Balls Hill Road & Old Dominion Drive Roadway Spot Improvement - Community Information Meeting
•Download as PPT, PDF•
0 likes•2,022 views
This document summarizes a presentation given by the Fairfax County Department of Transportation regarding plans to improve the intersection of Balls Hill Road and Old Dominion Drive. It discusses the existing poor traffic conditions at the intersection, as well as 4 alternatives to improve it: building a T-intersection (Alt A), installing a roundabout (Alt B), adding dedicated turn lanes (Alt C), or improving the T-intersection design (Alt A.1). It provides details on how each alternative would impact traffic flow, costs, property impacts, and presents preliminary cost estimates ranging from $12.1M to $15M. Public feedback on the alternatives was requested by July 13th, with project completion planned for fall 2024.
Recommended
Recommended
More Related Content
What's hot
What's hot (11)
Similar to Balls Hill Road & Old Dominion Drive Roadway Spot Improvement - Community Information Meeting
Similar to Balls Hill Road & Old Dominion Drive Roadway Spot Improvement - Community Information Meeting (20)
More from Fairfax County
More from Fairfax County (20)
Recently uploaded
Recently uploaded (8)
Balls Hill Road & Old Dominion Drive Roadway Spot Improvement - Community Information Meeting
- 1. County of Fairfax, Virginia Department of Transportation Balls Hill Road & Old Dominion Drive Roadway Spot Improvement (Intersection Alternative Study) Cooper Middle School June 28, 2018 Presentation to Start at 7:15 P.M. Project Manager – Gibran Abifadel
- 2. County of Fairfax, Virginia Department of Transportation 2 1. Project Location and Purpose 2. Project Background 3. Existing Conditions 4. Level of Service 5. Crash Data 6. Developments 7. No-Build Conditions 8. Intersection Improvement Alternatives (Alts. A-C & Alt. A.1) 9. Project Schedule and Funding 10. Questions and Answers Agenda
- 3. County of Fairfax, Virginia Department of Transportation 3 Add zoomed in aerial w/labels BallsHillRd. OldDominionDr. Project Location
- 4. County of Fairfax, Virginia Project Background • Partial funding for alternative analysis from the Transportation Priorities Plan in 2014 for $200,000 • Study started March 2016 • Conceptual design and analysis of four alternatives Department of Transportation 4
- 5. County of Fairfax, Virginia Department of Transportation 5 • Improve traffic flow of the intersection through better configuration, signal operations, accessibility, & safety. Project Purpose
- 6. County of Fairfax, Virginia Department of Transportation 6 1. Weekday AM Peak Hour – Example of WB of Old Dominion Drive Queueing 2. Old Dominion Drive looking northwest 3. Balls Hill Road looking north 1 2 3 Existing Conditions
- 7. County of Fairfax, Virginia • Poor intersection operations • Back-ups in the A.M. & P.M. peak periods • Poor sight distance at all legs of the intersection • Left turns act as U-turns from Old Dominion Drive onto Balls Hill Road • Right turns act as U-turns from Balls Hill Road onto Old Dominion Drive Department of Transportation 7 Existing Conditions
- 8. County of Fairfax, Virginia Department of Transportation 8 Level of Service Control Delay (seconds per vehicle) Signalized Intersection Unsignalized Intersection A ≤ 10 ≤ 10 B >10 and ≤20 >10 and ≤15 C >20 and ≤35 >15 and ≤25 D >35 and ≤55 >25 and ≤35 E >55 and ≤80 >35 and ≤50 F > 80 > 50 LOS Criteria - Highway Capacity Manual 2010 Level of Service (LOS) Overview
- 9. County of Fairfax, Virginia Department of Transportation 9 AM Peak hr.: 7:45 AM to 8:45 AM PM Peak hr.: 5:00 PM to 6:00 PM Existing Conditions SCENARIO AM LOS & Overall Intersection Delay PM LOS & Overall Intersection Delay Existing - 2016 F 209.3 seconds F 207.5 seconds
- 10. County of Fairfax, Virginia Department of Transportation 10 2010-2015 - 8 Total Crashes 38% - Angle 25% - Rear – End 25% - Fixed Object Off Road 12% - Head-on Crash Data – Balls Hill Road
- 11. County of Fairfax, Virginia Department of Transportation 11 2010-2015 - 21 Total Crashes 38% - Fixed Object Off Road 25% - Angle 25% - Rear – End 10% - Head-on 2% - Deer Crash Data – Old Dominion Drive
- 12. County of Fairfax, Virginia • Two developments have been approved along the corridor. – Mehr Farms currently under construction – Summerstone was approved in April 2018 • Both of these developments are by-rights • Potential for property on the west of the intersection to develop in the future Department of Transportation 12 Developments
- 13. County of Fairfax, Virginia Department of Transportation 13 Developments Mehr Farms Proposed Summerstone Mehr Farms Summerstone
- 14. County of Fairfax, Virginia Department of Transportation 14 SCENARIO AM LOS & Overall Intersection Delay PM LOS & Overall Intersection Delay No-Build - 2040 F 221.1 seconds F 210.5 seconds No-Build Level of Service and Delay • If we do nothing…
- 15. County of Fairfax, Virginia Pros •Keeps historic look •No Construction •Potential retiming effort by VDOT •No right-of-way acquisition or easements Cons •Increased congestion and aggravation for residents and through traffic •Does not solve delay/queuing issue Department of Transportation 15 Preliminary Cost Less than $20K (by VDOT) No-Build – Alternative
- 16. County of Fairfax, Virginia Department of Transportation 16 Alternative A – T-Intersection
- 17. County of Fairfax, Virginia Department of Transportation 15 Alternative A – T-Intersection (Northern Intersection)
- 18. County of Fairfax, Virginia Department of Transportation 16 Alternative A – T-Intersection (Southern Intersection)
- 19. County of Fairfax, Virginia Department of Transportation 19 SCENARIO AM LOS & Overall Intersection Delay PM LOS & Overall Intersection Delay Alternative A – T -Intersection North Intersection B 14.5 seconds South Intersection C 28.9 seconds North Intersection C 21.4 seconds South Intersection C 20.5 seconds Alternative A – Level of Service and Delay
- 20. County of Fairfax, Virginia Pros •Solves delay and queuing issues •Small right-of-way footprint compared to Alternative B •Community gains approximately 1.5 miles of 5- foot bike lanes •Community gains approximately 3,000 linear feet of walkways Cons •Impacts an estimated 21 parcels •Tight design radii (northern intersection of project) •Requires stormwater management basin outside of right-of-way, complicated by Mehrs Farm •Introduces unconventional intersection geometry at Balls Hill Road and Dulany Drive intersection Department of Transportation 20 Preliminary Cost $13.5M Alternative A – T-Intersection
- 21. County of Fairfax, Virginia Department of Transportation 21 Alternative B – Roundabout
- 22. County of Fairfax, Virginia Department of Transportation 22 SCENARIO AM LOS & Overall Intersection Delay PM LOS & Overall Intersection Delay Alternative B - Roundabout C 31.6 seconds C 23.0 seconds Alternative B – Level of Service and Delay
- 23. County of Fairfax, Virginia Pros •Improves LOS to C/C in 2040 AM/PM •Reduces queuing •Maintains VDOT design standard (horizontal curvature) •Option to landscape to keep historic look and be an area amenity •Traffic calming effect •Lowest Cost •Community gains approximately 2,000 linear feet of walkways •Improves alignment at Balls Hill Road and Old Dominion Drive intersection Cons •Impacts an estimated 13 parcels •Driver roundabout learning curve •May require significant grading issues due to topography, particularly for approach realignments •Impacts to three new homes currently being constructed by the Mehr Farms development Department of Transportation 23 Preliminary Cost $12.1M Alternative B – Roundabout
- 24. County of Fairfax, Virginia Department of Transportation 24 Alternative C – Addition of Dedicated Left-Turn Lanes
- 25. County of Fairfax, Virginia Department of Transportation 25 SCENARIO AM LOS & Overall Intersection Delay PM LOS & Overall Intersection Delay Alternative C - Addition of Dedicated Left-turn Lanes D 46.5 seconds E 55.8 seconds Alternative C – Level of Service and Delay
- 26. County of Fairfax, Virginia Pros •Improves LOS to D/E in 2040 AM/PM •No major road link realignments (widens along existing alignment) •Smaller right-of-way footprint compared to Alternative B •Lower cost (relative to Alternative A) •Community gains approximately 1 mile of 5-foot bike lanes •Community gains approximately 3,000 linear feet of walkways Cons •Impacts an estimated 22 parcels •Inefficient left-turn (quasi U-turn) for the Old Dominion Drive approaches •Significant impact to Korean Presbyterian Church frontage •Requires stormwater management basin outside of right-of-way, complicated by Mehrs Farm •Problematic roadway access for the Mehr Farm development Department of Transportation 26 Preliminary Cost $12.7M Alternative C – Addition of Dedicated Left-Turn Lanes
- 27. County of Fairfax, Virginia Department of Transportation 27 Alternative A.1 – T-Intersection Improved
- 28. County of Fairfax, Virginia Department of Transportation 28 Alternative A.1 – T-Intersection Improved (Northern Intersection)
- 29. County of Fairfax, Virginia Department of Transportation 29 Alternative A.1 – T-Intersection Improved (Mehr Farms)
- 30. County of Fairfax, Virginia Department of Transportation 30 Alternative A.1 – T-Intersection Improved (Southern Intersection)
- 31. County of Fairfax, Virginia Department of Transportation 31 SCENARIO AM LOS & Overall Intersection Delay PM LOS & Overall Intersection Delay Alternative A – T -Intersection North Intersection B 14.5 seconds South Intersection C 28.9 seconds North Intersection C 21.4 seconds South Intersection C 20.5 seconds Alternative A.1 – Level of Service and Delay
- 32. County of Fairfax, Virginia Pros •Solves delay and queuing issues •Small right-of-way footprint compared to Alternative B •Community gains approximately 1.5 miles of 5- foot bike lanes •Community gains approximately 2,750 linear feet of walkways •Improves alignment at southern Balls Hill Road and Old Dominion Drive intersection (relative to Alternative A) •Space provided for Stormwater management facilitates •Incorporates improved access for Mehr Farms Cons •Impacts an estimated 19 parcels •Tight design radius (northern section of project) Department of Transportation 32 Preliminary Cost $15.0M Alternative A.1 – T-Intersection Improved
- 33. County of Fairfax, Virginia Department of Transportation 33 Comparison of All Alternatives Scenario AM Level of Service & Overall Intersection Delay PM Level of Service & Overall Intersection Delay AM/PM 95th % Queue Estimated # of Property Impacts* Cost Estimate (In Millions) No-Build - 2040 F 221.1 seconds F 210.5 seconds WB - 3,909 ft. 0 Less than $0.02 Alternative A – T-Intersection North Intersection B 14.5 seconds South Intersection C 28.9 seconds North Intersection C 21.4 seconds South Intersection C 20.5 seconds WBT/R – 328 ft. EBT – 394 ft. 20 (15 Partial Right-of- Way + 5 Easements) $13.5 Alternative B – Roundabout C 31.6 seconds C 23.0 seconds EB – 784 ft. 9 (9 Partial Right-of- Way) $12.1 Alternative C – Addition of Dedicated Left-turn Lanes D 46.5 seconds E 55.8 seconds WB - 2,969 ft. 21 (20 Partial Right-of- Way + 1 Easement) $12.7 Alternative A.1 T-Intersection Improved North Intersection B 14.5 seconds South Intersection C 28.9 seconds North Intersection C 21.4 seconds South Intersection C 20.5 seconds WBT/R – 328 ft. EBT – 394 ft. 19 (14 Partial Right-of- Way + 5 Easements) $15.0
- 34. County of Fairfax, Virginia Department of Transportation 34 • Fall 2018 • Spring 2019 – Spring 2023 • Spring 2021 – Spring 2023 • Spring 2023 – Fall 2024 • Board of Supervisors approved $20.5 million local funding for Balls Hill Road at Old Dominion Drive intersection improvement on May 15, 2018. Finalize Study with Public Input Preliminary Engineering Design Right-of-Way Acquisition Construction Anticipated Project Schedule and Funding
- 35. County of Fairfax, Virginia Department of Transportation 35 Questions and Answers For more information, visit www.fairfaxcounty.gov/transportation/projects/balls-hill-road or contact Gibran Abifadel at Gibran.Abifadel@fairfaxcounty.gov 703-877-5600, TTY 711 Please have your comments completed by July 13, 2018