I work in infrastructure technology on the Tollroads. People drive fast in general; its impossible to get around just doing the speed limit. You will get rear ended or cause an accident for doing so!
In work zones, people get even more impatient. Last week some kid jumped a median going 110mph and hit oncoming traffic head on, no joke.
When we have a closure going on showing the speed limit is reduced to 55 mph, fines blanlabla and we are testing out a new vehicle dection system, the measured speeds on 50+ test subject cars are typically 10-20 above the normal speed limit.
And not to mention this is while every other person i see on the road is on their phone lol