ACtrafficengr
Civil/Environmental
How much traffic can a flagger handle?
I know it's 22 months away, but upcoming requirements for minimizing work zone delays will affect all highway agencies recieving federal funds.
FHWA's guidance ( shows a CalTrans policy with three levels of planning:
I was thinking that on two-lane roads, traffic too heavy for flagger control would be a good threshhold. Does anyone have a ballpark volume where flagger control starts to break down? I know it will vary depending on site conditions, flagger skill, etc.
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"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail."
Wm. Phelps Eno, ca. 1928
I know it's 22 months away, but upcoming requirements for minimizing work zone delays will affect all highway agencies recieving federal funds.
FHWA's guidance ( shows a CalTrans policy with three levels of planning:
*Blanket Transportation Management Plan (TMP), for minor projects with little delay
*Minor TMP, which will have some mitigation required to manage delays due to lane closures, etc.
*Major TMP, for large scale projects that may have a significant off-site delay management component, public information, etc.
I was thinking that on two-lane roads, traffic too heavy for flagger control would be a good threshhold. Does anyone have a ballpark volume where flagger control starts to break down? I know it will vary depending on site conditions, flagger skill, etc.
------------------------------------------
"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail."
Wm. Phelps Eno, ca. 1928