A Primer: Oakton Community Park Roundabout
Current plans for traffic calming measures based on results of a 2006 study on Hunter Mill Road.
By Nicole Trifone
http://oakton.patch.com/articles/a-primer-oakton-community-park-roundabout
With more cars traveling Hunter Mill Road as Northern Virginia continues to develop, Fairfax County is trying to balance traffic calming solutions with a desire to preserve the historic Hunter Mill Corridor.
To avoid turning Hunter Mill Road into a four-lane thruway, a county study has recommended seven roundabouts and several other road treatments — such as splitters or raised medians — along Hunter Mill Road.
No plans have been finalized, but the county has been taking on the project one piece at a time, allowing the three affected magisterial districts — Providence, Hunter Mill and Sully — to find the appropriate time and money on their own.
The first roundabout — planned for the intersection of Mystic Meadow Way and Oakton Community Park in the Providence District — is scheduled to begin construction next year, for a completion date in spring 2013.
The final design plan is still in the works. A conceptual rendering can be found in the PDFs above.
Construction plans for the park's one-lane roundabout would:
Extend the sidewalk near Oakton Shopping Center past the park;
Build the roundabout and sidewalk in a manner that would avoid the historic willow oak tree in front of the park;
Cut into some of the private property in front of the Hunterbrooke (off Mystic Meadow Way) neighborhood's brick sign for the roundabout and sidewalk; and
Construct two crosswalks that include a safe space between lanes for pedestrians to cross.
Change the speed limit to 20 mph.
Supervisor Linda Smyth (Providence) wants the roundabout to be constructed along with improvements to Oakton Community Park — in which a soccer field and playground is planned. That would not only address the increase in traffic, but also save costs by working on both projects simultaneously. The playground should be built by the end of the year, Smyth said, but final designs for the roundabout have not been completed.
Though a designated Virginia Byway, the 7.2-mile Hunter Mill Road is not protected from development. Instead, the distinction is because of the road's aesthetic or cultural value near an area of historical, natural or recreational significance. The byway is eligible for nomination to the Virginia Landmarks Register and the National Register of Historic Places.
The first roundabout's cost is unknown, as plans are not finalized, but $800,000 from Fairfax County commercial and industrial real property tax for transportation projects will go toward funding it.
Traffic Calming Study
In 2001, the Hunter Mill Defense League developed a mission statement after meeting with their fellow community members: "The Community's vision is to maintain Hunter Mill Road as a tranquil, residential byway with unique natural, historic, and picturesque character, thus preserving one of the last remaining scenic, rolling terrains in Fairfax County."
In 2003, Fairfax County supervisors of the magisterial districts that then contained parts of Hunter Mill Road appointed residents of the corridor to the Hunter Mill Traffic Calming Committee, who used that mission statement to explore different traffic calming measures for the byway.
The committee reached out to then-Del. Vincent Callahan Jr. (R-34th), whose district included parts of Hunter Mill Road in the north. Through his work, the committee procured about $75,000 to go toward a traffic calming study, which was conducted by Draper Aden Associates for the Northern Virginia Regional Commission and published in December 2006. For the full traffic calming study, click here.
In May 2006, those involved in the study along with local leaders met with more than 200 residents for a workshop on some of the findings and to solicit input on the possible recommendations. The report indicates a majority of attendees left happy with where the project was going, a claim corroborated by Bruce Bennett, chairman of the Hunter Mill Traffic Road Calming Committee.
The 2006 study found the following facts about the existing traffic situation on Hunter Mill Road:
Daily traffic volume study found between 16,000 and 18,000 vehicles. Weekday peak hour volumes vary between 1,500 and 1,900 vehicles. (Counted between late 2005 and early 2006.)
Hunter Mill Road's posted speed limit is 35 mph, but a majority of northbound drivers are traveling at 42 mph at most points on the road, and most southbound drivers following the speed limit.
Three of 13 intersections in the study received "F" ratings during both morning and evening peak hours, meaning they "forced flow with demand volumes greater than capacity resulting in complete congestion." The intersections: Chain Bridge Road, Hunter Station Road/W&OD trail and Crowell Road. Hunter Race Way/Clovermeadow Drive received an "F" rating during morning peak hours.
After current conditions of the road were explored, the study considered three options:
Stick with the status quo;
A traditional highway plan that would involve widening the road and straightening the curves; and
A traffic calming alternative that mixes various road treatments that require drivers to slow to steer around them.
The study recommended traffic calming measures because it best addressed safety, preservation and level of service concerns.
To see a side-by-side comparison of the three concepts' effects on level of service, click on the PDFs above.
The road treatments option also calls for various trails and sidewalks to be developed along the road to allow for safer pedestrian and bicycling paths.
The 2006 study included a recommended, but flexible priority list of projects to calm traffic on Hunter Mill Road:
Attachments: