Frequent transit maps highlight bus and rail lines that come at least every 15 minutes. They’re great tools that help riders easily identify the most convenient routes.

Such maps exist for more than 20 cities around the US, including DC. Stuart Sirota of TND Planning Group made this one, for Baltimore.

Baltimore frequent transit map, posted with permission from Stuart Sirota.

Dan Malouff is a transportation planner for Arlington and an adjunct professor at George Washington University. He has a degree in urban planning from the University of Colorado and lives in Trinidad, DC. He runs BeyondDC and contributes to the Washington Post. Dan blogs to express personal views, and does not take part in GGWash's political endorsement decisions.