[asciident]

It's an interesting idea. Wouldn't the cost of raising funds, replacing all the signs, etc. be also damaging? What about having a clear "no speeding at all on speeds over 50mph" announcement, and start a campaign to enforce speeding even at 0.1mph over? That would quickly normalize driving at 10-15 miles under.

[cjohnson318]

I don't think replacing signs would be large line item compared to our foreign wars budget, at any rate, all of that money would flow back into the economy pretty quickly as those workers spent their paychecks.

Even without signage, I imagine word of a new national speed limit would travel *pretty* quickly.