Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Hunter Mill Road and Sunset Hills Road Study-Community Meeting #4

2,140 views

Published on

Hunter Mill Road and Sunset Hills Road Study-Community Meeting #4

June 29, 2016

Published in: News & Politics
  • Be the first to comment

  • Be the first to like this

Hunter Mill Road and Sunset Hills Road Study-Community Meeting #4

  1. 1. Hunter Mill Road and Sunset Hills Road Study Community Meeting #4 Progress Update June 29, 2016 Kristin Calkins Fairfax County Department of Transportation
  2. 2. Presentation Agenda • Project Objectives • Summary of Community Comments • Review of Developed Alternatives • Traffic Analysis Results • Next Steps • Colvin Run Bridge • Questions and Answers 2
  3. 3. Project Objectives • Address existing congestion • Plan for future traffic • Address queuing along Hunter Mill Road and Sunset Hills Road • Improve access to the Dulles Toll Road by minimizing congestion • Maintain Hunter Mill Road’s character by applying context sensitive solutions 3
  4. 4. Project Study Area 4 Intersection ID Intersection Current Intersection Control Type 1 Hunter Mill Road at Sunrise Valley Drive Signalized 2 Hunter Mill Road at DTR EB Ramps Signalized 3 Hunter Mill Road at DTR WB Ramps Signalized 4 Hunter Mill Road at Sunset Hills Road Signalized 5 Hunter Mill Road at Crowell Road Unsignalized (All-Way Stop) 6 Hunter Mill Road at Hunting Crest Lane Unsignalized (Two-Way Stop) 7 Hunter Mill Road at Lake Fairfax Park Unsignalized (Two-Way Stop) 7 6 5 43 2 1
  5. 5. Project Background • Board of Supervisors authorized study as a follow-on study to the Reston Phase I Plan Amendment • Three meetings held thus far: • December 8, 2014: Kick-Off • February 24, 2015: Existing & No-Build conditions and community input on alternatives • May 20, 2015: Analysis Findings • July 2015: Project put on hold at request of community to allow for new capacity analysis methodologies for roundabouts to be adopted by the Transportation Research Board 5
  6. 6. Project Process 24 MONTHS 6 We are Here
  7. 7. Summary of Community Comments • Concern that traffic from Wiehle Avenue may be diverted to Hunter Mill Road • Concern that the signal at Crowell Road may increase delays in the off-peak • Maintain the character of Hunter Mill Road • Main goal of study is to improve Level of Service (LOS) on Hunter Mill Road 7
  8. 8. Summary of Community Comments (Cont.) • Roundabouts preferred at Dulles Toll Road ramps • Widen Hunter Mill Road from eastbound Dulles Toll Road to Sunrise Valley Drive • Concern that improvements may attract more development • Community wants an in-depth review of roundabouts • There should be a mix and match of alternatives 8
  9. 9. Alternatives Developed 9 Crowell Road Sunset Hills Road Sunrise Valley Drive HunterMillRoad WB DTR EB DTR No-Build Crowell Road Sunset Hills Road Sunrise Valley Drive HunterMillRoad WB DTR EB DTR Alt. 1A Crowell Road Sunset Hills Road Sunrise Valley Drive HunterMillRoad WB DTR EB DTR Alt. 1B Roundabout Signal Proffered
  10. 10. Alternatives Developed (Cont.) 10 Crowell Road Sunset Hills Road Sunrise Valley Drive HunterMillRoad WB DTR EB DTR No-Build Crowell Road Sunset Hills Road Sunrise Valley Drive HunterMillRoad WB DTR EB DTR Alt. 2 Crowell Road Sunset Hills Road Sunrise Valley Drive HunterMillRoad WB DTR EB DTR Alt. 3 Signal Proffered
  11. 11. May 2015: 2030 Comparison 11 Intersection Roundabouts Signals No Build Alt. 1A Alt. 1B Alt. 2 Alt. 3 OVERALL LOS AM (PM) Hunter Mill Rd. @ Sunrise Valley Dr. D (D) B (E) B (E) D (D) D (D) Hunter Mill Rd. @ DRT EB Ramps C (C) B (A) B (A) B (B) B (B) Hunter Mill Rd. @ DTR WB Ramps C (E) - B (E) B (D) B (C) Hunter Mill Rd. @ DTR WB Ramps & Sunset Hills Rd. - F (F) - - - Hunter Mill Rd. @ Sunset Hills Rd.* D (D) - - D (C) - Hunter Mill Rd. @ Crowell Rd.** C (C) C (A) - C (C) - Hunter Mill Rd. @ Crowell Rd. / Sunset Hills Rd. - - E (B) - D (C) LOS Standard = LOS D * Alt 2 in new location ** No Build includes the proffered signal at Crowell Road
  12. 12. New Roundabout Methodology • New research resulted in: • Re-assessment of Roundabout Capacity Models for the Highway Capacity Manual • New methodology (adopted January 2016) resulted in an approximate 10-12% increase in roundabout capacity • New model prioritizes movements with higher volumes • Resulting in improved LOS for heavier movements and overall LOS • This study is an operational assessment, not an engineering design. Roundabouts generally have greater ROW impacts 12
  13. 13. Sunrise Valley Drive Intersection 13 Year 2030 HCM 2010 2015 Model Southbound A (A) A (A) Eastbound B (F - 177 sec) B (F - 135 sec) Westbound B (A) E (B) Overall B (E) C (D) Results for AM(PM)  This study is an operational assessment, not an engineering design. Roundabouts generally have greater ROW impacts
  14. 14. Dulles Toll Road Eastbound Ramps 14 Year 2030 HCM 2010 2015 Model Northbound B (B) C (B) Southbound A (A) A (B) Eastbound B (B) B (C) Overall B (A) B (B) Results for AM(PM)  This study is an operational assessment, not an engineering design. Roundabouts generally have greater ROW impacts
  15. 15. Dulles Toll Road Westbound Ramps 15 Year 2030 HCM 2010 2015 Model Northbound A (A) A (A) Southbound B (F - 178 sec) B (F - 109 sec) Westbound B (B) C (C) Overall B (E) B (D) Results for AM(PM)  This study is an operational assessment, not an engineering design. Roundabouts generally have greater ROW impacts
  16. 16. Dulles Toll Road Westbound Ramps / Sunset Hills Road 16 Year 2030 HCM 2010 2015 Model Northbound B (B) B (A) Southbound F - 535 sec (F - 220 sec) F - 98 sec (C) SE-bound B (F - 107 sec) B (E) Westbound C (C) D (F - 100 sec) Overall F – 175 sec (F – 80 sec) D (D) Results for AM(PM)  Data for the new methodology is based off of 4-leg roundabouts.  This study is an operational assessment, not an engineering design. Roundabouts generally have greater ROW impacts
  17. 17. Crowell Road / Sunset Hills Road 17 Year 2030 HCM 2010 2015 Model Northbound B (A) B (B) Southbound F - 339 sec (B) F - 177 sec (A) Eastbound A (B) B (B) Westbound B (B) C (B) Overall E (B) D (B) Results for AM(PM)  This study is an operational assessment, not an engineering design. Roundabouts generally have greater ROW impacts
  18. 18. June 2016: 2030 Comparison 18 Intersection Roundabouts Signals No Build Alt. 1A Alt. 1B Alt. 2 Alt. 3 OVERALL LOS AM (PM) Hunter Mill Rd. @ Sunrise Valley Dr. D (D) C (D) C (D) D (D) D (D) Hunter Mill Rd. @ DRT EB Ramps C (C) B (B) B (B) B (B) B (B) Hunter Mill Rd. @ DTR WB Ramps C (E) - B (D) B (D) B (C) Hunter Mill Rd. @ DTR WB Ramps & Sunset Hills Rd. - D (D) - - - Hunter Mill Rd. @ Sunset Hills Rd.* D (D) - - D (C) - Hunter Mill Rd. @ Crowell Rd.** C (C) C (A) - C (C) - Hunter Mill Rd. @ Crowell Rd. / Sunset Hills Rd. - - D (B) - D (C) LOS Standard = LOS D * Alt 2 in new location ** No Build includes the proffered signal at Crowell Road
  19. 19. 19 Next Steps • Perform a Roundabout Geometric Study • Focusing right-of-way, constructability, & refined geometry • Evaluate New “Mix and Match” Alternative(s) • Further evaluate the feasibility of Sunset Hills Road Realignment • Focusing on alignment & right-of-way • Additional analysis based on Reston Network Analysis volumes for 2050 • Public meeting to update community on work in the fall
  20. 20. 20 Next Steps (cont.) • Select a preferred alternative • Based on analysis and community feedback • Comprehensive Plan Amendment • Public Hearings • Potential Interchange Modification Report/study • If a roundabout alternative is selected as the preferred alternative • Identify funding for the project
  21. 21. 21 Colvin Run Bridge • Bridge is structurally deficient and functionally obsolete • Hunter Mill Road carries 7,900 vehicles daily • Warrants a 2 lane bridge (VDOT considers one lane bridges acceptable for 400 vehicles per day) • Construction will take place based on funding availability • Community outreach will commence once VDOT has acquired funding for the design of the bridge
  22. 22. 22 Question & Answers Kristin.Calkins@Fairfaxcounty.gov http://www.fairfaxcounty.gov/fcdot/huntermillstudy.htm

×