Rockville is conveniently located north of the District of Columbia, at the crossroads of I-270 and I-495 (the beltway). I-270 runs north-west to Fredrick, Maryland and joins with I-70, which runs east/west from the Pennsylvania Turnpike to Baltimore, Maryland. I-495 is the beltway around the District of Columbia with access to Maryland and Virginia.
The proximity of the conference location to the District of Columbia also gives the option of access by metro from the city through the Red Line (White Flint Station). The Red Line runs from the conference location (approximately 2 blocks walk) both out to Shady Grove station (Maryland), into the center of DC (Metro Center and Gallery Place stations), with transfers to all other metro lines, and then back out toward Glenmont (Maryland). The metro access north, east, south, and west of the city to include Virginia and Maryland stops. A link to the Washington Metropolitan Area Transit Authority website is provided below with maps, schedules (rail and bus), and other information.
However, most attendees will arrive by air. There are three major airports close to the conference location ranked by proximity: (1) Washing Reagan International Airport (DCA) – 30 minute drive, (2) Dulles International Airport (IAD) – 35 minute drive, and (3) Baltimore Washington Thurgood Marshall International Airport (BWI) – 45 minute drive. BWI and IAD have the most direct options for international flights (especially Europe and Asia). All of these airports are accessible by taxi (or Uber and Lyft), Metro, and AMTRAK / MARC rail transportation. Traffic in the DC area can be quite unpredictable, so it is recommended to explore public transit options to and from the airport to avoid long delays at peak driving hours.
For those who like travel by train, AMTRAK is also available with service into Union Station in DC. Routes include those north-east, north-west, and south-west of Washington DC. Please see the link below for more information including schedules and maps.