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Reston Network Analysis: Mid-Buildout Results and Roadway Classifications- April 24, 2017

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Reston Network Analysis: Mid-Buildout Results and Roadway Classifications- April 24, 2017

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Reston Network Analysis: Mid-Buildout Results and Roadway Classifications- April 24, 2017

  1. 1. County of Fairfax, Virginia 1 Reston Network Analysis Mid-Buildout Results & Roadway Classifications April 24, 2017: Public Meeting Kristin Calkins Fairfax County Department of Transportation
  2. 2. County of Fairfax, Virginia Agenda • Study Purpose • Project Progress Overview • 2050 Network & Results • Project Prioritization • Mid-buildout Network & Results • Grid of Streets – Roadway Classifications • Next Steps • Questions and Answers 2
  3. 3. County of Fairfax, Virginia Purpose of Study • Conduct a detailed analysis of the grid of streets to determine: – Number of lanes between and at intersections – How to best serve pedestrians, bikes and transit – Right-of-way needs • Assign urban street types and modal emphasis based on Department of Rail and Public Transportation Multimodal System Design Guidelines • Conduct a phasing analysis to estimate when larger projects are needed 3
  4. 4. Data Collection • Traffic Counts in June 2015 • Travel Time Runs Existing Conditions • Capacity Analysis • Level of Service Test Grid of Streets (2030 & 2050) • Traffic Forecasting Capacity Analysis • Level of Service Mitigation • Signal re- timing • New links • Turn lanes • Additional lanes Roadway Classification • DRPT Design Guidelines • Bike lanes • Sidewalks/ Pedestrian routes • On-Street Parking • Transit Routes Phasing Analysis • Prioritization of larger projects Finalize Grid of Streets (2030 & 2050) Based on: • Advisory Group input • Stakeholder input • Community input Network Analysis Project Process Advisory Group input, Stakeholder input, Community input 4 We are Here
  5. 5. County of Fairfax, Virginia Need for Study Department of Transportation 5 The Reston Master Plan Special Study was a two-phase planning study to identify changes to the Fairfax County Comprehensive Plan to help guide future development in the planned community of Reston and adjoining areas located along the Dulles Airport Access and Toll Road. • The study began in 2009 and concluded in June 2015 after robust and thoughtful community discussions and participation. • A Task Force, comprised of 25 primary members, representing residents, Reston community groups, and property owners guided the study. • 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.”
  6. 6. County of Fairfax, Virginia Reston Phase I Plan Amendment Transportation Guidance Department of Transportation 6 • Maintain a balance between land use and transportation • Ensure pedestrian mobility throughout the Transit Station Areas (TSAs) • Implement the Bike Master Plan for the County, which includes the TSAs • Accommodate an enhanced RIBS and Fairfax Connector service to support rail • Establish a strong Transportation Demand Management (TDM) program in the TSAs
  7. 7. County of Fairfax, Virginia Reston Phase I Plan Amendment Major Road Transportation Recommendations Department of Transportation 7 • An enhanced street network to increase connectivity – Developed by the Reston Task Force • Soapstone Drive Overpass • Town Center Parkway Underpass • South Lakes Drive Overpass • Grade Separate Fairfax County Parkway/Sunrise Valley Drive
  8. 8. County of Fairfax, Virginia 2050 Network & Results (Presented November 7, 2016) 8
  9. 9. County of Fairfax, Virginia Analyzing the Grid • Mitigation was used to achieve Level of Service (LOS) E or better in the Transit Station Areas • Mitigation Measures - Tiered Approach – Tier 1: No Right-of-Way (ROW) impact – Tier 2: Limited ROW impact – Tier 3: Large scale mitigations if needed • Each grid link was initially assumed to be one lane in each direction (with bike/ped facilities as specified in the Comprehensive Plan) Department of Transportation 9
  10. 10. County of Fairfax, Virginia 2050 (Full Buildout) Network 10
  11. 11. County of Fairfax, Virginia Full Buildout Network 11 • All grid links remain one lane in each direction • Widening of Fairfax County Parkway to 6 lanes w/ HOV as lanes 5 & 6 • South Lakes Overpass at Dulles Toll Road • Soapstone Overpass at Dulles Toll Road • Town Center Underpass at Dulles Toll Road • Interchange improvements on Fairfax County Parkway at – Sunrise Valley Drive – Spring Street • Extension of Pinecrest Road
  12. 12. County of Fairfax, Virginia Full Buildout Network (Cont.) 12 • Widening of Fox Mill Road: Reston Parkway to Monroe Street • Widening of West Ox Road: Lawyers Road to Centreville Road • Loop road through Reston South Park & Ride: Reston Parkway to Lawyers Road • Rock Hill Road Overpass at DTR • Extension of McLearen Road: West Ox Road to Reston Parkway • Widening of Monroe Street from Fox Mill Road to Town of Herndon • Reston Parkway Widening: South Lakes Drive to DTR
  13. 13. County of Fairfax, Virginia Full Buildout Network - Signals 13
  14. 14. County of Fairfax, Virginia Problem Locations Department of Transportation 14 • Problem Locations were identified to help track the progress of mitigation measures • 120 seconds of delay was used to identify a problem location – LOS E is 80 seconds and 120 seconds represents 50% more delay than what is acceptable in the Reston TSAs. • Problem locations helped staff understand where more effort would be needed to mitigate the transportation issues.
  15. 15. County of Fairfax, Virginia Department of Transportation 15 2050 Unmitigated Problem Locations
  16. 16. County of Fairfax, Virginia Department of Transportation 16 2050 Tier 1 Problem Locations
  17. 17. County of Fairfax, Virginia Department of Transportation 17 2050 Tier 2 Problem Locations
  18. 18. County of Fairfax, Virginia 2050 Tier 3 Problem Locations 18
  19. 19. County of Fairfax, Virginia Problem Locations Summary 19 Intersections – 120+ Seconds of Delay Intersections 2050 Unmitigated After 2050 Tier 1 After 2050 Tier 2 After 2050 Tier 3 20 10 7 1* With Tier 3 mitigations a significant reduction in the projected number of intersections experiencing delays in excess of 120 seconds can be seen. *Centreville Road & Sunrise Valley Drive: PM 138 seconds in Innovation TSA. • The intersection was also included in the analysis of the Innovation TSA. There is ongoing evaluation of the improvements at this location.
  20. 20. County of Fairfax, Virginia LOS F Intersections Summary Of the 42 key signalized intersections on the major roadways in the Reston TSA, only 5 continue to have 80 seconds of delay or greater after Tier 3 Mitigation. 42 Key Intersections – LOS F Peak Hour 2050 Unmitigated After 2050 Tier 1 After 2050 Tier 2 After 2050 Tier 3 Total 24 11 9 5 20
  21. 21. County of Fairfax, Virginia Tier 3 LOS F Intersections • Fairfax County Parkway at Baron Cameron Avenue – 100 seconds of delay in the PM • Reston Parkway at Sunrise Valley Drive – 92 seconds of delay in the PM • Reston Parkway at South Lakes Drive – 95 seconds of delay in the AM • Reston Parkway at Sunset Hills Road – 83 seconds of delay in the PM • Centreville Road at Sunrise Valley Drive – 138 seconds of delay in the PM (Innovation TSA) 21
  22. 22. County of Fairfax, Virginia Project Prioritization 22
  23. 23. County of Fairfax, Virginia Phasing Analysis 23 • Conducted for Existing Conditions and Full Buildout – AM and PM peak hours • Showed which projects had the greatest benefit in each scenario • Showed hours saved during the peak hours • Used in project prioritization
  24. 24. County of Fairfax, Virginia Inputs to Project Prioritization 24 • Phasing Analysis Results – Time Savings Benefit in near-term and at Plan Buildout • Community Input • Project Readiness • Balanced Funding throughout the plan horizon
  25. 25. County of Fairfax, Virginia Project Prioritization 25 Priority 1 1. Soapstone Overpass 2. Town Center Underpass 3. Reston Parkway Widening 4. Fairfax County Parkway Widening (West Ox to the Dulles Toll Road) Priority 2 1. Sunrise Valley Drive/Fairfax County Parkway Interchange 2. South Lakes Overpass 3. Fox Mill Road Widening Priority 3 1. West Ox Road Widening 2. Monroe Street Widening 3. Pinecrest extension
  26. 26. County of Fairfax, Virginia Mid-Buildout Network & Results 26
  27. 27. County of Fairfax, Virginia Mid-Buildout Scenario 27 • 2030 is a representation of the ‘mid-buildout’ of the Reston TSAs • Assumptions about development levels were provided by the Department of Planning and Zoning (DPZ) • Analysis indicates where improvements may be needed to support a midpoint in development
  28. 28. County of Fairfax, Virginia Assumed Mid-Buildout Improvements 28 • Roadways: – Soapstone Connector – Town Center Parkway Underpass – Reston Parkway – 6 lanes from DTR to South Lakes Drive • Intersection Modifications: – Reston Parkway & Sunrise Valley Drive – Reston Parkway & South Lakes Drive – Reston Parkway & Baron Cameron Avenue
  29. 29. County of Fairfax, Virginia Assumed Mid-Buildout Improvements (Cont.) 29 • New Signals: – Town Center Parkway north of Sunset Hills Road – New Dominion Parkway and Explorer Street – Soapstone Connector and Sunset Hills Road – Reston Station Boulevard Extended and Sunset Hills Road – Sunrise Valley Drive and Town Center Parkway
  30. 30. County of Fairfax, Virginia Assumed Mid-Buildout Grid 30
  31. 31. County of Fairfax, Virginia Estimated Mid-Buildout LOS F Intersections 31 • Fairfax County Parkway at Sunrise Valley Drive – 132 seconds of delay in the AM • Sunset Hills Road at Town Center Parkway – 123 seconds of delay in the AM • Reston Parkway at South Lakes Drive – 143 seconds of delay in the AM • Sunrise Valley Drive at Hunter Mill Road – 121 seconds of delay in the AM • Sunset Hills Road at Hunter Mill Road – 87 seconds of delay in the AM • Sunrise Valley Drive at Preston White Drive/South Lakes Drive – 113 seconds of delay in the PM
  32. 32. County of Fairfax, Virginia Estimated Mid-Buildout LOS F Intersections 32
  33. 33. County of Fairfax, Virginia Mid-Buildout Scenario Summary 33 • Only six intersection operate at LOS F • Improvements in place by 2050 will result in improved LOS • County staff will continue to assess transportation and development in Reston and will modify recommendations as necessary • Annual review with the Reston Transportation Service District Advisory Board
  34. 34. County of Fairfax, Virginia Street Standards/ Multimodal System Design Guidelines 34
  35. 35. County of Fairfax, Virginia Roadway Classifications • Roadways are classified by their character and what type of trips they serve • These trips include vehicle, pedestrian, bike and transit trips • Roadway classifications are influenced by the context of the road’s built environment – Commercial – Residential – Mixed Use 35
  36. 36. County of Fairfax, Virginia Roadway Classifications: Elements • Roadway Classifications provide guidance on: – Medians – Travel lanes – Bike Lanes – On-Street Parking – Landscape Amenity Panels (LAP) – Sidewalks – Building Frontages 36
  37. 37. County of Fairfax, Virginia Roadway Classifications: Types • Through Corridor – Higher speed corridor that connects multiple activity centers. – Speed limit: 35 – 55 mph • Boulevard – Carry high volumes of traffic and allow for greater vehicle volumes. – Speed limit: 30 – 35 mph • Major Avenue – Contain the highest density of destinations, intensity of activity, and mix of modes. Have major pedestrian and street activity. – Speed limit: 30 – 35 mph 37
  38. 38. County of Fairfax, Virginia Roadway Classifications: Types (Cont.) • Avenue – Provide a balance between access to business and residences that front them, carry both vehicle and pedestrian traffic. Pedestrian and bicycle activity is very common as Avenues serves as critical links in the non-motorized transportation network. Avenues are low speed roadways. – Speed limit: 25 – 35 mph • Local Street – Have the lowest speeds and highest access to land use. Local Streets are primarily residential. – Speed limit: 25 mph 38
  39. 39. County of Fairfax, Virginia Roadway Classifications Examples • Through Corridor – Example: Fairfax County Parkway • Boulevard – Example: Baron Cameron Avenue • Major Avenue – Example: Sunset Hills Road & Reston Parkway • Avenue – Example: Town Center Parkway & Reston Station Boulevard • Local Street – Example: Market Street & Explorer Street 39
  40. 40. County of Fairfax, Virginia Grid of Streets Roadway Classifications The Grid of Streets analyzed in the Reston Network Analysis have been classified as either Avenue or Local 40 Example Avenue
  41. 41. County of Fairfax, Virginia Next Steps • Public Comment • Documentation • Final Report Summer 2017 41
  42. 42. County of Fairfax, Virginia Schedule 42 Task Description 1A Land Use and Networks - Task is Complete 1B Traffic Counts - Task is Complete 2A Establish Existing Conditions - Task is Complete 2B Calibrate Against Existing Conditions - Task is Complete 3A2 Analyze Future Conditions (2050) - Task complete advance to Tier 3 Mitigation 3A1 Analyze Future Conditions (2030) 3B Simulation of the Dulles Toll Road 4A Meetings/Presentations 5A Phasing Analysis - Existing Conditions- Ths Task is complete 5B Phasing Analysis - 2050 - Optional 6 Determination of DRPT Guidelines Roadway Classification 7 Documentation 8 Reston Parkway Capacity Improvements 9 Fairfax County Parkway & Spring Street Interchange 10 Fairfax County Parkway & Sunrise Valley Drive 11 Rock Hill Bridge at Sunrise Valley Drive 12A Meetings/Presentations 07 4/174/24
  43. 43. County of Fairfax, Virginia Questions & Comments For questions and comments about the study please contact: Kristin Calkins: Kristin.Calkins@fairfaxcounty.gov (703) 877-5710 http://www.fairfaxcounty.gov/fcdot/restonnetworkanalysis/ 43

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