reston network analysis - community kick-off: feb. 1, 2016

County of Fairfax, Virginia

Department of Transportation

Reston Network Analysis

February 1, 2016Community Kick-Off

Kristin CalkinsFairfax County Department of Transportation


Agenda• Why we are here• Reston Phase I Plan Amendment• Network Analysis process• Concurrent planning efforts in Reston• Public Coordination

– Advisory Group– Stakeholder Group

• Next Steps• Question & Answer

Department of Transportation 2



Study Area


Purpose of Study• Conduct a detailed analysis of the grid of streets and

determine– A finalized grid of streets– Number of lanes between and at intersections– How to best accommodate transit, bikes, and pedestrians– Right-of-way needs

• Assign urban street types and modal emphasis based on Department of Rail and Public Transportation design guide lines

• Examine four specific locations in detail



How we got here:Reston Phase I Plan Amendment



Need for Study


• The Reston Phase I Comprehensive Plan Amendment was adopted by the Fairfax County Board of Supervisors on February 11, 2014.

• The Board follow on motion from the adoption directed staff to: “conduct a detailed evaluation and operational analysis of the enhanced street network shown on the Reston Master Plan, prioritize these improvements, and develop an implementation strategy.”


Need for StudyFollow-on Study to the Reston Phase I Plan Amendment



Reston Phase I Plan AmendmentTransportation Analysis


• Transportation study was done to determine what transportation improvements are needed to support the planned development in the TSAs

• Specific recommendations were made to enhance the transportation network

• Phase I recommended, but did not analyze and optimize the conceptual grid of streets


Reston Phase I Plan AmendmentMajor Transportation Recommendations


• Maintain a Balance between land use and transportation• Ensure pedestrian mobility throughout the TSAs• Bike Master Plan for County, including the TSAs has

been adopted• An enhanced RIBS and Fairfax Connector service to

support rail• Strong Transportation Demand Management (TDM)

program in the TSAs


Reston Phase I Plan AmendmentMajor Road Transportation Recommendations


• An enhanced street network to increase connectivity

• Soapstone Drive Overpass• Town Center Parkway

Underpass • South Lakes Drive Overpass• Grade Separate Fairfax

County Parkway/Sunrise Valley Drive


Reston Phase I Plan AmendmentGrid of Streets


• Conceptual grid of streets was a result of the Reston Task Force

• The three TSAs were examined and had conceptual grids developed by task force members

• These grids were refined by FCDOT staff• The conceptual grid was then included in the

comprehensive plan


Why a GridA grid of streets allows for more options when going from

point A to point B, reducing the demand on streets




Reston Phase I Plan AmendmentGrid of Streets (2)



Wiehle-Reston East Transit Station Area



Reston Town Center Transit Station Area



Herndon Transit Station Area

Data Collectio

n• Traffic

Counts in

June 2015

• Travel Time Runs

Existing Conditi

ons• Cap

acity Analysis

• Level of

Service

Test Grid of

Streets (2030 &

2050)• Traffic

Forecasting Capac

ity Analy

sis • Level

of Servic

e

Mitigation

• Signal re-

timing• New

links• Turn

lanes• Additi

onal lanes

Roadway Classifica

tion• DRPT

Design

Guidelines• B

ike lanes

• Sidewalks/ Pedestrian routes

• On-Street Parking

• Transit Routes

Finalize Grid of Streets (2030 & 2050)

Based on:• Advis

ory Group input

• Stakeholde

r input

• Communit

y input

Phasing Analysis• Priori

tization of

larger projec

ts

Network Analysis Project Process

Advisory Group input, Stakeholder input, Community input


Evaluating the Grid

• Level of Service and Delay at Intersections• Queue Length• Walksheds – pedestrian accessibility• Enhanced connectivity for transit



Transit Oriented Development

• Mixed-use walkable development around Metrorail Stations

• Supported by strong TDM program• Enhanced pedestrian amenities• Increased transit ridership• More bike parking and access• Encourages carpooling• Teleworking




DevelopmentPeak Hour – Future Trips

0-1/4 Mile ¼ to ½ MileBeyond ½

Mile

2030 2050 2030 2050 2030 2050

Office 40% 45% 35% 40% 30% 35%

Residential 40% 45% 35% 40% 20% 25%

Technological Advancement for all Trips

- 7.5% - 7.5% - 7.5%

TDM Vehicle Trip Reduction Goals

Reductions based off of ITE Trip Generation Rates


23

Level of Service (LOS)Delay (s/veh)

LOSSignalized

IntersectionsA ≤ 10

B > 10 - 20

C > 20 - 35

D > 35 - 55

E > 55 - 80

F > 80

• LOS measures peak hour delay at an intersection or how well traffic moves along a roadway.

• LOS E is the standard for the Reston Transit Station Areas


Mitigation Measures• Mitigation reduced delays experienced at intersections• Mitigation reduces vehicle congestion • Mitigation improves the reliability of travel times

through an area (for both buses and vehicles)• Mitigation will be the way we achieve LOS E in the

Transit Station Areas



Mitigation Options• Mitigation Measures - Tiered Approach

– 1st Tier: No right of way impact – 2nd Tier: Some right of way impact– 3rd Tier: Large scale mitigations if needed

– Consultation with Advisory Group and Stakeholders

• Each grid link is initially assumed to be one lane in each direction



Mitigation Measures1st Tier: No Right of Way Impact

•Intersection Reconfiguration– Optimized signal timing and phasing– Lane configuration modification

Westwood Center Dr. @ Route 7 (2013) Westwood Center Dr. @ Route 7 (2015)



Mitigation Measures (Cont.)1st Tier: No Right of Way Impact


•Existing and Potential Future Signals– Adding/removing traffic signals– Adding/modifying stop control– Modifying Parking

Westwood Center Dr. @ Sheraton Tysons Dr. (2015)

Westwood Center Dr. @ Sheraton Tysons Dr. (2013)



Mitigation Measures2nd Tier: Some Right of Way Impact

• Turn lanes– Left and Right turn lanes– Add storage– Reduces queuing on to through movement

• Additional through lane• Additional grid link


Mitigation Measures3rd Tier: Alternative Intersection Treatment

• Median U-Turn/Superstreet– Eliminate left turn movement for side streets– Increases thru movement green time– Additional needed ROW to provide turn radius

Department of Transportation29


Mitigation Measures3rd Tier: Large Mitigation Measures

• Underpass/Overpass– Provides for an uninterrupted thru movement

• Only done in close coordination with Advisory Group and Stakeholders after all other mitigation measures have not worked

Department of Transportation30


Relevant Reston Planning Efforts



On Going Planning Efforts in Reston



DRPT Multimodal

Design Guidelines

Reston Bikeshare

Guidelines for How to Develop

in Reston

Soapstone Connector

Silver Line Phase II

Reston Funding

Plan Rezoning Cases


Reston Funding Plan


• The Reston Phase I Comprehensive Plan Amendment was adopted by the Fairfax County Board of Supervisors on February 11, 2014.

• The Board follow on motion from the adoption included the Planning Commission recommendation to conduct: “an inclusive process to prepare a funding plan for the transportation improvements recommended in the Reston Master Plan and report with its recommendations. The funding plan should include arrangements for financing the public share of Reston infrastructure improvements and facilitate co-operative funding agreements with the private sector. The PC strongly believes that public and private investment in Reston is both critical and responsible for ensuring Reston’s future success”


Reston Funding Plan (Cont.)• The plan focuses on how to best fund projects in the

Reston Transit Station Areas • Projects included in the plan are those recommended in

the Reston Phase I Plan Amendment • The plan will span 40 years (FY2015 - FY2054)• The plan will build on priorities identified as part of the

Network Analysis • The plan will determine funding allocation for projects



Reston Funding Plan Projects



Reston Funding Plan Projects (Cont.)• DTR Crossing at Soapstone Overpass• DTR Crossing at Rock Hill Road Overpass• DTR Town Center Parkway Underpass• South Lakes Drive Overpass• Route 286 DTR to West Ox Widening• Route 286 at Sunrise Valley Drive (Interchange)• Reston Parkway Widening• Fox Mill Road Widening• West Ox Road Widening• Monroe Street Widening• Pinecrest Road Extension• McNair Farms Drive Extension/Widening



Shared Funding• Public and private investment in Reston is necessary to

ensure Reston’s future success. • Public Sector funding will come from federal, state, local,

and regional sources.– Multiple Sources for each type

• Private sector funding can come from:– Proffers– Contributions to a Road Fund (per square foot/per dwelling unit)– In-kind Contributions



Public Involvement



Advisory Group Mission Statement


• Serves as forum for the Fairfax County Transportation staff to receive input and feedback from residents and property owners/developers on the Reston Network Analysis

• Helps County staff shape the future multi-modal grid of streets within the Reston Transit Station Areas (TSAs)

• Provides input on the Reston Funding Plan• Provides feedback to the community about the plansThe full mission statement can be found at: http://www.fairfaxcounty.gov/fcdot/restonnetworkanalysis/advisorygroup.htm


Advisory Group• Andy Sigle - Chair• Delores Bailey• Tim Cohn• Cate Fulkerson - RA• Robert Goudie - RTC• Liana Kang


• Bill Keefe - RCC Board of Governors

• Mark Looney - Reston Chamber

• John Mossgrove• Maggie Parker - Comstock• Matt Valentini - JBG


Process with Advisory Group• Regular meetings: Monday evenings as

scheduled• Sounding board for the project• Opportunity to hear community and

property owner opinion in dialogue• Advises staff of what community and

developer opinions are of different characteristics of the project



Stakeholder Group• Property Owners, traffic consultants and

interested parties in the Reston Transit Station Areas

• More technical review of information



Process with Stakeholders• Regular meetings: Friday Mornings as

scheduled• Inclusive, collaborative process• Full access to information • Analyze suggestions• Many iterations of testing alternative mitigation

measures• Focus is cost-effectiveness



Process with Public

• Meetings at key project milestones• Ability to comment at public meetings and

on project website• All other meetings are open to the public



Next Steps• Apply 1st Tier of mitigation and brief

Stakeholders Group• Develop 2nd tier mitigation measures for

problem locations to discuss with Advisory Group and Stakeholders Group

• Public Meeting on 2050 progress



Questions & Comments


For questions and comments about the study please contact:

Kristin Calkins: [email protected](703) 877-5710

Project website: http://www.fairfaxcounty.gov/fcdot/restonnetworkanalysis/

reston network analysis - community kick-off: feb. 1, 2016

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