There is an abandoned turnoff at the bottom of the hill immediately following McCollum Airfield and the Industrial Park on the right hand side of the highway. Usually, two City of Kennesaw police officers will sit in this turnoff with their black patrol cars with no lights on rendering them invisible, and tag oncoming motorists coming down a steep grade, then send their partner to intercept you. The speed limit on this road is posted as 45mph, but traffic moves on average to 55-60mph. There is a traffic light at the top of the hill, and they generally target the vehicles leading the pack away from the green light…My advice? Don’t be the first car in line, if you are, be sure NOT to break away from the pack, and if at all possible, stay in the left lane and ride in someone’s blindspot until you clear this area. As with all speed traps, user awareness is key and it’s reccomended that you use your head and not rely on this source completely, they will move around to catch you off guard, so beware.