As you come into Marion from the west the speed limit goes from 55 to 45 to 35. Just as it goes to 35 the road curves slightly to the right. The city radar cop sits on the left, which is out of your line of sight until you make the curve, then he’s got ya.
Since economic development in Marion county is difficult I suspect that traffic (speeding) fines make up a substantial portion of this city’s income.