When can the authorities order a bus driver to undergo a fitness assessment?

You answered correctly. Authorities may require a bus driver to undergo a fitness assessment if they have seriously violated road traffic regulations, committed a serious road traffic offence, or if there are signs of high aggression. This rule exists to protect public safety, as bus drivers are responsible for many passengers and must be reliable and fit for driving. If there is reason to doubt a driver’s fitness—whether due to dangerous behavior or signs of aggression—the authorities are permitted to intervene and ensure the person can safely operate a bus. This helps prevent potential harm and upholds high safety standards for public transport drivers. In similar questions, always consider whether a situation might impact road safety, as this often triggers such assessments.