• 463-Maple Avenue - Tysons
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Route 321LOOP: Due to operational issues, the trip leaving Van Dorn Metro at 7:20PM is missed. CR
On October 28, 2026, from 1:00 PM to 11:59 PM, Route 463 will detour, due to the Vienna Halloween Parade. Stops will be missed along the route at this time. Passengers should plan alternative routes. Thank you for your patience.