Officers sit on side streets that intersect the access rd. The speed limit on Mopac is 65. Coming down a very short exit ramp to a 35mph zone can be tough, and most of us are not used to heavy braking down a straight off-ramp, so we get caught as we enter the access rd. Most people are still traveling somewhere in the mid-forties when the cop pops out behind them. There are no warnings given. The traps are intermittent. Take the Enfield exit if you can’t brake hard coming off the highway.