Isevisi yemoto v Rockville ube nesilinganiso esimaphakathi — 3.9 (ngokwezilinganiso zomsebenzisi Mapich).
Sithole isevisi yemoto Rockville emigwaqweni elandelayo: Derwood Cir, Frederick Rd, Rockville Pike, Indianola Dr
Le datha ikhiqizwa kusetshenziswa izihlungi zangokwezifiso ezisuselwe kukho 5 Izinkampani, eyethulwe kuleli khasi.