Ikhemisi v Rockville ube nesilinganiso esimaphakathi — 3.6 (ngokwezilinganiso zomsebenzisi Mapich).
Sithole ikhemisi Rockville emigwaqweni elandelayo: Shady Grove Rd, Rockville Pike, Rollins Ave, Hungerford Dr, Redland Blvd
Le datha ikhiqizwa kusetshenziswa izihlungi zangokwezifiso ezisuselwe kukho 7 Izinkampani, eyethulwe kuleli khasi.