Speed limit signs state 55. Signs intermingle that state 45 due to construction in the area. Construction was separated by concrete barriers from hwy. the police officer was behind a small hill where you wouldn’t see him when he pulled some one over. Not to slow people but to write tickets most time when police want to slow people for the safety of the workers they set up on the side of the road with their flashers on. Between the time of eight hours they were still writing tickets as we passed back through.