Your comment doesn't mean this is, in fact, a speed trap. Nonetheless, I do believe it is. The speed limit is inadequately posted according to the TN and Federal MUTCD's. TN has adopted the Federal MUTCD in its entirety. The Federal MUTCD requires that in reduced speed areas such as Hwy 76 have multiple postings to remind users they are in a reduced speed area. The area immediately to the east and west of the Hwy is rural farm land. The city annexed the highway between the bypass and the interstate to capitalize on the commercial zone next to I-40. This stretch of roadway is 2.2 miles long. Approximately 1.75 miles of this area is posted at 50 MPH. The commercial area next to I-40 is posted at 45 and signs are placed every 0.5 miles. North of that area, the area that appears to be rural farm land is 50 MPH with signs placed every 1.5 miles. Not enough frequency to remind users of the reduced speed limit. It can be assumed you are in rural farm area outside of the Municipality and therefore assume the State's Maximum Speed Limit of 65 MPH applies. Fight it by claiming it is inadequately posted! It will give you the right to challenge at a higher court.