> Basically, solves the issue of traffic when the traffic is not an issue. As per the stats they gave at 3:40 in video [0], in Ipswich it fell from 23 accident

> Basically, solves the issue of traffic when the traffic is not an issue. As per the stats they gave at 3:40 in video [0], in Ipswich it fell from 23 accidents in 3 years to 1 per year. So it is almost entirely solving the issue of accidents, which is the primary driver for installing them. Once you get down to 1 per year you can start to investigate individual accidents more thoroughly and put in specific smaller scale fixes. [0]: https://youtu.be/VUbsFtLkGN8?t=3m40s https://youtu.be/VUbsFtLkGN8?t=3m40s