A Kustom Signals, Inc. SMART I speed trailer has been running 24 hours a day, seven days a week at the Raleigh Durham International airport, preventing reckless driving.
Using AC power, the trailer manufactured in September 1993 has been running all day every day since the airport purchased the speed monitoring device. The SMART trailer is still helping to increase safety and reduce speeding nearly 30 years after it was first manufactured.