A leave of absence of a duration over ninty (90) days.
A contract that provides for an indefinite quantity, within written limits, of specific supplies or services to be furnished during a fixed period, with deliveries to be scheduled by placing orders with the contractor. The contract requires the MTA to…
Activities that are an unbiased and independent evaluation of all the sampling and testing (or inspection) procedures used in the QA program.
A failure which occurs without being related to the failure of any associated item.
A sample taken without regard to any other sample that may also have been taken to represent the material in question.
A file format in which records are organized and can be accessed according to a pre-established key that is part of the record.
The information conveyed by the aspect from a fixed signal, a cab signal, or a hand signal as viewed by a train operator.
Electric locking of control circuits which prevents actions that would result in an unsafe condition for a train movement if a signal, switch, or if the operative unit fails to make a movement corresponding to a control command. (NTSC)
The point at which the train control or cab signal impulse is transmitted to the rail vehicle apparatus from the track element. (TRB)