There are also numerous commuter buses that residents of the wider Washington region take to commute into the city for work or other events, such as the Loudoun County Transit Commuter Bus and the Maryland Transit Administration Commuter Bus. The city also has several bus lines used by tourists and others visiting the city, including Big Bus Tours, Old Town Trolley Tours, and DC Trails. Many tourists also arrive via charter buses. Following renovations in 2011, Union Station became Washington's primary intercity bus transit center.