There is a 30 mile speed zone at the beginning of McKeever Rd. heading west and continues for approx 300 yards to the entrance for the drive to Houston Southwest Airport and at the airport entrance, the speed limit goes to 40 mph heading west, and dropping to 30 heading east w/o any advance notice, and is somewhat disguised and easily missed at the entrance to the airport since the sign is right at the airport entrance. I have been on this road about 5 times in the last two months to access Houston Southwest airport, and never for more than 30 minutes at a time, but there has been a police officer attending a traffic citation each and every time I have been to Houston Southwest. After receiving a citation myself heading east on this 300 yard stretch of McKeever, it is obvious the 30 mile speed limit is a trap. Not saying the traffic should not slow down before the McKeever/Hwy 6 feeder intersection, but this stretch is setup to be a very profitable speed trap.