Word |
Description |
Failsafe |
As in output relay design, a type of output-relay design that produces a constant call, thereby keeping traffic moving, in the event that the detector unit fails. |
Farad |
A unit of capacitance, usually expressed in microfarads (uF), on millionth of a farad. |
Feeder Cable |
See Lead-In Cable. |
FHWA |
Federal Highway Administration |
Field |
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Field of Influence |
See Zone of Detection. |
Freeway Surveillance |
Process or method of monitoring freeway traffic performance and control system operation. |
Frequency |
The number of times an alternating current repeats its cycle in 1 second. |
Full-Traffic-Actuated Controller |
A type of traffic actuated controller assembly in which means are provided for traffic actuation on all approaches to the intersection (NEMA).
See Also: Traffic-Actuated Controller Assembly, Semi-Traffic-Actuated Controller, and/or Pedestrian-Actuated Controller Assembly |
Full-Traffic-Acuated Controller Assembly |
A type of traffic-actuated controller assembly in which means are provided for traffic actuation on all approaches to the intersection. |