Traffic backups on Hunter Mill Road near the Dulles Toll Road may find future fixes in a series of roundabouts.
The Fairfax County Department of Transportation (FCDOT) has been studying what to do about backups on the two-lane Hunter Mill Road for years. After several community meetings in 2014 and 2015, it put the study on hold about a year ago when new software and measuring methods became available that could better gauge the impact of roundabouts.
At a community meeting Wednesday in Reston, Hunter Mill Road Study Project Manager Kristin Calkins said the new analysis shows a 10-12 percent increase in roundabout capacity.
“The new model prioritizes movements with higher volumes, resulting in an improved level of service,” during heavier traffic, she said.
Right now, what the county is looking at are estimates and models. The project would be years into the future. It needs citizen feedback, design, approval from the county planning commission and board of supervisors. It also needs money, and county transportation projects are planned through 2020.
In any case, FCDOT is looking at what roundabouts would do at Sunrise Valley Drive and Hunter Mill Road, on Dulles Toll Road eastbound and westbound exit ramps at Hunter Mill, and at Sunset Hills Road and Crowell Drive, which would also be realigned to connect and further smooth traffic on Hunter Mill. (more…)