M27 (Johannesburg)
M27 is a major road in Johannesburg, South Africa. A large part of the route is named Jan Smuts Avenue which is roughly 12 km long. It begins in the southern suburb of Booysens and heads northwards through the Johannesburg CBD and the northern suburbs of Randburg. Route. The M27 begins at the M1 Booyesen Street Interchange as a number of off-ramps and heads northwards as Booysens Street through Booysens, Ophirton and into Selby. In Selby, the M27 crosses under the M2 motorway at the Village Road/Selby Interchange into the Johannesburg CBD. Here the route becomes  one-way as Pixley Seme Street heading north through the city with Newtown to the west. The M27 as a southbound one-way road through the CBD is called Simmonds Street, starting at the Queen Elizabeth Bridge and runs through under the M2 where it joins Booysens Street. Leaving the CBD the road resumes being dual carriageway as it crosses the railway lines via the Queen Elizabeth Bridge as Queen Elizabeth Drive and into Braamfontein. Turning right, its joined by traffic crossing the Nelson Mandela Bridge its heads north through to the top of Braamfontein ridge as Bertha Street. The  M27, now called Jan Smuts Avenue begins on Braamfontein's ridge as an extension northwards of Bertha Street at the intersection with Stiemens Street. It passes the East campus of the University of Witwatersrand on its left and Helpmekaar Kollege on the right before descending into the leafy suburb of Parktown where it crosses over a major intersection, the M71 Empire Road. After crossing Empire Road, passes over the M1 De Villiers Graaff motorway again with several entrances and exits at this intersection. Leaving Parktown, the road begins to drop as it descends Parktown Ridge through the hilly and leafy  suburbs of Westcliff and Forest Town. As it enters Parkview, it passes through the Herman Eckstein Park, with the Johannesburg Zoo to the right and the left Zoo Lake. Narrowing to single lanes in Saxonwold, Jan Smuts Avenue splits northwards at the Cotswold Drive (R25) winding its way out off Saxonwold and into Parkwood. It resumes as a dual carriageway as it climbs into the retail suburb of Rosebank and leafy Parktown North before dropping down into Dunkeld West as a single carriageway. A short while later it resumes as a dual carriageway and passes through Hyde Park where at  a major intersection close to the Hyde Park Corner shopping centre, the road splits north-west when it intersects the start of the M81 William Nicol Drive. It passes through Craighall and Craighall Park crossing the Braamfontein Spruit. It then enters the old Randburg suburbs of Blairgowrie and Bordeaux intersecting Bram Fischer Drive, Ferndale and where the M27 Jan Smuts Avenue ends.