Observant and considerate drivers do not have a problem with speed cameras, do not need to see them, or know where they are located. I cannot understand what all the fuss is about.
Because speed cameras have been used to justify a reduction in traffic patrols and are seen as a panacea.
However, speed cameras cannot detect drunk driving, illegal mobile phone use, tailgating, "I'm sorry I didn't see you mate" near misses (often hits!) for us motorcyclists. They can't stop dodgy looking cars on a hunch and discover all sorts of other criminal activity. They are unable to decide when to book people and when to give a harsh word instead. They can't detect the person who drives uninsured because the fine for this is cheaper than paying insurance premiums.
The implication behind speed cameras seems to be "oh well, they're all going to have accidents anyway, so let's make them happen more slowly" which is an admission of defeat on road safety.
Mark.