[4]: 132  Ring Road East, which passes through the eastern side of the Alberton CBD, is also designated as the M31.

[4]: 131  Passing the Joburg Market, it crosses the M19 Marjorie Road and Vickers Street.

[4]: 108  Here it turns north-east into Doornfontein, where the overpass ends and the route returns to street level.

[4]: 108  As it reaches the outskirts of the University of Johannesburg (Doornfontein campus) it again rises to become an overpass, crossing Charlton Terrace, and enters Berea and Yeoville (where it stops being one-way streets), continuing north to meet Louis Botha Avenue (M11).

[4]: 82  At Houghton Drive the route turns north on this road passing through The Wilds Municipal Nature Reserve to an intersection.