M37 (Johannesburg)

The M37 begins at Longmeadow Business Estate west of Modderfontein as an off-ramp of the N3 Highway (Johannesburg Eastern Bypass).[4]^: 58 It begins by going southwards to meet the R25 Road (Modderfontein Road) and bypass the Greenstone Shopping Centre west of Greenstone Hill.[4]^: 58

It continues southwards as Lungile Mtshali Road (formerly Van Riebeeck Road and Edenvale Road[5][6]), to enter the town of Edenvale and bypasses the town centre as the Andries Pretorius Road before becoming 17th Avenue.[4]^: 59 Crossing Horwood Street (M16) the route becomes Hurlyvale Avenue then St. John Avenue before it t-junctions with Lungile Mtshali Road again, and turns south.[4]^: 85 South of Edenvale, at the suburb of Meadowbrook, the M37 crosses the R24 Highway and meets the western terminus of the M99 Road before crossing the N12 Highway and entering the city of Germiston, bypassing Bedfordview to the east.[4]^: 85

From the N12 junction, the M37 goes southwards firstly as A G De Witt Drive (meeting the M52 Road just after the N12 junction), then as Shamrock Road, to pass through the suburb of Primrose and reach a junction with the R29 Road (Main Reef Road).[4]^: 111 It meets the southern terminus of the M57 Road at the same junction.[4]^: 111 The R29 joins the M37 and they are one road up to the next junction, where the R29 turns east and the M37 becomes the road south-westwards (Johan Rissik Road) to enter the Germiston City Centre.[4]^: 111

The M37 becomes Victoria Street northwards and Meyer Street southwards (one-way streets) and is the main road southwards through Germiston Central, co-signed with the M53, up to the Georgetown section, where it becomes Voortrekker Street westwards before becoming Joubert Street to the south-west.[4]^: 111 It reaches Germiston Lake, where it meets Refinery Road (M93 Road) and becomes Lake Road.[4]^: 111 Just after, at the entrance to Rand Airport, it becomes Russell Road and bypasses the Airport to the east before crossing the N17 Toll Highway as Wits Rifles Drive.[4]^: 133

From the N17 junction, it continues southwards as Black Reef Road, through the suburb of Wadeville, to reach an interchange with the R554/R103 (Heidelberg Road).[4]^: 155 It becomes Masakhane Street and passes under the N3 Highway to enter the township of Katlehong, where it ends at the junction with Kgotso Street west of the Katlehong Railway Station.[4]^: 155