Imsa Workzone traffic tech study Guide
Questions and Correct Answers/ Latest
Update / Already Graded
What is a long term stationary?
Ans: Work that occupies a location more than 3 days
What is intermediate term stationary?
Ans: 1 daylight period up to 3 days or nightime work lasting
more than 1 hour
What is short term stationary?
Ans: Daytime work that occupies a location for more than 1
hour within a single daylight period.
What's is short duration operations
Ans: Work that occupies a location up to 1 hour
Mobile operations ?
Ans: Work activities that move along the road either
intermittently or continuously?
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What's the urban ( low speed) spacing?
Ans: 100/100/100 ft
What's the urban ( high speed) spacing ?
Ans: 350/350/350 ft
What is the distance rural spacing ?
Ans: 500/500/500 ft
What is expressway/ freeway spacing ?
Ans: 1,000/1,500/2,640 ft
What is type A arrow boards used for ? What's the legibility distance ?
Ans: Low speeds locations such as urban streets and 1/2 mile
What is type B arrow boards used for ? What's the legibility distance ?
Ans: Intermediate speed facilities or mobile operations on high
speeds roadways and 3/4 miles
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What is type A beacons and what are they used for?
What is the visibility? Where can it be mounted
Ans: Flashing low intensity warning lights
During nightime hours
They warn motorist from potential hazard
Mounted on channelizing devices
Visible on clear night from 3,000 ft
What is type B beacons and what are they used for?
What is the visibility? Where can it be mounted
Ans: High intensity warning lights
Both day and night
Design to operate 24 hours
Mounted on advanced warning signs
Visible on sunny day, 1,000 ft
What is type C arrow boards used for ? What's the legibility distance ?
Ans: High speed, high volume facilities and one mile distance
What is type D arrow boards used for ? What's the legibility distance ?
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