Profile

unixronin: Galen the technomage, from Babylon 5: Crusade (Default)
Unixronin

December 2012

S M T W T F S
      1
2345678
9101112131415
16171819202122
23242526272829
3031     

Most Popular Tags

Expand Cut Tags

No cut tags
Thursday, April 22nd, 2010 06:41 pm (UTC)
I'm unclear what a "flagger" actually does apart from risk life and limb by not being a concrete barrier.

In Europe flaggers are pretty rare and never ever police. Large lumps of conrete generally do a better job of ensuring that traffic goes around the workers and if some driver isn't paying attention you don't have to scrape the flagger off the road.
Thursday, April 22nd, 2010 06:56 pm (UTC)
At least in Maine, the flagger is usually in charge of alternating traffic on a narrow lane, coordinating by hand-held radio with the other end of the construction zone. Concrete barriers don't communicate as well.
Thursday, April 22nd, 2010 07:43 pm (UTC)
Flaggers are there to do things a concrete barrier can't do, such as stop traffic when a construction vehicle is about to enter or leave the construction area, or to safely control alternating-direction traffic flow on a section of road that's reduced to one lane when there's no practical alternate route.
Thursday, April 22nd, 2010 07:52 pm (UTC)
In Europe we use traffic lights for alternate traffic flow mostly. These days they mostly have a motion/object sensor to determine whether there is anyone waiting.

Flaggers are really there for very very short duration events such as letting a truck in/out or perhaps something like fixing a streetlight which takes a few minutes and just requires traffic to maneuver around a parked vehicle.
Thursday, April 22nd, 2010 07:58 pm (UTC)
Traffic-sensing signals are still extremely rare in the US. They cost more. :p
Thursday, April 22nd, 2010 08:49 pm (UTC)
And they don't recognize bicycles . . .
Friday, April 23rd, 2010 05:58 am (UTC)
or motorcycles, usually.