Narrative:

A B737-700 contacted me leaving the runway. I instructed him to hold short of runway 22 on taxiway mike. He read back the hold short instructions. Ops 5 was conducting driver training at the time. Ops 5 requested to cross the from the west side of the airport to the east side of the airport. I instructed ops 5 that they needed to cross at a different location. Ops 5 then moved to a crossing that did not require him to travel down the runway; only to cross the runway. I then coordinated my crossings with local control; and instructed ops 5 to cross runway 17 and to hold short of runway 12R on H. I then gave instructions to numerous other aircraft. I then saw the B737-700 taxiing extremely fast and realized he was not going to be able to hold short of the runway. I saw a super king air 200 on departure roll and yelled for the B737-700 to 'stop stop stop stop.' after listening to the tape; the ops vehicle had drawn out his response and had come back with his hold short again without using his ops 5 identification; and apparently the B737-700 took ops 5 instruction(s). I never instructed the B737-700 to cross runway 22. I never heard him change his gate or hold short instructions; I believe due to frequency congestion. Driver training should be done at less congested times.

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Original NASA ASRS Text

Title: HOU Controller described a runway incursion involving an inbound air carrier; the reporter listing communications problems and airport driver training as contributing to the event.

Narrative: A B737-700 contacted me leaving the runway. I instructed him to hold short of Runway 22 on Taxiway Mike. He read back the hold short instructions. Ops 5 was conducting driver training at the time. Ops 5 requested to cross the from the west side of the airport to the east side of the airport. I instructed Ops 5 that they needed to cross at a different location. Ops 5 then moved to a crossing that did not require him to travel down the runway; only to cross the runway. I then coordinated my crossings with Local Control; and instructed Ops 5 to cross Runway 17 and to hold short of Runway 12R on H. I then gave instructions to numerous other aircraft. I then saw the B737-700 taxiing extremely fast and realized he was not going to be able to hold short of the runway. I saw a Super King Air 200 on departure roll and yelled for the B737-700 to 'STOP STOP STOP STOP.' After listening to the tape; the Ops vehicle had drawn out his response and had come back with his hold short again without using his Ops 5 ID; and apparently the B737-700 took Ops 5 instruction(s). I never instructed the B737-700 to cross Runway 22. I never heard him change his gate or hold short instructions; I believe due to frequency congestion. Driver training should be done at less congested times.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.