shirley gate road extension - relationsrelations.gmu.edu/.../02/shirley-gate-presentation... ·...
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![Page 1: Shirley Gate Road Extension - Relationsrelations.gmu.edu/.../02/Shirley-Gate-Presentation... · 31.01.2019 · • Braddock Road: 6 Lanes (east of FCP) Build (in addition to No Build)](https://reader036.vdocument.in/reader036/viewer/2022071101/5fdaec0f088b10287b2a5b2b/html5/thumbnails/1.jpg)
County of Fairfax, Virginia
Department of Transportation
Shirley Gate Road Extension
Fairfax Campus Community Advisory
Board
January 31, 2019
![Page 2: Shirley Gate Road Extension - Relationsrelations.gmu.edu/.../02/Shirley-Gate-Presentation... · 31.01.2019 · • Braddock Road: 6 Lanes (east of FCP) Build (in addition to No Build)](https://reader036.vdocument.in/reader036/viewer/2022071101/5fdaec0f088b10287b2a5b2b/html5/thumbnails/2.jpg)
County of Fairfax, Virginia
Project Background• Extends existing Shirley
Gate Road alignment from
Braddock Road to Fairfax
County Parkway
• Comprehensive Plan
improvement since 1991
• Guidance to utilize existing
easements and minimize
impacts to residential
properties to extent feasible.
Department of Transportation
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County of Fairfax, Virginia
Department of Transportation
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Patriot Park
East
Location & Affected Properties
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County of Fairfax, Virginia
History• 1991- Extension added to Comprehensive Plan
• 2006 – Interchanges at Popes Head Road and
Shirley Gate Road Extension added to Comp Plan
• 2014 – Extension added to County’s Six Year
Transportation Project Priorities (TPP)
• 2014 – Study of the Shirley Gate Road Extension
authorized by Board of Supervisors
• 2015 – Sup. Herrity designated a Shirley Gate Road
Extension Stakeholder Group made up of area
property owners to help guide the planning process
Department of Transportation
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![Page 5: Shirley Gate Road Extension - Relationsrelations.gmu.edu/.../02/Shirley-Gate-Presentation... · 31.01.2019 · • Braddock Road: 6 Lanes (east of FCP) Build (in addition to No Build)](https://reader036.vdocument.in/reader036/viewer/2022071101/5fdaec0f088b10287b2a5b2b/html5/thumbnails/5.jpg)
County of Fairfax, Virginia
Department of Transportation
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Purpose and Need• Improve north-south connectivity
• Relieve congestion on segments of the Fairfax County Parkway, Route 29, and Route 123.
• Relieve congestion at Route 123 and Braddock Road
• Delay need for planned grade-separated interchange at Route 123/Braddock Road
• Provide access to Patriot Park East, avoiding entrance off Braddock Road through an established neighborhood and existing wetland area
• Improve access to the west end of the City of Fairfax/Fair Oaks
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County of Fairfax, Virginia
Department of Transportation
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Stakeholder Process• Five meetings held between May and Sept 2015
o Guided development of measures of effectiveness (MOE)
o Provided adjustments to weighting values
• Guided development of updated alignment
Impacts to Adjacent Properties
o Septic Fields, Noise, Storm and Water Quality, Lighting
Impacts on Transportation System
o Traffic Operations, Improvements to Road Network,
Safety
Cost
o Minimize the Cost of Construction
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County of Fairfax, Virginia
Department of Transportation
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Refined
Alignment
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County of Fairfax, Virginia
Department of Transportation
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Fairfax County Parkway Interchange at
Popes Head Road / Shirley Gate Road Extension
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County of Fairfax, Virginia
No Build vs. Build Forecast (2040) Volume Change
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NNOT TO
SCALE
Roadway Segment Daily Volume Change
(2040 Build vs. 2040 No Build)
Volume Increase of More Than 5%
Volume Increase of 0-5%
Volume Decrease of 0-5%
Volume Decrease of More Than 5%
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County of Fairfax, Virginia
Existing, 2040 No Build, and 2040 Build Volumes
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NNOT TO
SCALE
0
(0)
[15,500]
34,000
(33,900)
[34,400]
16,000
(13,900)
[14,500]
39,000
(45,000)
[46,600]
35,000
(54,100)
[50,800]
72,000
(102,000)
[100,500]
71,000
(98,600)
[107,500]
Roadway Segment
Shirley Gate Road Extension
2014 Existing Link Volume (veh/day)
(2040 No Build Daily Link Volume (veh/day))
[2040 Build Daily Link Volume (veh/day)]
XX,XXX
(XX,XXX)
[XX,XXX]
25,000
(26,900)
[24,000]
3,400
(3,800)
[3,400]
44,000
(60,500)
[54,600]
31,000
(42,100)
[34,900]
31,000
(38,400)
[32,300]
7,200
(17,700)
[22,200]
20,000
(26,200)
[29,200]
Network Assumptions:
No Build
• Fairfax County Parkway: 6 Lanes
• Braddock Road: 6 Lanes (east of FCP)
Build (in addition to No Build)
• Shirley Gate Road Extension: 4 Lanes
• Interchange with FCP on Shirley Gate Road
Extension Alignment
66,000
(80,900)
[85,400]
Shirley Gate Road Extended
Corridor Planning Study
1,700
(2,400)
[4,300]
28,000
(45,900)
[45,300]
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County of Fairfax, Virginia
Benefits of Shirley Gate Road Ext.• Reduced traffic volumes, travel times, delay and
traffic congestion along area roadways/intersections
– Braddock Road
– Route 123
– Intersection of Route 123 and Braddock Road
• Benefit Cost Ratio Analysis (2013 County Analysis)
– 36.1 B/C (one of the highest amongst County projects)
Department of Transportation
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County of Fairfax, Virginia
Department of Transportation
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Benefits of Shirley Gate Road Ext.
• Improved safety at Fairfax County Parkway and
Popes Head Road
• Improved access to the west end of the City of
Fairfax/Fair Oaks Area
• Provides proper access to Patriot Park East
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County of Fairfax, Virginia
Cost & Cost Effectiveness• Planning Level Cost Estimate:
$39,500,000 (2014)
• Other Factors:
o congestion relief;
o savings for travel time;
o accident costs;
o emissions; and
o increased access to jobs
Department of Transportation
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County of Fairfax, Virginia
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• Initiate Conceptual Design
• Coordinating with VDOT Fairfax County
Parkway Widening project (US 29 to VA 123)
Ongoing & Next Steps
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County of Fairfax, Virginia
Questions?
Leonard Wolfenstein, AICP
Fairfax County DOT
Project website:
https://www.fairfaxcounty.gov/transportation/study/shirley-
gate-extension
Department of Transportation
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