When driving a bus, is it obligatory to give advance warning of the intention to change lanes?

Question

DentroTest · Accepted Answer

As a general principle, the traffic regulations establish that any maneuver involving a lateral movement, such as changing lanes, is required to be warned of using the direction indicators (or, failing that, the arm). This obligation always applies and must be met sufficiently in advance, regardless of whether or not other vehicles are driving around, since prior signaling guarantees predictability and road safety.

When driving a bus, is it obligatory to give advance warning of the intention to change lanes?

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