A 4D learning technology will help to improve safety on the worksite of the British high-speed rail project HS2 by combining cloud-based and hazard management technology.  It allows site workers to enter the Mission Room from the office through a four-dimensional, 360º virtual adaptation of a BBV the construction site on HS2’s North Route Area. Workers can then go on-site to explore, discuss and agree on the delivery sequence of the identified safety issues and their solutions.