Following on from a Pre-Feasibility and STAG Part 2 Report on potential options for an orbital bus system (EOBRT) in Edinburgh, this report discusses the options for a new link between Lothianburn and Straiton P&R sites. It sets out the highway engineering preliminary design and associated costs, examines the traffic engineering and junction amendments required for the two Sections of the EOBRT route examined in this study, drawing conclusions and making recommendations.