 Of those that work in Washington, D.C., 44.8% drive alone to work, 21.2% take Metro, 14.4% carpool/slug, 8.8% use Metrobus, 4.5% walk to work, 2.7% travel by commuter rail, and 0.6% ride their bicycle to work.Of the households in Washington, D.C., 35.4% do not own a car.City streets in the District of Columbia are organized primarily in a grid-like fashion with its origin at the United States Capitol, with diagonal streets running across this grid, as well as circles—a plan laid out by Pierre L'Enfant and revised by Andrew Ellicott and Joseph Ellicott.