The New Zealand Road Code is very clear about when and how road-users should indicate their change of direction.
Roadworthy vehicles must have indicator lights, front and back, that flash on and off. Signal at least three seconds before you change direction when driving on the road. It is a safety issue. Considerate drivers are mindful of others.
It was a busy summer holiday season as people headed to the northern beaches. Lots of traffic congested our regional roads. Drivers who made sudden changes in direction without signalling have left us at times with a white-knuckled grip on the steering wheel as we took evasive action.
Road Use 101. Turn your blinkers on to signal a change of direction. It is recommended drivers use a hand signal (not an offensive gesture) if the front and rear indicator lights on their car do not blink.