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There was a commenter on a similar article a few months ago arguing that speed limits being excessively low is just for trapping drivers and there's no reason for there to ever be speed limits below 30mph.

That's the kind of person I expect who speeds in a school zone.

The city can either put up a sign, and then have an extremely expensive officer watch over that sign 24/7, or they can put in a little bit more work up-front that sets up proper traffic calming procedures, and then never need the officer.

Signs are low cap-ex but high op-ex technique that harms overall safety and causes thousands of deaths per year.

Automated speed cameras are cheap and highly effective.

There's one of those in the thread right now.

Where I live (Los Angeles), probably 90% of drivers

Same in Oxnard, they put a school zone on a divided ave. No one slows down. And there's a bus stop on either side so if everyone obeyed the "when children present" it would be a huge bottleneck. Even cops fly through it.

Especially when school is not in session and children are not present.

How much is that likely to bias the dataset?

>Who speeds in a school zone?

Marques Brownlee