An expected 32% increase in transit usage within the district by 2030 has spurred the construction of a new DC Streetcar system to interconnect the city's neighborhoods. An additional Metro line that will connect Washington to Dulles airport is expected to open by July 2021 at the earliest. The district is part of the regional Capital Bikeshare program. Started in 2010, it is one of the largest bicycle sharing systems in the country with more than 4,351 bicycles and more than 395 stations, all provided by PBSC Urban Solutions. By 2012, the city's network of marked bicycle lanes covered  of streets.