Why traffic control is needed
This is the most common need for traffic control
What is motor vehicle accident?
At 50 mph, the difference in feet between stopping on dry pavement vs wet pavement
What is 137 feet longer? (183' vs 320')
On a sunny day, a flagger should not stand here
What is the shade?
This weather caused hazard can blind drivers
What is sun shining off wet pavement?
These can only be used during certain wet times of the year
What are flares?
This would require not only traffic control but also a hazardous material response
What is a spill?
For every one mile per hour, a foot apart
What is the correct distance between cones on the roadway?
A 15 degree angle in front of and facing the flagger
What is the proper positioning of the light illuminating the flagger at night?
Very low visibility and longer stopping distances
What are some effects of heavy rain or snow?
Carried on 8979, these are very effective at telling a motorist not to proceed
What are "Road Closed" signs?
The primary focus of these events is not on controlling the flow of traffic
What is a structure fire?
At a posted speed limit of 25 mph, 75' is the proper distance for this element of the crash scene
What is a buffer zone?
On the shoulder or in the closed lane
Where should a flagger be positioned?
What is something that may happen when a driver ignores traffic control
This device should be used at night to illuminate the flagger
What is a scene light (Pelican, Milwaukee)?
People fleeing from this event would probably need traffic control
What is a wildfire?
One foot over from the previous placement
What is the proper distance to place a cone when forming a merge pattern?
Flag from the centerline to be more visible to approaching traffic
After two or three vehicles have stopped, what can a flagger do?
A rear end collision is possible
Without advance warning, what can happen to drivers coming on the scene?
This sign is pink in color and should be deployed well ahead of each side of the scene
What is a "Wreck Ahead" sign?
It rarely happens, but when it does, drivers need to be told to turn around
1000 feet is the correct minimum distance that a driver can see this
What is the minimum sight distance for a flagger to be seen by oncoming traffic?
No one
Who does a flagger stand with at the flagger duty station?
Get the license plate and vehicle description.
What should a flagger do when encountering a road rage or inebriated driver?
This device tells the motorist whether to proceed or remain
What is a "Stop/Slow" paddle?