Of the three-digit routes, the R300, is an expressway linking the N1 at Brackenfell to the N2 near Mitchells Plain and the Cape Town International Airport. The R302 runs from the R102 in Bellville, heading north across the N1 through Durbanville leaving the metro to Malmesbury. The R304 enters the northern limits of the metro from Stellenbosch, running NNW before veering west to cross the N7 at Philadelphia to end at Atlantis at a junction with the R307. This R307 starts north of Koeberg from the R27 and, after meeting the R304, continues north to Darling. The R310 originates from Muizenberg and runs along the coast, to the south of Mitchell's Plain and Khayelitsha, before veering north-east, crossing the N2 west of Macassar, and exiting the metro heading to Stellenbosch.