Metro plans to increase its bus service later this summer to accommodate a massive move of military workers to the Mark Center, Fort Belvoir and Andrews Air Force Base. The transit agency is considering adding new routes, running buses more often and even offering free rides to military workers and government contractors on one line.

“It’ll be a good step forward,” said James Hamre, Metro’s director of bus planning. “There’s no single answer to solve the traffic problems, so every little bit helps.”