George Okechukwu Onatu is Senior Lecturer in the Department of Urban and Regional Planning, Faculty of Engineering and Built Environment, University of Johannesburg, South Africa.Wellington Didibhuku Thwala is Distinguished Professor and Executive Dean Faculty of Engineering, Built Environment and Information Technology, Walter Sisulu University, South Africa.Clinton Ohis Aigbavboa is Full Professor at the Department of Construction Management and Quantity Surveying, Faculty of Engineering and Built Environment, University of Johannesburg, South Africa.