Gauteng SDI Rail Link - Gautrain

53PHASE 1PHASE 2INCOMEPHASE 3INCEPTION• Project Planning• Scope• Concept• Points of Departure• AssumptionsNEEDSASSESSMENT• DemandDetermination• Market Analysis• Revenue EstimationFEASIBILITY• Technical• Economical• AcceptabilitySystemDescription &Request forProposalsStudy DesignSYSTEMPLANNING• Route Alignment• Technology• OperationsCOSTFIGURE 6: PROJECT PHASING1.4.2 Process of Alternative SiftingIt is recognised that the limited time available will impose major demands onthe study process to be followed. This project will require intensive interactionamong the team members from the different disciplines, and necessitates aniterative process for the sifting of alternatives. As many of the projectelements will be dependent upon one-another, and considering that anyalternatives identified within such elements will result in a large number ofsystem combinations, a 3-stage sifting approach was developed.The principle of the sifting process is shown diagrammatically in Figure 7, toillustrate the selected approach. To a large extent, this approach was builtinto the detailed project programme and critical path analysis. It should bepointed out that the intention is that the project will start at a broad level ofdetail. Unacceptable or impractical alternatives will be discarded as the levelof detail increases, together with the increasing level of accuracy from thedata available.Gauteng SDI Rail Link – Inception Report, 15 June 2000