IMSA Workzone Traffic Tech Study Guide – Complete
With Solutions
What is a long term stationary? Right Ans - Work that occupies a location
more than 3 days
What is intermediate term stationary? Right Ans - 1 daylight period up to 3
days or nightime work lasting more than 1 hour
What is short term stationary? Right Ans - Daytime work that occupies a
location for more than 1 hour within a single daylight period.
What's is short duration operations Right Ans - Work that occupies a
location up to 1 hour
Mobile operations? Right Ans - Work activities that move along the road
either intermittently or continuously?
What's the urban ( low speed) spacing? Right Ans - 100/100/100 ft
What's the urban ( high speed) spacing ? Right Ans - 350/350/350 ft
What is the distance rural spacing ? Right Ans - 500/500/500 ft
What is expressway/ freeway spacing ? Right Ans - 1,000/1,500/2,640 ft
What is type A arrow boards used for ? What's the legibility distance ?
Right 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 ?
Right Ans - Intermediate speed facilities or mobile operations on high speeds
roadways and 3/4 miles
What is type A beacons and what are they used for?
What is the visibility? Where can it be mounted Right 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 Right 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 ?
Right Ans - High speed, high volume facilities and one mile distance
What is type D arrow boards used for ? What's the legibility distance ?
Right Ans - Intended to use in authorized vehicles and shall conform to the
shape of the arrow. And 1/2 mile
What's are type 1 barricades used for ? What's the minimum height ? And the
minimum length ? What's the size of the rail ? Right Ans - Used on low
speeds
36 inches in height
24 inches in length
Rail size - 8 to 12 inches
What's are type 2 barricades used for ? What's the minimum height ? And the
minimum length ? What's the size of the rail ? Right Ans - Use for
expressways and freeways
36 inches in height
Minimum length of 24 inches
8 to 12 inches rails
What's are type 3 barricades used for ? What's the minimum height ? And the
minimum length ? What's the size of the rail ? Right Ans - Used to close
roadways
Minimum height of 5 ft
Minimum length of 4 ft
What is type C beacons and what are they used for?
With Solutions
What is a long term stationary? Right Ans - Work that occupies a location
more than 3 days
What is intermediate term stationary? Right Ans - 1 daylight period up to 3
days or nightime work lasting more than 1 hour
What is short term stationary? Right Ans - Daytime work that occupies a
location for more than 1 hour within a single daylight period.
What's is short duration operations Right Ans - Work that occupies a
location up to 1 hour
Mobile operations? Right Ans - Work activities that move along the road
either intermittently or continuously?
What's the urban ( low speed) spacing? Right Ans - 100/100/100 ft
What's the urban ( high speed) spacing ? Right Ans - 350/350/350 ft
What is the distance rural spacing ? Right Ans - 500/500/500 ft
What is expressway/ freeway spacing ? Right Ans - 1,000/1,500/2,640 ft
What is type A arrow boards used for ? What's the legibility distance ?
Right 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 ?
Right Ans - Intermediate speed facilities or mobile operations on high speeds
roadways and 3/4 miles
What is type A beacons and what are they used for?
What is the visibility? Where can it be mounted Right 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 Right 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 ?
Right Ans - High speed, high volume facilities and one mile distance
What is type D arrow boards used for ? What's the legibility distance ?
Right Ans - Intended to use in authorized vehicles and shall conform to the
shape of the arrow. And 1/2 mile
What's are type 1 barricades used for ? What's the minimum height ? And the
minimum length ? What's the size of the rail ? Right Ans - Used on low
speeds
36 inches in height
24 inches in length
Rail size - 8 to 12 inches
What's are type 2 barricades used for ? What's the minimum height ? And the
minimum length ? What's the size of the rail ? Right Ans - Use for
expressways and freeways
36 inches in height
Minimum length of 24 inches
8 to 12 inches rails
What's are type 3 barricades used for ? What's the minimum height ? And the
minimum length ? What's the size of the rail ? Right Ans - Used to close
roadways
Minimum height of 5 ft
Minimum length of 4 ft
What is type C beacons and what are they used for?
