Are you obliged to exercise extreme caution at all times when driving in a residential zone?

The visible sign D-40 indicates entry into a residential zone. According to Art. 3 para. 1 of the Road Traffic Act, the driver is obliged to exercise caution at all times, but **special caution** only in situations explicitly indicated by the regulations (e.g., when changing lanes, reversing, or approaching an intersection). The mere fact of driving in a residential zone does not impose an obligation to maintain special caution continuously (at all times).