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County of Fairfax, Virginia
2017 VDOT Repaving and Restriping – Springfield, VA
MARCH 28, 2017ADAM LIND – PROJECT MANAGER
DEPARTMENT OF TRANSPORTATION
Bicycle, Pedestrian, and Traffic Safety Improvements
County of Fairfax, Virginia
Overview•Why are we here?•What projects are being proposed?•Where are we in the process?•What are we asking from the community?•What are the next steps?
DEPARTMENT OF TRANSPORTATION 2
County of Fairfax, Virginia
VDOT Annual Repaving•VDOT Summer repaving includes several roads in the Hunter Mill District. Opportunity to review pavement markings and street design. Proposals are limited to restriping the existing pavement.
•Opportunity to slow speeding traffic, provide transportation options, and improve traffic, bicycle, and pedestrian safety
•No additional cost for the County
•Want to hear from the community about issues/concerns• Some concerns may be addressed through restriping
For information on all paving in Lee District visit:www.virginiaroads.org
DEPARTMENT OF TRANSPORTATION 3
County of Fairfax, Virginia
•Commerce Street ◦Old Keene Mill to Franconia Road – 1.2 mi
•Loisdale Road◦Franconia Road to Spring Mall Dr – 0.4 mi
DEPARTMENT OF TRANSPORTATION 4
Streets Under Review
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 5
Bicycle Master PlanAdopted by the Board of SupervisorsOctober 28, 2014
Bike Lanes
Bike Lanes
Bike Lanes Sharrow
County of Fairfax, Virginia
Bicycle Facility Types
•Sharrow•Climbing Lane•Striped Shoulder•Bike Lane•Buffered Bike Lane More dedicated space and comfort
Less dedicated space and comfort
County of Fairfax, Virginia
Bicycle Facility Types Sharrow-Shared Lane Markings (SLMs), or “sharrows,” are road markings used to indicate a shared lane environment for bicycles and automobiles. Among other benefits shared lane markings reinforce the legitimacy of bicycle traffic on the street, recommend proper bicyclist positioning, and may be configured to offer directional and wayfinding guidance
County of Fairfax, Virginia
Bicycle Facility Types Striped Shoulder-Creates dedicated space to be used by people bicycling. 3’-4’ in width, but not the full width of a bike lane (5’). Added benefit of creating additional buffer space between vehicles and people walking on the sidewalk.
County of Fairfax, Virginia
Bicycle Facility Types Bike Lane-Bike lanes designate an exclusive space for bicyclists through the use of pavement markings and signage. The bike lane is located adjacent to motor vehicle travel lanes and flows in the same direction as motor vehicle traffic.
County of Fairfax, Virginia
Bicycle Facility Types Climbing Lane-A climbing lane incorporates two different facilities on the same roadway segment; a bike lane is provided in the uphill direction to accommodate slower moving bicyclists and a sharrow is provided in the downhill direction, where bicyclists can typically travel at a speed closer to motorists.
County of Fairfax, Virginia
Bicycle Facility Types Buffered Bike Lane-Buffered bike lanes are conventional bicycle lanes paired with a designated buffer space separating the bicycle lane from the adjacent motor vehicle travel lane and/or parking lane.
County of Fairfax, Virginia
Lane Diets
DEPARTMENT OF TRANSPORTATION 12
A Lane Diet is generally described as narrowing travel lanes from a roadway and utilizing the space for other uses and travel modes. Does not involve reducing the number of travel lanes Benefits
◦ Providing transportation alternatives and options◦ Increasing safety for non-motorized users◦ Reduce speeding
County of Fairfax, VirginiaLane Width and Vehicle Speeds
DEPARTMENT OF TRANSPORTATION 13
County of Fairfax, Virginia
Road Diet• Removing travel lanes from a roadway and
reallocating the space for other uses
• Rule of thumb: Roads with less than 20,000 vehicles per day don’t need four (or more) travel lanes
• Have now implemented road diets in several places in Fairfax County◦ Lawyers Rd, Soapstone Dr, Kingstowne Village Parkway, Westbranch
Dr, Greensboro Dr, Park Run Dr, Beacon Hill Road, Ravensworth Rd
DEPARTMENT OF TRANSPORTATION 14
County of Fairfax, Virginia
Commerce Street- Existing
DEPARTMENT OF TRANSPORTATION 15
•Old Keene Mill to Franconia Rd•Fall 2016 Traffic Count: 10,500 vehicles per day (vpd)• VDOT 2015: 23,000 vpd between Backlick
Rd and Franconia Rd
•Speed Limit: 35 MPH•Three segments:
• 1) Old Keene Mill to Amherst Avenue• 2) Amherst Avenue to Brandon Avenue• 3) Brandon Avenue to Old Keene Mill
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 16
•Section 1) Old Keene Mill to Amherst Avenue
Commerce Street - Existing
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 17
Segment 1 Old Keene Mill to Amherst Avenue: 10,500 vpd
Commerce St– Traffic & Speed Data
Southbound DirectionSpeed Limit: 35 mph
85th Percentile: 37 mph76% Traffic: ≤ 35 mph19% Traffic: 36-40 mph4% Traffic: 41-45 mph0.5% Traffic: 46-50 mph
Northbound DirectionSpeed Limit: 35 mph
85th Percentile: 38 mph67% Traffic: ≤ 35 mph24% Traffic: 36-40 mph7% Traffic: 41-45 mph1% Traffic: 46-50 mph
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 18
•1) Old Keene Mill to Amherst Avenue• Convert the outside travel lane in each direction to a buffered bike lane• Evaluate the addition of two new crosswalks with potential concrete refuge island (funded, but separate
from repaving and restriping)
•2) Amherst Avenue to Brandon Avenue• Narrow the existing travel lanes to 11’• Add bike lane east bound towards the bridge• Shared lane/sharrow west bound away from the bridge
•3) Brandon Avenue to Old Keene Mill• Narrow the existing travel lanes to 11’• Create 4’ shoulder for bicycle use
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 19
•Section 1) Old Keene Mill to Amherst Avenue• Convert the outside travel lane in each direction to a buffered bike lane• Evaluate the addition of two new crosswalks with potential concrete refuge island (funded, but separate
from repaving and restriping)
•Section 2) Amherst Avenue to Brandon Avenue• Narrow the existing travel lanes to 11’• Add bike lane east bound towards the bridge• Shared lane/sharrow west bound away from the bridge
•Section 3) Brandon Avenue to Old Keene Mill• Narrow the existing travel lanes to 11’• Create 4’ shoulder for bicycle use
Commerce Street- Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 20
•Section 1) Old Keene Mill to Amherst Avenue (street width varies)
Commerce Street- Proposed
Existing Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 21
•Section 1) Old Keene Mill to Amherst Avenue
Commerce Street- Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 22
•Section 1) Old Keene Mill to Amherst Avenue
Commerce Street- Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 23
•Old Keene Mill Intersection• No changes to the lane configuration approaching the intersection
Commerce Street- Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 24
•Amherst Avenue Intersection
Commerce Street- Proposed
Existing Proposed
Through+ right
Through+ right
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 25
•Section 1) Old Keene Mill to Amherst Avenue•Road Diet benefits everyone by:
• Improving sight distance• Shortening crossing distance• Reducing # of travel lanes to cross in a vehicle or on foot• Providing refuge space• Creating buffer between travel cars and vehicles• Creating dedicated space for people to safely bicycle• Reducing top end speeding
Commerce Street- Proposed
County of Fairfax, Virginia
Traffic Impacts• Intersections evaluated on average delay or Level of
Service (LOS)• Intersections grade A-F, based off LOS• Proposed changing of signal timing to
mitigate loss of one through lane EBLevel of Service
Average Delay
A <10 sec
B >10-20 sec
C >20-35 sec
D >35-55 sec
E >55-80 sec
F >80 sec
County of Fairfax, VirginiaTraffic Impacts – Commerce St
AM LOS Existing
AM LOS Road Diet
PM LOS Existing
PM LOS Road Diet
Amherst Ave
D(42.5 sec)
D(44.2 sec)
D(47.5 sec)
D(50.5 sec)
• Eastbound Commerce St at Amherst Avenue
• Eastbound Commerce St 50% que length changed from 74’ to 151’ (AM) and 84’ to 196’ (PM)
• VDOT has ability to change signal timing to mitigate delay impact from changing lane configuration
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 28
•Section 2) Amherst Avenue to Brandon Avenue•Amherst Avenue to Backlick Rd
• Was repaved in 2015 when Amherst Ave and Backlick Ave were repaved
• No proposed changes at this time, but may be able to add sharrows sharrows
Commerce Street- Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 29
•Backlick Rd to Brandon Avenue• Narrow Travel Lanes, EB bike lane, WB sharrow
Existing Proposed
Commerce Street- Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 30
•Section 3) Brandon Avenue to Old Keene Mill• Narrow Travel Lanes, 4’ striped shoulder in each direction (5’ in
some places)Existing Proposed
Commerce Street- Proposed
Shoulder
Shoulder
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 31
•1) Old Keene Mill to Amherst Avenue• Convert the outside travel lane in each direction to a buffered bike lane• Evaluate the addition of two new crosswalks with potential concrete refuge island (funded, but separate
from repaving and restriping)
•2) Amherst Avenue to Brandon Avenue• Narrow the existing travel lanes to 11’• Add bike lane east bound towards the bridge• Shared lane/sharrow west bound away from the bridge
•3) Brandon Avenue to Old Keene Mill• Narrow the existing travel lanes to 11’• Create 4’ shoulder for bicycle use
County of Fairfax, Virginia
Loisdale Road - Existing
DEPARTMENT OF TRANSPORTATION 32
•Franconia Rd to Spring Mall Dr•VDOT 2015: 23,000 vpd
•Speed Limit: 35 MPH•Two segments:
• 1) Franconia Rd to Loisdale Ct• 2) Loisdale Ct to Spring Mall Dr
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 33
•Section 1) Franconia Road to Loisdale Ct
Loisdale Road - Existing
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 34
•Section 1) Franconia Road to Loisdale Ct• Narrow Travel Lanes, 5’ bike lanes in each direction
Existing Proposed
Loisdale Road - Proposed
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 35
•Section 2) Loisdale Ct to Spring Mall Drive
Loisdale Road - Existing
County of Fairfax, Virginia
DEPARTMENT OF TRANSPORTATION 36
•Section 2) Loisdale Ct to Spring Mall Drive• Keep travel lanes at same width, add sharrows
Loisdale Road - Existing
Existing Proposed
County of Fairfax, Virginia
Past Repaving Projects2015 Road Diet Project – Westbranch Drive•Pre-Project Conditions• Five travel lanes 12’ wide
•Post-Project Conditions• Three travel lanes 12’ wide• Two buffered (6’) bike lanes 6’ wide
DEPARTMENT OF TRANSPORTATION 37
County of Fairfax, Virginia2015 Project – Westbranch Drive: Before
DEPARTMENT OF TRANSPORTATION 38
County of Fairfax, Virginia2015 Project – Westbranch Drive: After
DEPARTMENT OF TRANSPORTATION 39
County of Fairfax, Virginia
Past Repaving Projects2015 Lane Diet Project-Annandale Road•Pre-Project Conditions• Two travel lanes 16’+ wide•Two parking lanes 8’ wide
•Post-Project Conditions• Two travel lanes 11’ wide• Two bike lanes 5’ wide• Two parking lanes 8’ wide
DEPARTMENT OF TRANSPORTATION 40
County of Fairfax, Virginia2015 Project-Annandale Road: Before
DEPARTMENT OF TRANSPORTATION 41
County of Fairfax, Virginia2015 Project-Annandale Road: After
DEPARTMENT OF TRANSPORTATION 42
County of Fairfax, Virginia
After – Annandale Rd
DEPARTMENT OF TRANSPORTATION 43
Post Lane Diet + Bike Lanes•Speed/Traffic counts at two locations in Fall 2016
•Highest average speed was 35 mph
•No 85% percentile speed over 39 mph
County of Fairfax, Virginia
Big Picture
DEPARTMENT OF TRANSPORTATION 44
“Safety in numbers: more walkers and bicyclists, safer walking and bicycling” Peter Jacobsen, 2000
•Research in the US and internationally shows that when more people walk/bike the safer it becomes
County of Fairfax, Virginia
Big Picture
DEPARTMENT OF TRANSPORTATION 45
County of Fairfax, Virginia
Next Steps•Comment period open for two weeks
• April 14, 2017
•FCDOT and VDOT will review input and update designs•Finalize design plans spring 2017 and repaving occurs in summer/fall 2017
DEPARTMENT OF TRANSPORTATION 46
County of Fairfax, Virginia
How to Comment•Fill out comment sheets and submit tonight•Mail comment sheets in over next three weeks•E-mail comments to [email protected] •Presentation will be available online: http://www.fairfaxcounty.gov/fcdot/bike/commerce-loisdale-streetsimprovements2017.htm
Thank You for Participating
DEPARTMENT OF TRANSPORTATION 47