[Sir Gawain]

Ok, my second citation is slightly different, but I'm basically arguing the same thing. The signal time might not have been reduced, but signals with shorter times were sought out, and that *was* deliberate, and it's also easily arguable that it caused a safety hazard based on studies of accidents at intersections with cameras.

[Alberta's Child]

The signal time might not have been reduced, but signals with shorter times were sought out . . .

You are probably 100% correct in this case. Which means that almost any municipality that installs these cameras and insists that it is doing so to "promote safety" is full of crap. But that is different than saying that the engineers got it wrong. The difference between an engineer and a politician is that the engineer pays the price for "getting it wrong."