Travel is an essential component of modern life. Jumping on a jet to go on package holiday became commonplace in the same century that powered flight had first been achieved. Mass public forms of transport in the developed world started to give way to individual private car ownership, where the only restrictions were uncongested roads to run on and petrol in the tank. In a more environmentally aware world with the communication and digital capacity to serve the needs, transport is changing away from individual ownership models to ones based on usage. Mobility as a Service (MaaS) underpins some of these developments.