When joining the flow of traffic from a roadside parking spot, how many seconds in advance should you turn on your directional signal?

one second
two seconds
three seconds
four seconds

In New Zealand, when merging into traffic from a roadside parking space, you should signal your intention at least three seconds in advance. The importance of this rule lies in ensuring that other road users can notice your intentions in a timely manner, allowing them to adjust their speed or position to maintain safety. Signaling three seconds ahead provides sufficient time and space for other drivers or pedestrians to anticipate and react, reducing the risk of traffic accidents.