I used to bike from Herndon to my former office in Loudoun, VA.  The W&amp;OD bike trail is fantastic.  It was a beautiful ride, up until the last few miles getting from the trail to the office park at Loudoun Station.  The most direct route is to  ride on the shoulders of Loudoun County Parkway in front of the Verizon building.  There are no sidewalks, the shoulders are littered with gravel and cars drive around 50 MPH.  Just, no.  I had worked out a path that added about a mile but kept me either on sidewalks or side roads.  I understand the argument that sidewalks are for pedestrians, not cyclists, but there are very very few pedestrians on those sidewalks.  Loudoun really should put a path from the Station to the W&amp;OD trail before the Silver Line metro comes in.