Having mocked the traffic lights mercilessly when they were installed a couple of months back, it is worth reviewing their performance and effect on road safety.
In general, they have been installed on the incoming side of intersections only, so there are no lights on the other side of the intersection. They are also placed about 5 metres back from the intersection corner which means one must stop 5 metres before the intersection so you can see the lights change. This means you must look at a weird angle to see the lights change and a lot of the time, you can not see vehicle movements on the cross street. 4 out of 10 for no lights on the outgoing side of the intersection and 2 out of 10 for not being able to see traffic in the cross street.
They are sometimes working and sometimes not, sometimes on permanent amber, sometimes not.
There are a couple of intersections where the lights are respected but others where they are pretty much ignored. I had expected that they may be vandalised by now but I have seen no evidence yet of this.
All up, provided you ignore them at select times, I doubt they have any effect at all. If you observe them, probably a negative effect. At this stage, UNPol do not pick you off for ignoring the lights which seems the common sense response to me.
Many think that street lighting would have a much bigger positive effect on general road safety and crime.
There goes the job in police public relations.