A turn indicator system for a vehicle (10) which comprises four or more visible indicators (12, 14, 5 16, 18) and one or more audible indicators, such that at least two visible indicators (12, 14, 16, 18) are on each side of the vehicle (10), and the one or more audible indicators emits sound selected from broadband sound, white sound ® or noise, pink sound or noise and multi-frequency sound, and a vehicle speed monitor which stops operation of the audible indicator or indicators when no motion is taking place, in which the visible and the audible indicators (12, 14, 16, 18) operate at the same time, such that when the vehicle (10) is in motion upon operation of the indicator system the visible and the audible indicators (12, 14, 16, 18) emit their warning signals at the same time.