Tire pressure ranges from 220 to 250 pounds per
square inch on new generation aircraft like the
Boeing 787 and Airbus 350. The vehicle simulator
has an automated heating system that allows
engineers to replicate and analyze the damage
that heavy commercial jets can cause to the top
asphalt layer when runways are hot. The vehicle
was designed to simulate the behavior and weight
of aircraft tires, and can show how repetitive
aircraft operations affect pavement.
FAA engineers will move the Heavy Vehicle
Simulator-Airfields (HVS-A) by remote control
between four outdoor pavement test strips and
two strips inside a new building, to allow for
testing in a controlled environment. FAA
engineers recently used the HVS-A to test the
performance of airfield paint markings. The
HVS-A is 130 feet long, 16 feet wide, 14 feet
tall and weighs 240,000 pounds.
The new center will enable the FAA to research
environmentally-friendly airport pavement
materials such as warm-mix and recycled asphalt
pavements. The FAA’s goal is to expand the use
of “greener” materials, and pavement materials
that can be modified to enhance pavement
durability, workability and strength. This will
help airport operators save money by lowering
the costs of initial construction, maintenance,
and repairs, and will provide a longer pavement
life.
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