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Operational Analysis of Dulles Toll Road Ramps to Tysons
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Operational Analysis of Dulles Toll Road Ramps to Tysons

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Operational Analysis of Dulles Toll Road Ramps to Tysons …

Operational Analysis of Dulles Toll Road Ramps to Tysons

May 31, 2012

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  • 1. May 31, 2012Operational Analysis of Dulles Toll Road Ramps to Tysons 1
  • 2. Agenda• Review of Boone Blvd. Connection• Review of Progress• Preferred Options• Public and Stakeholder Outreach Schedule• Next Steps 2
  • 3. Boone Boulevard Extension• First step in creating the envisioned street grid and expanded roadway network• Improve connectivity and parcel access due to the loss of the Route 7 service roads• Provides one leg of a parallel road system on both sides of Route 7; Greensboro Drive is the other leg.• Considers context-sensitive solutions• Minimizes Community and Environmental impacts 3
  • 4. Boone Boulevard Extension Recommended Cross Section• 12’ wide landscaped median (or single-left turn lanes as needed)• Two 11’ travel lanes in each direction• 5’ wide bike lane in each direction• 8’ wide parking lane in each direction• 5’-6’ wide landscaped buffer• 8’-10’ wide sidewalk 4
  • 5. Boone Boulevard Extension Recommended Alignment 5
  • 6. Review of Progress• Study Kickoff May 24, 2011• Data Gathering & Analysis June - August 2011• Alternatives Workshop September, 2011• Monthly Progress Meetings Ongoing (Included representatives from FCDOT, VDOT & MWAA)• Selection of Preferred Options September, 2012 6
  • 7. Preferred Options• Developed nine scenarios including providing upgrades to existing Route 7 and Spring Hill Road Interchanges• Improvements to existing Route 7 and Spring Hill Road Interchanges were not cost effective based on the minimal capacity added• Compared three preferred alternatives against the “No Build” Alternative• Measured the Network Performance of each preferred option and compared traffic operations 7
  • 8. Preferred Options DTR & Route 7 DTR & Route 7 2030 No Build Modified Interchange Diversion Diamond (Flyover Ramp) Compare 2030 No Build vs. Preferred Option Preferred Interchange 2030 No Build modification Option Preferred Option 2030 No Build Preferred Option Preferred Option Combined with Combined with Combined with Combined with Boone Blvd. Ramp &Greensboro Dr. Ramp Boone Blvd. Ramp Urban Frontage Road Greensboro Dr. Ramp& Boone Blvd. Ramp & Jones Br. Dr. Ramp & Jones Br. Dr. Ramp 2030 No Build Preferred Option Preferred Option Combined with Combined with Combined with Boone Blvd. Ramp & Greensboro Dr. Ramp Urban Frontage Road Greensboro Dr. Ramp & Boone Blvd. Ramp & Jones Br. Dr. Ramp 8
  • 9. Preferred Options 2030 No Build 2030 No Build Preferred Option Preferred Option Combined with Combined with Combined with Boone Blvd. Ramp &Greensboro Dr. Ramp Urban Frontage Road Greensboro Dr. Ramp& Boone Blvd. Ramp & Jones Br. Dr. Ramp 9
  • 10. Preferred OptionsPreferred Option 1 – Boone Boulevard, Greensboro Drive 10
  • 11. Preferred OptionsPreferred Option 2 – Urban Frontage Road 11
  • 12. Preferred OptionsPreferred Option 3 – Boone Boulevard, Greensboro Drive, Jones Branch 12
  • 13. Pros & Cons of The Options• Cons: – Impacts to RPA (Boone Blvd. Connection) – Impact to Parkland (Boone Blvd. Connection) – Impact to Residential Communities (Boone Blvd. Connection & Urban Frontage Option) – Impact to Dominion electrical substation – Relocation of DTR Administration Building/Facilities – Impact on the Adjacent Developments – Impact on the Aesthetics• Pros: – Reduces traffic volume on existing interchanges – Improves Mobility within Tysons – Effective in handling traffic volumes in and out of Tysons – Provides better distribution of traffic to the future street grid system – Minimizes entry and exit ramps from/to DTR (Urban Frontage Option) – Fits within the urban character of redeveloped Tysons (Urban Frontage Option) 13
  • 14. Traffic Analysis• Measures of Effectiveness Considered: Average Delay / Vehicle Average Speed / Vehicle Total Delay Total Travel Time Merge/Diverge Conditions• Compared all options with the No-Build Condition• Option III showed Improvement in the AM.• Option II showed improvement in PM. 14
  • 15. Next Steps• Tysons Partnership Briefing May 23, 2012• Public Information Meeting May 31, 2012• Evaluate Impacts Summer 2012(Meetings with VDOT, MWAA, Land Owners, Developers & Utilities)• Second Public Information Meeting Fall 2012• Study Completion Winter 2012 15