The sign above says the turnoff for Columbia is in one-quarter of a mile. You can see the turnoff in the distance, under the bridge across I-495.
One quarter of a mile is 1,320 feet. I make the turnoff, in a Prius, in 8 seconds. That’s 1320 feet divided by 8 seconds, or 165 feet per second, or 112.5 miles per hour.
Either my Prius was moving very, very fast, on wet roads, or this sign is horribly flawed when describing the distance.
This highway sign claims it is a quarter-mile to the turnoff in the (near) distance. Hah! Hah, I say!