Preliminary market engagament to establish the feasibility and scope for the procurement of a software model capable of: (i) ingesting digital passenger travel data and creating passenger-distance based revenue allocation factors between modes for Outboundary Travelcards; (ii) allocation of rail revenue between train operators for Outboundary Travelcards. Procurement of a managed service provision to run the model: ‎ an Inter-TOC Allocation Service for Outboundary Travelcards (the Service). Option to extend (i) the Model to be capable of ingesting data related to Inboundary Travelcards. Ii) the managed service provision to include an Inter-TOC Allocation Service for Inboundary Travelcards.