The R21 is a major north–south provincial route in eastern Gauteng Province, South Africa. Built in the early 1970s, it remains one of two freeways linking Pretoria with Johannesburg, via the R24. As the eastern of the two freeways, it links the Pretoria city centre with OR Tambo International Airport, the N12 freeway, and Boksburg. Between the Solomon Mahlangu Drive on-ramp in Monument Park, Pretoria, and the N12 in Boksburg, the R21 is an 8 lane highway and motorway (freeway), with 4 lanes in each direction. It has off-ramps leading to Irene, Olifantsfontein, Benoni, and Kempton Park, including a partial offramp to Atlas Road. The route intersects the N1 Highway near Centurion, the R24 near the airport, the N12 and N17 in Boksburg, and the N3 near Vosloorus on the East Rand, where it ends. The section from the N12 to the N3 is not a freeway. As early as the 1970s there were proposals to extend the R21 freeway further south and the freeway may be linked with the current eastern terminus of the M2 in Germiston in future. It is also designated as the P157.
Thembisa, formerly Tembisa, is a large township situated to the north of Kempton Park on the East Rand, Gauteng, South Africa. It was established in 1957 when black people were resettled from Alexandra and other areas in Edenvale, Kempton Park, Midrand and Germiston.
The R101 is a Regional Route in South Africa that is the designation for some of the old sections of roads that were previously the N1, prior to upgrading. It only has 2 sections, from Bellville to Worcester and from Johannesburg to Polokwane.
The R562 is a Regional Route in Gauteng, South Africa that connects Diepsloot with Olifantsfontein (Clayville) and Thembisa via Midrand.
The M57 is a major metropolitan route in Greater Johannesburg, South Africa. A north/south route, it connects Germiston with the south-eastern suburbs of Pretoria via Kempton Park and Olifantsfontein. For most of its length, it is an alternative route to the R21 freeway.
The M18 is a long metropolitan route in Greater Johannesburg, South Africa. It connects Krugersdorp with Bruma via Constantia Kloof, Florida, Auckland Park, Braamfontein and Observatory.
Olifantsfontein, also known as Clayville, is a small town on the East Rand in the Gauteng Province of South Africa. It is located at the north-western corner of the City of Ekurhuleni Metropolitan Municipality, just north of the Thembisa township. As of the 2011 Census, the town has a population of 14,526 people.
The M10 road is a long metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Sunderland Ridge with Mamelodi via Lyttelton and Garsfontein.
The M6 road is a long metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Pretoria West with a rural area east of Pretoria via Pretoria CBD, Brooklyn, Lynnwood and Wapadrand.
The M2 road is a metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects the N1 and N4 highways at the Proefplaas Interchange with Proclamation Hill via Hatfield, Pretoria CBD and Pretoria West.
The M5 road is a metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Fountains Valley in southern Pretoria with Annlin in northern Pretoria via Sunnyside, Arcadia and Gezina. For much of its route, it is named Steve Biko Road.
The M7 road is a metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Proclamation Hill with Queenswood via Pretoria Industrial, Groenkloof, Brooklyn and Hatfield.
The M8 road is a metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Capital Park with Mamelodi via Gezina, Villieria and Eersterust.
The M22 road is a metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Pretoria Industrial with Queenswood via Proclamation Hill, Pretoria West, Pretoria CBD and Rietondale.
The M1 road is a short metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Pretoria West and the Pretoria CBD with Pretoria North via Mayville.
The M11 road is a short metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects the Pretoria CBD with Faerie Glen and Garsfontein via Sunnyside, Brooklyn and Menlyn.
The M31 road is a metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects the southern suburbs of Centurion, from the Rietvlei Nature Reserve to Rooihuiskraal via Irene and Highveld.
The M3 road is a short metropolitan route in the City of Tshwane in Gauteng, South Africa. It consists of only one road in the Pretoria CBD.
The M19 road is a short metropolitan route in the City of Tshwane in Gauteng, South Africa. It is in the city of Centurion, connecting Lyttelton with Highveld via the Centurion CBD.
The M37 road is a short metropolitan route in the City of Tshwane in Gauteng, South Africa. It is in the city of Centurion, connecting Wierdapark with the Noordwyk suburb of Midrand via Rooihuiskraal and The Reeds. For much of its route, it is named Rooihuiskraal Road.
R101 / M22 in Pretoria CBD 
M4 in Pretoria CBD
R104 at Church Square 
M2 in Pretoria CBD
M6 in Pretoria CBD
M11 in Pretoria CBD
M3 in Pretoria CBD
R21 / M5 / M7 at Fountains Valley 
M10 in Lyttelton 
M25 in Lyttelton
M19 in Lyttelton
M27 in Lyttelton
N1 in Doringkloof 
M36 in Irene 
M31 in Irene
M38 near Thembisa 
M39 near Chloorkop
