Before cities engineered their roads and traffic patterns for the cars, many modes mixed together.

Ghosts of DC got a hold of a video of Pennsylvania Avenue in 1909, showing horses, bikes, pedestrians, automobiles, and streetcars all chaotically, but successfully, interacting.

David Alpert created Greater Greater Washington in 2008 and was its executive director until 2020. He formerly worked in tech and has lived in the Boston, San Francisco Bay, and New York metro areas in addition to Washington, DC. He lives with his wife and two children in Dupont Circle.