SCHOLARS disagree about whether the formerly whites-only neighbourhoods of Johannesburg, South Africa’s largest and most economically important city, have become substantially desegregated since the end of apartheid in 1994. Some argue that racial residential segregation has declined only slightly, while others argue that it is substantial. Author OWEN CRANKSHAW, Emeritus Professor of Urban Studies, University of Cape Town My recent research shows that the extent of racial desegregation is much more substantial than is commonly accepted. This research is based on population census data for the years 1996, 2001 and 2011 and is a result of my long-term scholarly interest…