Of course, all routes to school should be safe.
And schools should be located on collector streets in real neighbourhoods and not in isolated locations outside of built-up areas.
Whilst in Montreal, I noticed intersections marked as shown in the picture below, presumably identifying intersections with a higher number of school kids using the crossing. Of course, I suspect the well-frequented intersections enjoy “safety in numbers” and the real risk lies in less-used intersections, which are less likely to get marked.
Which is yet another reason we should have lower speed limits, and roads designed to restrict speeds to safe speeds.
I do not know if they also use the traditional pentagonal school zone signs, which tend to be located mid-block just before the school.
Mind, I always trained my kids that is generally safer to cross the street between intersections (no turning vehicles, fewer distractions for motorists) and continue to do so myself. Note that in Montreal, there is no right turn on red. Nor in NYC.
An advanced pedestrian green signal recently appeared at Preston-Somerset, an intersection I use daily. I notice how many vehicles make “false starts” when the ped signal turns green. There must be a PHD paper in this somewhere … why do motorists watch the ped signal instead of the vehicle signal? What will happen when the ped signal gives the advance green for cyclists? Are countdown signals more dangerous because they encourage motorists to speed up to catch the dying green light?