Data as national infrastructure - it is vitally important that we consider data as national infrastructure, just like our physical infrastructure. The quality and availability of data is as important for capacity planning, routing and resilience as it is for road and rail networks. The interfaces between local and national data are as vital as they are for transport links. This podcast features an interview with Nic Cary, Head of Digital Transformation at the Department for Transport and Teresa Jolley, an independent consultant.