Bicycle lanes on 29, 50 and other roads adjacent and accessible to Vienna, Dunn Loring, and West Falls Church metro stations. Connect these with W&OD trail.
The hard work has been done in preparing this. All we need is the approval and commitment to implementation. Establish infrastructure that enables people to feel safe enough to use their bikes for those over 50% of trips that are within 3 miles of their home.
Get someone in this position who will encourage schools and parents to get kids out of the kiss and ride and on to buses, walking, or cycling.