The Arkansas Highway
Police Division is testing new infrared technology for inspecting commercial
trucks and buses for bad brakes and other mechanical problems.
The latest test of the
Infrared Inspection System (IRIS) near the weigh station on Interstate 40
in Mayflower on Sept. 27 is part of a three-month evaluation period by the
state. Mounted atop an unmarked van, IRIS screened trucks at highway speeds
just before they approached the weigh station entrance ramp. When IRIS detects
a problem, officers in the van notify weigh station officers of which trucks
IRIS uses infrared heat sensors to detect faulty brakes as
well as exhaust leaks, over-inflated tires, hot wheel-bearings and other
The U.S. Department of
Transportation tested the system in Kentucky, Georgia, North Carolina and
Tennessee during a two-year pilot program beginning in 1999.