague to two-way between Argonne and University & Reduce Sprague from 7 to 5 lanes between Argonne & University. Convert Appleway to a two-way street from Dishman-Mica to University.
Stage 2 - $14,300,000 Strengthen City Center & Extend the Network
Projects: Extend Appleway from University to Evergreen. Convert Sprague to two-way between University and Evergreen.
Stage 3 - $6,600,000 Give the City Center an Address, Invest in Auto Row
Projects: Convert Sprague to two-way between Argonne & I-90. Convert Appleway to two-way Street from Thierman to Dishman-Mica.
Stage 3 Give the City Center an Address, Invest in Auto Row
I–
90
THIERMAN
SPRAGUE
APPLEWAY
Stage 3 Give the City Center an Address, Invest in Auto Row
THIERMAN
SPRAGUE
APPLEWAY
Remove slip lane and allow eastbound traffic to continue on Sprague
Stage 3 Give the City Center an Address, Invest in Auto Row
THIERMAN
SPRAGUE
APPLEWAY
Extend off-ramp to allow direct access to Sprague
Stage 3 Give the City Center an Address, Invest in Auto Row
THIERMAN
SPRAGUE
APPLEWAY
Restore a 600’ x 250’ (3.5 acre) block to the street network
Stage 4 - $12,900,000 Extend the Network and Continue to Invest in Sprague
Projects: Extend Appleway as a 3 lanes street to Sullivan Reduce Sprague from 7 to 5 lanes between Evergreen and Sullivan.
Stage 5 – Beyond the Planning Horizon Ensure Permanent Success Allow corridor access to I-90 from both Sprague and Appleway
Projects: Construct Roundabout to connect Appleway to Eastbound I-90 on-ramps.
Stage 1 $
6,000,00
$
14,300,00
Stage 3 Give the City Center an Address, Invest in Auto Row $
6,600,00
Stage 4 Give the City Center an Address, Invest in Auto Row $
10,200,00
Establish the Transportation Framework & Enable Cit Stage 2 Strengthen City Center & Extend the Network
Stage 5 Extend the Network and Continue to Invest in Spragu Not Included
PROJECT TOTALS Traffic Realignment and Street Reconstruction Right-of-Way Deficiency
$
37,100,00
