Questions Containing 132 Terms with
Definitive.
What are the two major categories of pavement? - Answer: Flexible and rigid
What are some types of flexible pavement? - Answer: Grass, dirt, gravel and
asphalt
,Why are paved surfaces necessary at airports? - Answer: To support the critical
loads imposed on them; to produce a smooth, skid-resistant and safe-riding
surface
Airport surfaces are distinguished by operational control and FAA design standards
into what two areas? - Answer: Movement and non-movement
What constitutes the movement area on an airport? - Answer: Runways and
taxiways. At ATCT controlled airports, the surfaces under ATC control. These areas
must meet Part 139 design restrictions.
What constitutes the non-movement area of an airport? - Answer: Taxiways and
aprons not under ATCT control
How are movement and non-movement areas determined at an airport with an
ATCT? - Answer: By Letter of Agreement (LOA) between the airport and the ATCT.
What is the benefit of using a rigid pavement such as Portland Cement Concrete? -
Answer: It is about half the lifetime cost of asphalt, with a service life of 30+ years
versus 5-15 years for asphalt. Concrete is more expensive up front though, so
asphalt is common at low revenue airports such as GA.
, What are two major elements that make pavements deteriorate? - Answer:
weathering and aircraft loads
For bearing strengths of 12,500lbs or greater, what method is used to express the
effect of an individual aircraft on different pavements? - Answer: Comparing ACN
to PCN (Aircraft Classification Number-Pavement Classification Number) ACN less
than or equal to PCN
What does the Pavement Classification Number (PCN) represent to the
operator/pilot? - Answer: PCN is the maximum pavement bearing strength for
unrestricted aircraft operations.
What is the Load Classification Number (LCN) used to describe? - Answer:
Pavement bearing strengths less than 12,500lbs
What are the five major categories of pavement distress? - Answer: cracking, joint
seal damage, disintegration, distortion, loss of skid resistance
Edges of abutting pavement or pavement and other areas must be no more than
how many inches in elevation difference? - Answer: 3 inches