Diamond Knowledge Base

All 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Word	Description
Hand Hole	See Pull Box.
Henry (h)	The measure of inductance, defined as the inductance of a circuit in which a counter electromotive force of one volt is generated when the current is changing at the rate of one ampere per second.
Hertz (Hz)	A term replacing cycles-per-second as an indication of frequency.
Hold On Line	A connection that modifies a controller from full-actuated, isolated operation to semi-actuated, system controlled operation. It is sued as the basic tie from the local intersection to the system master.
Home Run Lead	Home Run Cable. See Lead-In Cable.
Honda 100	A small motorcycle commonly considered to be the smallest registered motor vehicle. It is used as the baseline for motorized vehicle detection.
HPMS	Highway Performance Monitoring System
Hz (Hertz)	A measure of frequency in cycles per second.