Metrobus
Metrobus, the D.C. area's regional bus service, operates more than 20 major bus lines in Arlington, with about 100 individual route variations. Generally, Metrobus operates the most heavily-used routes along Arlington's main streets while ART, Arlington's local bus system, operates smaller buses to serve more Arlington neighborhoods. Metrobus and Metrorail are operated by the Washington Metropolitan Transit Authority (WMATA).
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