Are speed boards accurate?

COLORADO SPRINGS, Colo. — Every time you drive I-25 these days, you’re sure to hit one of the many construction zones.

In the Springs you’ll drive past a speed board that tells you how fast you’re going, but just how accurate are these boards? And are they doing the job they’re supposed to?

CDOT said the main goal of the signs is to get people to slow down and be safe in work zones, but there was some disagreement amongst drivers about just how accurate the speed readings are.

“I think they’re pretty accurate. When I look down at my speedometer it’s fairly close. I don’t know if it’s positive right on, but it’s fairly close,” said Hodie Hazard.

“I think they’re a little inaccurate as far as the actual reading goes. There’s been times I’ve been going five miles over and it’s telling me I’m going the speed limit,” said Alex Tafoya.

CDOT said there’s a reason why the speeds are not always 100 percent spot on.

“It is a wide spectrum radar. It’s not necessarily going to pick up everybody’s speed, or if it does pick up multiple cars it’s going to report it fairly quickly and so you’re not necessarily, especially in peak hour, going to see your speed representative,” said CDOT spokesman Mark Andrew.

They are noticing people going slower and being safer because of the boards, but some drivers disagreed with that assessment.

“I think maybe for the first 20 feet they are. After that I think people think differently of them and speed up after they pass by,” said Tafoya.

“They work for me. When I see one I look at my speedometer and I generally have to slow down, because I’m generally going faster than what they say,” said Hazard.

“I definitely don’t think they do the justice that needs to be done. It’s more effective to have a police officer on the side of the road to scare people rather than something that’s telling you how fast you’re going,” said Tafoya.

CDOT said the goal of the boards isn’t to catch people and to write tickets. It’s to give feedback to drivers so they’re safer on the roads in construction zones. But officials said if they notice a significant increase in the speeds the boards track, they do usually increase law enforcement in the zone to stop speeders.

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