INSTALLATION ORDER
This is normally the first TTC device installed.
What is The first advance warning sign, typically Road Work Ahead?
This point should be located first before measuring the setup.
What is The beginning of the work space?
This is X (Advanced Warning Sign) spacing for signs for a 35 mph urban arterial roadway.
What is 350 feet?
At 25 mph with a 10-foot lane, the merging taper has this length.
What is 105 feet?
These features should be checked before traffic enters the new pattern.
What is Device placement, sign visibility, taper alignment, and clear travel path?
TTC devices are installed in this direction relative to traffic flow.
What is with the flow of traffic?
This table also provides the needed buffer distance.
What is The stopping sight distance table?
This is X spacing for signs for a 40 mph rural roadway.
What is 350 feet?
This is the shifting taper length for a 25 mph roadway with 10ft lanes
What is 55 feet?
These safety features must remain open and unobstructed around a flagger.
What is The escape route and required sight distance?
A TTC zone is normally removed in this direction relative to traffic flow.
What is against the flow of traffic?
At 35 mph, this stopping sight distance and buffer space length is _______ ft.
What is 250 feet?
This is X spacing for signs for a 50 mph rural roadway.
What is 500 feet?
At 25 mph, the devices in the tangent may be spaced no farther than _______ft apart.
What is 40 feet?
Nonapplicable signs require this action during teardown.
What is cover or remove them promptly?
These are typically installed before the work area is occupied to warn road users or road work.
What is to advanced warning signs?
At 45 mph, a flagger must be visible from at least ______ ft.
What is 360 feet?
This is X spacing for signs for a 60 mph rural highway.
What is 500 feet?
The number of flaggers needed for a 4-way intersection.
What is Three?
The flagger who holds traffic while devices are uninstalled.
Who is the Termination Flagger?
Workers must verify that each ______ remains visible and properly placed.
What is device?
These three roadway facts are needed for many taper calculations.
What are Posted or operating speed, lane width, and the type of taper?
This is X spacing for signs for a 70 mph freeway.
What is 1,000 feet?
During flagging operation in an intersection, the traffic signal requires this setting.
What is set to all-red flash or turn it off?
This flagger holds traffic when devices are being installed?
Who is the Advanced Flagger?