Wanted: Commuting Route from Reston into DC that Doesn't use the W&OD
I'm likely moving to Fairfax County, VA soon, and will be bike commuting into DC for work. I want my commute to remain less than ~15 miles each way. Can anyone suggest a good commuting route from the Reston area into DC via Chain Bridge that avoids the main roads like Route 7? Taking Chain Bridge instead of the W&OD/Key Bridge route cuts several miles off the distance, and would allow me to live farther out in the county, where housing dollars buy more. On the other hand, NOVA rush hour drivers are extremely aggressive in my experience, and it is not worth it to me if I have to ride on Route 7 or similar major roads.
I'll cross post in the Commuting Forum also. Thanks for any advice.