Sixteen automated traffic enforcement cameras in Des Moines stopped operating Monday after the Iowa DOT declined permits under a new state law.

It’s no secret that many drivers aren’t crazy about traffic cameras. But many communities in Iowa use them and point to the data. From reducing collisions with injury to bringing extra revenue, fixed traffic cameras have popped up in cities like Marion,

Most of Iowa’s traffic cameras that issue speeding tickets in permanent locations must be turned off after the Iowa Department of Transportation denied the vast majority of cities’ requests to operate them.