This thesis analyses through the case study of the Fjordbus in Aalborg Denmark, how the development of safety for autonomous passenger ships is a local social practice. By analysing core-concepts from Social Construction of Technology, Actor-Network Theory and Social Practice, I characterise safety through the interconnections of technology, institutional frameworks, and user’s involvement in the context of Aalborg. The findings shown that the development of safety depends on delegating to the autonomous navigation technologies the roles of a conventional crew, that defines the efficiency of the technology and the trust that the passengers will stablish with the transport. This interplay is what integrates safety as part of the daily transport practices for the potential passengers of autonomous transport.