The examples are a set out as a number of discrete risks together with their primitives and modelling in RMT and Excel. Together they constitute a risk model for a realistic project. Obviously I cannot set out a risk model for every type of project because no two projects are the same even when they are delivering things that are similar, and because the book would become never-ending. I have to choose as my example project a type that could be done in a context that has a wide range of parallels to other types, and whose working and technologies are hopefully familiar to everyone. I have therefore chosen a project to build a new railway.