One more advantage of this proposal: it would give some insight into who was right in this debate. If traffic camera roll out continues at the same pace after

One more advantage of this proposal: it would give some insight into who was right in this debate. If traffic camera roll out continues at the same pace after this measure is passed, we could conclude the cities are mostly motivated by public safety. But if, as I suspect, traffic cameras installation stalled, we've have good (though not incontrovertible) evidence that they are really just motivated as a revenue source.