Sukhai, A.; Seedt, M.; Jordaan, E.; Southern African Transport Conference (29th : 2010 : Pretoria, South Africa); Transportation Research Board of the National Academies (TRB)
(Document Transformation Technologies, 2010-08)
Paper presented at the 29th Annual Southern African Transport Conference 16 - 19 August 2010 "Walk Together", CSIR International Convention Centre, Pretoria, South Africa.