Here is what bus riders can expect when the Silver Line opens.

Fairfax County

The Fairfax Connector is introducing a circulator service in Tysons Corner with three routes that will run every 10 minutes during peak hours and every 20 minutes at other times. Two routes will run weekdays only, and one will provide service seven days a week. The service will connect commuters from the Metrorail system to key employment and shopping destinations in Tysons. Circulator riders will pay an introductory fare of 50 cents per ride. The Connector also is adding 12 new routes to connect commuters to the rail line from Vienna, McLean, Herndon and Reston. More than two dozen current routes will be adjusted. Some bus routes that took riders to the West Falls Church Metro station will be rerouted to serve the Silver Line instead.

Arlington County

The county transit agency’s ART bus service is launching a new route for peak hours to connect commuters from the Crystal City area to Rosslyn and Courthouse. The ART 43 is scheduled to start March 31 as an alternative for Blue Line users who will see fewer trains when the Silver Line opens. The new bus service to Rosslyn will run every 20 minutes.

Prince William County

OmniRide, the commuter bus service from Prince William County, will adjust two lines: The Manassas Metro Direct and Linton Hall Metro Direct will travel to the Tysons Corner station instead of West Falls Church.

Loudoun County

Express buses connecting to Metrorail will serve the Wiehle Avenue or Spring Hill Metro stations instead of West Falls Church. A new bus route will run from Loudoun to the Wiehle Avenue station. Buses also will be more frequent. The county’s long-haul service into the District will not change.

Washington Flyer

Nonstop service to Dulles airport from the West Falls Church Metro station will move to the Wiehle Avenue station. The fare will decrease from the current $10 one-way or $18 round trip to $5 each way. When the Silver Line opens, the Flyer will also take a new name, Silver Line Express, and will debut new buses.