Open rail data can revolutionize travel by making industry data available and enabling new applications. Key questions around rail include who controls infrastructure, how the system is structured and funded. New apps using open data could monitor punctuality, find cheap fares, and integrate transport options. The National Rail Enquiries monopoly is ending as Network Rail releases real-time train location data. This will allow third-party developers like Placr to build applications that provide independent performance monitoring and new ways for passengers to get rail information and plan journeys.