Transport for London (TfL) has confirmed a trial of middle-door only boarding in buses will begin this week, as it looks to enhance its already significant work to ensure that public transport is safe for staff and for critical workers who need to use it for absolutely essential journeys. The trial is the latest in a number of measures aimed at protecting bus workers and the critical workers who need to travel. Middle-door only boarding could ensure that critical workers can continue to rely on London's buses to travel, while ensuring that drivers, who have no option to change seats or move in the bus, can maintain social distancing while working. The trial will assess how the change works in live operations and whether it causes any issues.