The driving and parking situation may hinder the access to Nationals Park; however, the mass transportation option is excellent. The subway system throughout DC is known as the Metro, and it is well designed, along with being highly accessible. On the Green Line is the Navy Yard station, and that sits just a few minutes from the stadium. Two stops from the Green Line, the L'Enfant station enables for transfers from several other lines.Though it gets quite crowded after games, the Metro is the easiest way to reach the area.While the warnings not to drive to Nationals Park seem scary, in actuality, it is not as bad as many lead to believe. Driving in from Virginia is easier than Maryland, as the route is more direct. Running through the city, I-395 leads to I-695, and there is an exit for the Southeast neighborhood that houses Nationals Park. Skip the congested exit for South Capitol Street and instead use the one for 6th St SE (or 8th St SE if coming from I-295). From there, you can start to look for parking in the area

I'd recommend the Metro, the lots will be pricey, but if it's a day game, it will be convenient with less traffic.