Exam (elaborations)
IMSA Signal I
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Exam of 4 pages for the course IMSA Signal I at IMSA Signal I (IMSA Signal I)
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IMSA SIGNAL I QUESTIONS ANDANSWERS
k Safety Education - Primary function of the IMSA
International Municipal Signal Association - IMSA Stands for:
Circular Red, Circular Green - What are the sections of a ramp meter signal?
Personal Protective Equipment - PPE Stands for:
Ensure advance warning devices have not been removed or relocated - A work zone supervisor is
responsible for:
three-section traffic signal with circular red, circular yellow, smaller circular yellow indications - Example
of the configuration of an Emergency-Vehicle Control signal
Min green, passage time, max green - The green interval is made up of what three components?
Min, max, ped - What are the three typical types of recall features of a traffic signal controller?
Split - In a coordination plan, what is the number of seconds given to each phase at the intersection?
Time-based coordination - which of the following traffic signal coordination methods is typically the least
expensive?
The elapsed time between the start of a specific display until that display comes up again - cycle length
the elapsed time between the start of a specific display until that display comes up again - What is a
definition for cycle length?
They cannot occur at the same time - What is a characteristic of a sequential phase?
Minimum time that the green indication must be displayed - A definition for initial green time
Yield point - the only point in a cycle of a coordinated traffic signal controller where the major-street
phase is allowed to end
Rigid and free-swinging - two common terms to describe traffic signal supports and signal heads are:
messenger wire - in a single wire with a single point attachment configuration, the wire that supports the
signal heads is called the:
8 in, 12 in - the two nominal diameter sizes for vehicular signal lenses are:
make signal visible from a specific lane - the purposes of *louvers* is to:
Rigid steel conduit, high density polyethylene (HDPE), PVC schedule 40 - conduit types for traffic signals
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