How must a bus operate through a roundabout?

When navigating through a roundabout, it's important for a bus to yield to traffic that is already within the roundabout before proceeding. This rule ensures a smooth flow of traffic and minimizes the risk of collisions. The bus must also follow the designated lane to maintain order and safety, as roundabouts are designed to keep traffic moving predictably. Failing to yield or not adhering to the appropriate lane could disrupt traffic flow and create dangerous situations for both the bus and other road users.

The option about accelerating rapidly to exit would not be safe, as it could cause the bus to enter or exit the roundabout in a manner that risks collisions. Choosing the shortest route may lead to unpredictability and may not comply with the traffic patterns established in the roundabout. Lastly, using the wrong lane for exiting is hazardous and may confuse other drivers, further exacerbating safety risks. Therefore, yielding to traffic and maintaining the correct lane are crucial aspects of safe roundabout navigation for bus operators.