IMSA level 1 Certification Prep-Questions with Complete Solutions |Latest 2024/2025
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Course
IMSA level 1 Certification
Institution
IMSA Level 1 Certification
What happens after the green interval and before the red interval, and how is this change interval figured? Yellow interval, and is figured by using the approach speed of the traffic.
Name the three traffic signal systems? Closed loop, central computer, hybrid systems.
What's OSHA? Occu...
, What is the difference between concurrent and sequential
_;- _;- _;- _;- _;- _;- _;- _;-
phases? Concurrent phases, phases that run together.
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Sequential phases, are phases that run one at a time._;- _;- _;- _;- _;- _;- _;- _;- _;-
I have a dual ring controller and all my through phases are even,
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what do I mean? _;- The dual ring phases are 2,4,6,8
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What is the cheapest way to coordinate a corridor of signals?
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What needs to stay the same throughout the day?
_;- Time _;- _;- _;- _;- _;- _;- _;- _;-_;- _;- _;-
based coordination, and cycle length.
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Explain the white walking man, the flashing orange hand on a
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ped head and how is this time figured?
_;- The white walking
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man is the ped head walk interval, and the ped change
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clearance interval is the flashing orange hand._;- _;- _;- _;- _;- _;-
What makes up the green interval?
_;- Initial green time, _;- _;- _;- _;- _;-_;- _;- _;- _;- _;-
passage/extension/gap time, and max green time. _;- _;- _;- _;- _;-
At most intersections what are phases 2,6 called, and phases 4,8
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called Phases 2,6 are called Main Street, and 4,8 are called
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side street._;-
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