Federal Aviation Administration
First African Methodist Assistance Corporation
The movement of a train over the points of a switch which faces the approaching train. See also Trailing Movement.
A track switch the points of which face toward approaching traffic. (NTSC)
An analytical technique for identifying the major interrelationships between variables, frequently used in transportation demand analysis. (TRB)
A characteristic design which permits continued operation in spite of the occurrence of a discreet failure. (NTSC)
A system characteristic which permits continued operation on occurrence of a failure while remaining acceptably safe. A second failure results in the system remaining safe, but non-operational. (NTSC)
A design principle in which each of the elements which make up a system is analyzed to determine the potential consequence of failure of that element, alone or in combination with any or all other elements of the system, to…
A characteristic of a system and its elements, the object of which is to ensure that any fault or malfunction will not result in an unsafe condition. (NTSC)
A component which has ceased to perform its intended function. (NTSC)
