Of course, a speed trap, like beauty, is in the eye of the beholder. Not that the two have other kinds of resemblance.
Many states have their notorious speed traps. There is Ludovici, GA, known for having been located on a north-south route that was heavily trafficked. And Hopewell, VA: a small community that generated about $1.8 million per year from traffic fines. It has been referred to as The Million-Dollar Mile by AAA. Stringtown, OK generated 76% of its budget from traffic fines! Some other speed traps to mention are located in Washington, LA, Lawtey, FL, Mound City, IL, and Killen, AL.
However, some states, notably Florida and Oklahoma, have enacted state laws that limit the amount of revenue that towns can obtain from traffic fines. Virginia recently passed a law setting a limit of 30% of a town's budget can be generated through traffic fines; hopefully limiting the attraction for having speed traps or at least getting the state in the act. The state would get the excess revenue generated by the speed trap cap into a state literacy fund.
So what is likely to occur in places where this would happen?
Well, some places might seriously maintain a speed trap for only part of the year, and do it less in other times. In other words, go where the money is!
The state getting the amount over the cap can result in the state having a vested interest in the speed trap. So, if the locals don't set one up for part of the year, the State Police might have to fill in the gap. Particularly if the money in excess of the cap goes to something that the state always needs to increase revenues, like education or state employees' payroll!
Or they can follow the example of Chicken Bristle, KY, and establish a Speed Trap gift shop, where speeding Midwesterners can purchase souvenir t-shirts, mugs, lucky key chains, and other souvenirs of Chicken Bristle. Who knows? This gift shop, because of its eccentricity, might cause less of the speeding that the speed trap was supposed to control.*
There's more than one way to skin a possum, as they say there.
But there's another way. Erect a billboard warning of a speed trap ahead:
Or this one that years ago a former Georgia Governor had erected. There must be an interesting story behind this:
*This paragraph is purely fictional.