The Christchurch City Council and the Land Transport Safety Authority evaluated the effectiveness of speed trailers using four separate surveys. Measurement of the speeds of free running vehicles before and after the speed trailer with a control survey when the trailer was not present found that the trailer had an effect on speeds for at least 200 metres downstream of the trailer. A survey of 27 schools found that most thought the trailer had an effect on vehicle speeds, raised awareness of vehicle speeds, and helped learning about speeds. Most would like to use the trailer again and were positive and supportive of the trailer. Drivers interviewed after they had passed the trailer had noticed it and knew what it was. Those installing the trailer had found no serious shortcomings but thought the trailer could be lighter and more damp proof. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E213669.
Samenvatting