IMSA Signal Tech Level 1 Glossary Exam Questions With Complete Solutions Updated and Verified
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IMSA Signal Tech Level 1
Institution
IMSA Signal Tech Level 1
IMSA Signal Tech Level 1 Glossary Exam Questions With Complete Solutions Updated and Verified
Accessible Pedestrian Signal
Device conveying pedestrian timing in non-visual format (MUTCD)
Active Grade Crossing Warning System
Signals informing road users of approaching trains at crossings (...
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IMSA Signal Tech Level 1 Glossary Exam Questions
With Complete Solutions Updated and Verified
Accessible Pedestrian Signal
Device conveying pedestrian timing in non-visual format (MUTCD)
Active Grade Crossing Warning System
Signals informing road users of approaching trains at crossings (MUTCD)
Active Sensor
Sensor emitting energy reflected from objects in its zone
Actuated Controller
Receives data from sensors to adjust signal timing
Actuated Operation
Signal operation based on detector activation (MUTCD)
Actuation
Triggering a signal phase change via detectors (MUTCD)
Advanced Transportation Controller (ATC)
Standardized platform supporting Intelligent Transportation Systems
Alternating Current (ac)
Current reversing direction at regular intervals
American Wire Gauge (AWG)
Standard wire gauge for nonferrous electric wire
Americans with Disabilities Act of 1990 (ADA)
Ensures equal opportunities for persons with disabilities
Ampere
Unit measuring electron flow rate through a conductor
Analog
Design using continuously varying voltages
, Approach
Traffic lanes moving towards an intersection (MUTCD)
Arterial
Main street with preferential right-of-way
Auxiliary Equipment
Additional devices enhancing a controller assembly (NEMA)
Average Day
Typical day representing normal traffic volumes (MUTCD)
Back Panel
Board in controller cabinet with terminals and fuses
Background Cycle
Master controller cycle length outputting system reference
Band (Green Band)
Elapsed time allowing vehicles through an intersection
Beacon
Traffic signal operating in a flashing mode (MUTCD)
Cable
Insulated conductors wrapped together
California Department of Transportation (Caltrans)
Manages California's highways, rail services, and airports
Call
Registration of right-of-way demand at a controller unit (NEMA)
Canadian Electrical Code (CEC)
Standards addressing electrical product safety in Canada (CSA)
Changeable Message Sign (CMS)
Traffic control device for real-time information (ITS)
Circuit
Closed path followed by an electric current
Coil
Conductor wound on a form using electromagnetic induction
Conductor
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