Heading out of Greensboro into Sanford on 421, the limit is 45 mph when in actuality everyone usually drives about 55mph. It makes no sense to drive that slowly. It’s a ridiculous speed limit, and the day I got stopped, I noticed about 5 (five) other cars pulled over. They get you leaving the city and Also coming into the city. Just be careful, because the limit doesn’t actually go up until the first light After you have left the city. It jumps from 45 to 65! Be careful! They sit in the median, between the couple of trees there and get you the very second you come through past the McDonalds on MLK (which is what 421 is within city limits.) Be Careful!