Juniper Lane Connectivity Study: August 1, 2018

1. County of Fairfax, Virginia
Department of Transportation
Juniper Lane Connectivity
Study
August 1, 2018

2. County of Fairfax, Virginia
Meeting Agenda
• Introductions
• Presentation
• Q/A & Discussion
Department of Transportation
2

3. County of Fairfax, Virginia
Study Background
• Seven Corners Community Business
Center (Plan Amendment 2013-I-B2)
adopted July 28, 2015
– Big Picture: Vision for a walkable, bikeable,
“village” atmosphere with trees, pleasant
streetscapes, and outdoor dining space.
Department of Transportation
3

4. County of Fairfax, Virginia
Study Background
• Community concern about transportation
impacts associated with new development
– Traffic, parking
• Comprehensive Plan Text:
– Options to evaluate should include closing Juniper
Lane, extending Nicholson Street to Juniper Lane,
and realigning Juniper Lane at its connection to
Patrick Henry Drive
– Analysis should identify options to maintain access
between Juniper Lane and Patrick Henry Drive
Department of Transportation
4

5. County of Fairfax, Virginia
Study Background
• 10 Follow-On Motions approved
– Follow-On Motion #9: Directs staff to conduct
a traffic analysis of the roadway network in the
vicinity of Juniper Lane and Patrick Henry
Drive in order to identify strategies to limit cut-
through traffic and reduce traffic impacts
generated by future development to the
surrounding neighborhoods.
Department of Transportation
5

6. County of Fairfax, Virginia
Study Background
• This study is being done to achieve a
consensus on an traffic management
approach for when Land Unit C
redevelops
– There are no redevelopment proposals at this
time
Department of Transportation
6

7. County of Fairfax, Virginia
Study Background
Department of Transportation
7
Land Unit C

8. County of Fairfax, Virginia
Study Background
Department of Transportation
8
Comprehensive Plan concept for Land Unit C (Leesburg Pike Village)

9. County of Fairfax, Virginia
General Study Area
Department of Transportation
9
Sears

10. County of Fairfax, Virginia
Community Meetings
• Tonight’s presentation covers the scope of
the study
– Not results
• Future meeting(s) will cover results
– Time and Date to be determined, likely this
Fall
Department of Transportation
10

11. County of Fairfax, Virginia
Work Plan
• Data Collection and Evaluation
• Assessment of Existing Conditions
• Assessment of Mixed Use Development
• Identify Preferred Scenario
• Final Report
Department of Transportation
11

12. County of Fairfax, Virginia
Schedule
Department of Transportation
12
Month M J J A S O N D
Data Collection and Evaluation
Assessment of Existing Conditions
Assessment of Mixed Use Development
Identification of Preferred Scenario
Final Report

13. County of Fairfax, Virginia
Data Collection and Evaluation
• Collect traffic data
– Counts at study intersections
– Geometric and signal timing
– Traffic analysis files (Synchro)
Department of Transportation
13

14. County of Fairfax, Virginia
Study Intersections
Department of Transportation
14
Sears

15. County of Fairfax, Virginia
Existing Conditions
• Level-of-service (LOS) analysis for the
study intersections
– Weekday, AM/PM peak hours
• Assess pedestrian, bicycle, and transit
conditions
– Identify desire lines,
barriers, issues
Department of Transportation
15

16. County of Fairfax, Virginia
Level of Service (LOS)
Delay (s/vehicle)
LOS Signalized Intersections
A ≤ 10
B > 10 - 20
C > 20 - 35
D > 35 - 55
E > 55 - 80
F > 80
• LOS measures how well traffic
moves along a roadway or how
much delay (s/vehicle) exists at an
intersection during the peak hours
• LOS D is the Comprehensive Plan
acceptable LOS standard during
the peak hours
12

17. County of Fairfax, Virginia
Future Land Use for Land Unit C
• Mixed Use Development
• From the Comprehensive Plan:
– 129K SF of single-family attached
– Up to 275K SF for multifamily residential
– 50K SF of neighborhood-serving office
– 40K SF of neighborhood-serving retail
– 45K SF of entertainment
Department of Transportation
17

18. County of Fairfax, Virginia
Mixed Use Development
• Assess trip generation
– Based on land use type & size
• Estimate travel patterns
– Traffic data, field observations
– Used to consider rerouting effects on roadway
network
Department of Transportation
18

19. County of Fairfax, Virginia
Mixed Use Development
• Assess net change in traffic compared to
current conditions
– Assign net new trips to intersections based on
travel patterns
• Level-of-service (LOS) analysis for the
study intersections
– Weekday, AM/PM peak hours
Department of Transportation
19

20. County of Fairfax, Virginia
Review Concepts Developed by
Citizen Working Group
• 8 total concepts
– Includes the network shown in the
comprehensive plan and 7 alternative
configurations
• Varying levels of connectivity
Department of Transportation
20

21. County of Fairfax, Virginia
Existing 2018

22. County of Fairfax, Virginia
Currently shown in Comprehensive Plan
Add road Remove road

23. County of Fairfax, Virginia
Option 1: Nicholson Street extension to Juniper Lane, re-align Juniper Lane intersection
with Patrick Henry Drive, connect Juniper Lane and Sears Site with turn restrictions to
Juniper Lane from Sears Site
Add road Remove road

24. County of Fairfax, Virginia
Option 2: Nicholson Street extension to Juniper Lane, connect Juniper Lane and Sears
Site with turn restrictions to Juniper Lane from Sears Site
Add road Remove road

25. County of Fairfax, Virginia
Option 3: Connect Juniper Lane and Sears Site with turn restrictions to Juniper Lane from
Sears Site
Add road Remove road

26. County of Fairfax, Virginia
Option 4: Re-align Juniper Lane intersection with Patrick Henry Drive, connect Juniper
Lane and Sears Site with turn restrictions to Juniper Lane from Sears Site
Add road Remove road

27. County of Fairfax, Virginia
Option 5: Re-align Juniper Lane intersection with Patrick Henry Drive
Add road Remove road

28. County of Fairfax, Virginia
Option 6: Nicholson Street extension to Juniper Lane, close Juniper Lane
Add road Remove road

29. County of Fairfax, Virginia
Option 7: Comprehensive Plan Option
Add road Remove road

30. County of Fairfax, Virginia
Option 8: Close Juniper Lane
Add road Remove road

31. County of Fairfax, Virginia
Preferred Scenario
• Develop high-level pros/cons
– Including potential cut-through traffic, traffic
operations, and connectivity
• Identify 3 most promising scenarios
– Refine concepts
– Further assess strengths/weaknesses
– Produce illustrations/renderings
Department of Transportation
31

32. County of Fairfax, Virginia
Next Steps
• Continue work on assessment of traffic
conditions
• Assess roadway scenarios
• Develop recommendations
• Present recommendations
• Finalize Report
Department of Transportation
32

33. County of Fairfax, Virginia
Questions/Discussion
• John King
– Phone: 703-877-5840
– E-mail: john.king2@fairfaxcounty.gov
Department of Transportation
33